The number that has the exponent over it is called the what?

For constructing a confidence interval for the mean of a Normal population with unknown population standard deviation, taking a larger sample size would reduce the margin of error.

However, if increasing the sample size is not feasible, then using a lower level of confidence can also reduce the margin of error.

This is because a lower level of confidence requires a smaller critical value, resulting in a narrower confidence interval, and thus a smaller margin of error.

Using z-methods instead of t-methods or converting data into categorical values will not necessarily reduce the margin of error.

Hypothesis testing is a statistical method used to determine whether there is enough evidence to reject or fail to reject a null hypothesis (H0).

In this case, the null hypothesis is that the proportion of people who believe that the state of the economy is the country’s most significant concern is equal to 75%.

Since we are testing for a difference in proportion in either direction, the appropriate alternative hypothesis is Ha: p ≠ 0.75.

This is a two-tailed test, which means we are interested in deviations from 75% in both directions.

Option (a) and (b) are incorrect because they only consider one tail of the distribution. Option (c) is incorrect because it tests for a difference only in one direction (greater than).

Learn more about standard deviation here:

https://brainly.com/question/29115611

#SPJ11

ANSWER:

31.25

STEP-BY-EXPLANATION:

you take 32 percent of a number and get 10, then what is that number?

you take 32 percent of a number and get 10, then what is that number?In other words, you know that 32 percent of a number is 10 and you want to know what that initial number is.

you take 32 percent of a number and get 10, then what is that number?In other words, you know that 32 percent of a number is 10 and you want to know what that initial number is.To solve this problem you multiply 10 by 100 and then divide the total by 32 as follows:

you take 32 percent of a number and get 10, then what is that number?In other words, you know that 32 percent of a number is 10 and you want to know what that initial number is.To solve this problem you multiply 10 by 100 and then divide the total by 32 as follows:(10 x 100) / 32

you take 32 percent of a number and get 10, then what is that number?In other words, you know that 32 percent of a number is 10 and you want to know what that initial number is.To solve this problem you multiply 10 by 100 and then divide the total by 32 as follows:(10 x 100) / 32When we put that into our calculator, we get the following answer:

you take 32 percent of a number and get 10, then what is that number?In other words, you know that 32 percent of a number is 10 and you want to know what that initial number is.To solve this problem you multiply 10 by 100 and then divide the total by 32 as follows:(10 x 100) / 32When we put that into our calculator, we get the following answer:31.25

GAVE ME THE BRAINLIEST IF MY ANSWER WAS HELPFUL...

Answer:

b. 31.25

Step-by-step explanation:

\(\frac{10}{y} :\frac{32}{100}\)

y × 32 = 10 × 100

32y = 1000

32y ÷ 32 = 1000 ÷ 32

y = 31.25

The rule of the reflection of the triangle ABC to A'B'C' across the y-axis will be (x, y) to (-x, y).

It is the image of the point which is located in the opposite direction of a given point.

The rule of the refection will be given as,

Firstly, the rule for reflecting a point about the y-axis is;

While reflecting on the y-axis, we get the reflected points (x, y) by the coordinates (-x, y).

The standard of the impression of the triangle ABC to A'B'C' will be (x, y) to (- x, y).

More about the reflection of the point link is given below.

https://brainly.com/question/938117

#SPJ1

Volume = 1÷3 area of base × height

Answer:

168 in³

Step-by-step explanation:

Volume of a rectangular pyramid

\(V=\dfrac13lwh\)

where:

Given:

\(\implies \textsf{volume}=\dfrac13\cdot 8 \cdot 7 \cdot 9=168\: \sf in^3\)

Answer:

Step-by-step explanation:

I don’t no

This is a pond in the shape of a prism. It is completely full of water. Colin has to wait for the pond to completely empty is 2hrs and 30minutes.

We have a pond which is completely filled with the water.

Area of the side face ( trapezium shaped)

= 1/2 x (1.4 + 0.6) x 2

= 2 m²

Volume = area x height (here width)

V = 2x1 = 2 m³

The level goes down by 20cm in the first 30 mins

Volume of water that will be taken down =

=0.2 x 1 x 2

=0.4 m³ ( upper water will form cuboid face)

Now,

⇒0.4 m³ water is taken out in 30 minutes

⇒1 m³ water is taken out in 30/0.4 minutes

⇒2 m³ water is taken out in 30/0.4 x 2 minutes

⇒30x2/0.4

⇒150 minutes.

So the pond will be completely empty in 150 min that is 2hrs30mins.

Learn more about Pond based question:

https://brainly.com/question/20908312

#SPJ4

We can determine whether two lines are parallel, perpendicular, or neither using the slopes of the lines.

Two lines are parallel when both of the lines have the same slope, for example:

Two lines are perpendicular to each other when the product between the lines is equal to -1, for example:

if none of the conditions stated before the lines are neither parallel nor perpendicular.

In the given exercise:

both lines have different slopes, then they are not parallel.

Find the product between the slopes,

Answer:

The lines shown are perpendicular to each other because the product between the slopes is equal to -1.

Answer:

33.33333333

Step-by-step explanation:

Area of the rectangle is 15\(x^{11}\) - 27\(x^{7}\) - 21\(x^{5}\) + 6\(x^{4}\).

To find the area of the rectangle, we need to multiply its length by its width. In this case, the width is given as 3x^4, and the length is given as 5\(x^{7}\)-9\(x^{3}\)-7x+2. Therefore, the area of the rectangle can be calculated as:

Area = width x length

Area = 3\(x^{4}\)(5\(x^{7}\)-9\(x^{3}\)-7x+2)

To simplify this expression, we need to distribute the 3x^4 term into the parentheses:

Area = 15\(x^{11}\) - 27\(x^{7}\) - 21\(x^{5}\) + 6\(x^{4}\)

This is the final expression for the area of the rectangle in terms of x. We can see that the degree of the polynomial is 11, which means that the area of the rectangle is a high-degree polynomial. The area also contains both positive and negative terms, which means that it can take on both positive and negative values depending on the value of x.

To learn more about Area here:

https://brainly.com/question/9655204

#SPJ1

Answer:

41.7 kilohertz

Option D (x, y)→ (-2x, 2y) is the transformation that maps triangle UVW to triangle EFG.

In mathematics, a transformation refers to a process of changing the position, size, or orientation of a geometric shape. It is a fundamental concept in geometry, algebra, and other branches of mathematics that studies the properties of objects and their relationship with space.

Transformations can be classified into two main types: rigid and non-rigid transformations. Rigid transformations preserve the size and shape of the object while changing its position and orientation. Common examples of rigid transformations are translations, rotations, and reflections. Non-rigid transformations, on the other hand, change the size and shape of the object as well as its position and orientation.

Transformations are used in various areas of mathematics and science, such as computer graphics, physics, and engineering. They are also important in real-world applications, such as in designing and modeling objects, analyzing data, and solving practical problems.

The transformation involves a reflection across the y-axis (multiplication by -1 on the x-coordinate) and a dilation by a factor of 2 in the y-direction (multiplication by 2 on the y-coordinate).

Applying this transformation to the coordinates of triangle UVW:

(0, -2) -> (0, -4)

(2, 0) -> (-4, 0)

(-2, 2) -> (4, 4)

These transformed coordinates match the coordinates of triangle EFG, so option D is the correct answer.

To know more about coordinates  visit:

https://brainly.com/question/29092536

#SPJ1

We can compute various descriptive statistics such as the mean, median, mode, range, variance, standard deviation, sum of values, and sum of squared deviations.

The sample mean, also known as the average, provides information about the central tendency of the variable X. It represents the typical or average number of coupons used by the shoppers in the sample. In this case, calculating the mean of the given data would provide an estimate of the average number of coupons used over the 6-month period.

The sample standard deviation measures the dispersion or variability of the data points around the mean. It indicates how much the individual observations deviate from the mean value. A higher standard deviation implies greater variability, indicating a wider range of coupon usage among the shoppers in the sample.

By computing the sample mean and standard deviation, we can understand the average coupon usage and the degree of variability in the data. These statistics help us summarize and interpret the characteristics of the variable X, allowing us to make comparisons, identify outliers, assess the spread of the data, and make inferences about the larger population from which the sample was drawn.

Learn more about mean here:

https://brainly.com/question/30112112

#SPJ11

its B 15 divide by 3 is 5 because 2 - 5 is -3 - 15 is 5

a. To find the probability that at most 4 customers arrive within a 5-minute period, we need to use the Poisson distribution with the parameter λ = A * t, where t is the time period in hours. In this case, t = 5/60 = 1/12 hour. So, λ = 36/12 = 3.

Using Excel, we can calculate P(X <= 4) = POISSON(4,3,TRUE) = 0.2650. Therefore, the probability that at most 4 customers arrive within a 5-minute period is 0.2650.

b. To find the probability that the service time will be less than or equal to 30 seconds, we need to use the exponential distribution with the parameter μ = u/60, where u is the service rate in customers per hour. In this case, μ = 45/60 = 0.75.

Using Excel, we can calculate P(X <= 30) = EXPONDIST(30,0.75,TRUE) = 0.4013. Therefore, the probability that the service time will be less than or equal to 30 seconds is 0.4013.

Answer:The answer to the first one is 3.75 and for the second one it is 0.875

Step-by-step explanation:

hope it helps

Using Direct Variation, the value of n = 26

An equation is an expression that shows the relationship between two or more numbers and variables.

We need to Write y = kx based on the conditions stated.

Replace with: -18 = k x 3

Turn the sides around: k × 3 = -18

Now Subtract the coefficient of the variable from both sides of the equation:

k = 26 compute the product or quotient.

Write the function's equation as;

y = 26x

Replace with:

n = 26 × 4

n = 104; compute the product or quotient.

Response: n = 26

To learn more about direct variation from given link

brainly.com/question/2375770

#SPJ1

Answer:

m=4b and b=4m

Step-by-step explanation:

this is the right answer

Answer:

F.

Explanation:

The number of quarts of cream Type A is x.

Type A cream has 18% butterfat, so the amount butterfat will be 0.18x

For type B, we know that the total amount of cream will be 90, so if cream type A is x, cream type B is 90 - x.

Type B crem has 24% butterfat, so teh amount in the mixture will be 0.24(90-x)

Then, the mixture will be 90 quarts of crean that is 22% butterfat, so the amount in the mixture will be 0.22(90)

Therefore, the table that represent this data is table F.

So, the answer is F.

Answer:

We can't see the functions. We also can read the domain or the range. Personal suggestion is to write the domain  and range (-infity, 0) but substitute in what applies to your situation.

Step-by-step explanation:

Answer:

x=23 miles

Step-by-step explanation:

Using the formal 62.55 = 4.25 + 2.65x

62.55 - 4.25 = 58.3

58.30=2.65x

58.30/2.65=x

22=x

Dont forget to add in the 1st mile

23 total miles

Answer:

\(\begin{array}{ccc}cause&accidents&frequency\\pilot\ error&581&0.253\\human\ error&56&0.024\\weather&579&0.252\\mechanical&555&0.242\\sabotage&526&0.229\end{array}\)

Pilot error, better training of pilots may reduce accidents.

Step-by-step explanation:

The total number of crashes is:

\(n = 581+56+579+555+526\\n=2297\ crashes\)

The relative frequency is given by the number of accidents caused by each factor divided by the total number of accidents. The relative frequency distribution is:

\(\begin{array}{ccc}cause&accidents&frequency\\pilot\ error&581&0.253\\human\ error&56&0.024\\weather&579&0.252\\mechanical&555&0.242\\sabotage&526&0.229\end{array}\)

The most serious threat to aviation​ safety is pilot error, a better training of current and future pilots could be a solution to reduce accidents.

Hey there! :)

Answer:

V = 3408 units³

Step-by-step explanation:

Given:

r = 12

h = 71

Volume of a cone: V = 1/3 (bh) where b = πr²

Calculate the area of the base:

A = 12²π

A = 144π units²

Plug this into the formula for the volume of a cone:

V = 1/3 (144π · 71)

V = 1/3 (10224)

V = 3408 units³

Answer:

B . 3408 π  units^3

Step-by-step explanation:

\(h = 71\\r = 12\\V =?\\V = \frac{1}{3} \pi r^2 h\\V = \frac{1}{3} \pi \times 12^2 \times 71\\V = \frac{1}{3} \pi \times 144 \times 71\\V = 3408 \pi -units^3\)

Answer:

2/3

Step-by-step explanation:

To find the tangent ratio of angle A we write the ratio of opposite side to adjacent side.

Answer:

São seis nonos

Step-by-step explanation:

Answer:

3(6) -1

 ------------

 2(6)+1

Step-by-step explanation:

first find r(6)

r(6) =3(6) -1

      = 18 -1

Then find s(6)

s(6) = 2(6)+1

Then divide

r(6)/s(6) = 3(6) -1

               ------------

                  2(6)+1

Answer:A

Step-by-step explanation:

A) The linear equation model: y = 0.06x + 18

B) If you spend 180 minutes on the phone in a month, you would be billed $28.8

C) If your bill was $45.00 one month, you must have spent 450 minutes on the phone in that month

x represents the number of minutes spent in a month

y = total cell phone charge for the month

Let c represent the monthly fee

The equation of a line is given as

y = mx + c

Let m represent the charge per minute

m = 0.06

y = 0.06x + c...........(*)

In one month, you spent 280 minutes over the phone, and had a bill totaling $34.80

x = 280 minutes

y = 34.80

Substitute these values into equation (*)

34.80 = 0.06(280) + c

34.80 = 16.8 + c

c = 34.80 - 16.8

c = 18

The monthly fee = $18

A) The linear equation model is therefore:

y = 0.06x + 18

B) If you spend 180 minutes on the phone in a month, how much will you be billed?

y = 0.06x + 18

x = 180

y = 0.06(180) + 18

y = 10.8 + 18

y = 28.8

If you spend 180 minutes on the phone in a month, you would be billed $28.8

C) If your bill was $45, find the number of minutes spent on phone

Substitute y = 45 into the linear equation gotten

y = 0.06x + 18

45 = 0.06x + 18

0.06x = 45 - 18

0.06x = 27

x = 27/0.06

x = 450

If your bill was $45.00 one month, you must have spent 450 minutes on the phone in that month

The difference between the means of group 1 and group 2 would give us an idea of the direction and magnitude of any difference in motivation between the two groups.

Here are some possible ways to approach this question:

To investigate whether there is a true difference in motivation between the two groups, we could conduct a study or experiment that randomly assigns participants to either group 1 or group 2 and measures their motivation using a standardized test or questionnaire. We could then compare the average motivation scores between the two groups and use statistical tests to determine whether the difference is statistically significant.

The maximum difference between group 1 and group 2 that is likely if there is no true difference between the two groups is known as the margin of error. The margin of error depends on the sample sizes of the two groups and their variances. If the sample sizes are large and the variances are small, the margin of error will be smaller, indicating that any observed difference between the two groups is more likely to be statistically significant. If the sample sizes are small and the variances are large, the margin of error will be larger, indicating that any observed difference between the two groups is less likely to be statistically significant.

The variances of group 1 and group 2 would be important to know in order to determine the precision of the estimated means for each group. If the variances are large, it may be difficult to draw conclusions about the true population means based on the sample means alone.

The sizes of group 1 and group 2 would also be important to know in order to determine the statistical power of any tests that we conduct. If the sample sizes are small, we may not have enough power to detect a true difference between the two groups, even if one exists.

The difference between the means of group 1 and group 2 would give us an idea of the direction and magnitude of any difference in motivation between the two groups. However, without additional information or context, we cannot determine whether this difference is statistically significant or meaningful.

Learn more about "Means and Variances"  : https://brainly.com/question/25639778

#SPJ11