Answer:
False
Step-by-step explanation:
When the null hypothesis is not rejected, it does not mean that the null hypothesis is proven to be true. Instead, it suggests that there is not enough evidence to reject the null hypothesis based on the available data or statistical analysis. There could still be a possibility that the null hypothesis is false but the data or analysis did not provide enough evidence to support it.
please help lol !!! :)
Answer:
C
Step-by-step explanation:
K l m n reflection over the x axis is
Answer:
no image or coordinates so people can't answer it
Step-by-step explanation:
What type of correlation/association exists?
The number of hours you sleep in and the number of hours you are awake during the day
Answer:
Negative Correlation
Step-by-step explanation:
there is a negative correlation between the number of hours you sleep in and the number of hours you are awake during the day as the longer you are either awake or asleep the less time you will be doing the other thing
Here is a graph I made that will hopefully help you understand.
Even if I switched around the label for the x or y-axis, the correlation would still remain the same because the more you stay asleep, the less you will be awake and vice versa.
A dozen eggs cost $2.49. What is the cost per egg?
Answer:
i think its $0.20
Step-by-step explanation:
12 1
------ = ---------
2.49 0.20
1 egg = $0.20
с
6.5
D
2.6
ө
A
4.9
В
Answer:
i think
the answer is A. 4.9
pls help!!! I will give brainliest!!
2/3 - 1/5
A) 1/2
B) 13/15
C) 30/15
D) 7/15
Answer:
D: 7/15
Step-by-step explanation:
you find the common factor of the denominators so now you have 10/15 - 3/15. then you subtract the numerators to get 7/15.
hope this helps :))
Answer:
\(\frac{7}{15}\)
Step-by-step explanation:
=> \(\frac{2}{3}-\frac{1}{5}\)
=> \(\frac{2\times{5}}{3\times{5}}-\frac{1\times{3}}{5\times{3}}\)
=> \(\frac{10}{15}-\frac{3}{15}\)
=> \(\frac{10-3}{15}\)
=> \(\bold{\frac{7}{15}}\)
Which expression is equivalent to the given expression?
4(a−3)=
−8a
4a−12
4a−3
−4(a+3)
Answer:
The answer is 4a-12
Step-by-step explanation:
Hope this helped :>
Answer:
4a-12
Step-by-step explanation:
i hope this helps
A= 7x^2-3x+10 B=-4x^2+6x-4
A-B=
Hello,
A - B = 7x² - 3x + 10 - (-4x² + 6x - 4)
A - B = 7x² -3x + 10 + 4x² -6x + 4
A - B = 11x² - 9x + 14
Which equation is represented by the graph below?
Total pieces of food eaten 57 153 90 food percentage* % % % simulated number of birds in flock for 2nd generation** * divide each flock's total pieces of food by 300, the total number of pieces of food eaten. ** multiply the food percentage for each flock by the total number of birds (30).
The food percentage would be 19%, 51% and 30%.
Given that we've done it
Number of meals consumed by X = 57
Food consumed by Y = 153.
Number of meals consumed by Z = 90
Total amount of meals consumed = 57 + 153 +90 = 300
Food proportion of flock X thus Equals 57 / 300 * 100 = 19 %
flock food percentage Y =153/300 * 100 = 51 %
flock food percentage Z = 90/300 * 100 = 30 %
This means that the percentages are 19%, 51%, and 30%.
Based on the given information, we have:
Flock X ate 57 pieces of food.
Flock Y ate 153 pieces of food.
Flock Z ate 90 pieces of food.
The total number of pieces of food eaten is 300 (sum of the individual flock's food).
The food percentage for Flock X is 57/300 ≈ 0.19 or 19%.
The food percentage for Flock Y is 153/300 ≈ 0.51 or 51%.
The food percentage for Flock Z is 90/300 = 0.3 or 30%.
The total number of birds for the second generation is 30 (given).
To find the simulated number of birds in each flock for the second generation, we multiply the food percentage for each flock by the total number of birds (30).
For Flock X: 0.19 × 30 = 5.7 (rounded to the nearest whole number: 6 birds)
For Flock Y: 0.51 × 30 = 15.3 (rounded to the nearest whole number: 15 birds)
For Flock Z: 0.3 × 30 = 9 (rounded to the nearest whole number: 9 birds)
Therefore, the simulated number of birds in Flock X, Flock Y, and Flock Z for the second generation are 6, 15, and 9 birds, respectively.
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Complete Question
Flock X Flock Y Flock z Total Pieces of Food Eaten 57 153 90 Food Percentage* % 1% % Simulated Number of Birds in Flock for 2nd Generation ** * Divide each flock's total pieces of food by 300, the total number of pieces of food eaten. ** Multiply the food percentage for each flock by the total number of birds (30). DONE
Answer:
19 51 30
6 15 9
second part Is Y then X
Step-by-step explanation:
5/3 x + 1/3 x = 40/3 + 8/3 x
Use the following table to determine whether or not there is a significant difference between the average hourly wages at two manufacturing companies.
Manufacture 1 Manufacturer 2
n1 = 81 n2 = 64
x1=$15.80 x2=$15.00
σ1 = $3.00 σ2 = $2.25
What is the test statistic for the difference between the means?
The test statistic for the difference between the means is 2.22.
How to determine test statistics?To determine the test statistic for the difference between the means of two independent populations, use the two-sample t-test:
t = (x₁ - x₂) / √[(σ₁² /n₁) + (σ₂² /n₂)]
where x₁ and x₂ = sample means, σ₁ and σ₂ = sample standard deviations, and n₁ and n₂ = sample sizes.
Using the given values:
x₁ = $15.80
x₂ = $15.00
σ₁ = $3.00
σ₂ = $2.25
n₁ = 81
n₂ = 64
Calculate the test statistic as:
t = ($15.80 - $15.00) / √[($3.00²/81) + ($2.25²/64)]
t = 2.22
Therefore, the test statistic for the difference between the means is 2.22.
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Solve for x
12:15 = x 5
36
060
Answer:
x = 12:15=×5
36
060
Step-by-step explanation:
12:15=0
x=0
Answer:
4
Step-by-step explanation:
Divide the left side by 3
12:15
12/3 : 15/3
4:5
x would be 4
FInd the Area of the figure
Answer:
18,400m^2
Step-by-step explanation:
Does anyone know what is 21% of 200?
21% of 200 is going to be 42.
If you want this the simple way, multiply 21% to 200 and it will actually tell you the answer. :)
Answer:
42
Step-by-step explanation:
To find the percentage of a number, take the percent and change it to decimal form.
21% = .21
Multiply this by the number
.21 * 200
42
21% of 200 = 42
50 points each!!!!!!!!!
it isn't B
Answer:
65 c\(m^{2}\)
Step-by-step explanation:
\(10 cm^{2} + 10 cm^{2} +10 cm^{2} +10 cm^{2}+ 25 cm^{2} = 65cm^{2}\)
help me with this question math please
Answer:
42.94$ is the answer.....
Write the inequality shown by the shaded region in the graph with the boundary line negative 5X plus 2Y equals -4
Given,
The expression is,
\(-5x+2y=-4\)As the line of the equation is shaded has
The shaded part is above the line,
So,
\(-5x+2y>-4\)Hence, the inequality is -5x+2y>-4.
If Jodi walks 1 hour and 17 minutes, explain how you would convert this to
a decimal AND give how many hours this is.
Answer:
Step-by-step explanation:
17 minutes is 17/60 hours=0.28333 ≅0.283 rounded to the nearest thousandth
Jodi walked for 1.283 hrs.See attachment for math work and answer.
Provide an appropriate response.The mean annual income for adult women in one city is $28,520 and the standard deviation of theincomes is $5,190. The distribution of incomes is skewed to the right. For samples of size 30, whichof the following statements best describes the sampling distribution of the mean?
Recall the Central Limit Theorem.
The Central Limit Theorem says that no matter what the distribution of the population is, as long as the sample is “large,” meaning of size 30 or more, the sample mean is approximately normally distributed.
If the population is already normal, then any sample size will produce a normal sampling distribution.
Question 19 of 19
Which of the following functions have a domain of (00,00) and a range of
(2,00);
Check all that apply.
A. /(x)=3*-2
B.
(x)=0.25-2
c./(x)=3*+2
D. /(x) = 0.25 +2
Thereforef(x)= \(0.25^{2} -2\),and f(x)= \(3^{2} -2\) are the functions with domain (-(-∞,∞),) and range ((-∞,-2,).
What is function?The link between two or more variables stated in equal form is called a function.
Every x value in a function must match a matching y value. The domain and range of the function, respectively, are determined by the values of x and y.
Four functions have been provided to us, and we must identify the ones with domains of (-∞,∞) , and ranges of (∞ -2), respectively.
By using f(x)= \(0.25^{2} +2\)
f(x)=1-2
=-1
f(1)=0.25-2
=-1.75
f(2)=0.50-2
=-1.50
f(-2)=1/0.50-2
=1-1/0.50
=0
Because the value of the function grows from -2 as the value of x increases, this function has a domain of (-,) and a range of (-2,).
By using f(x)=
Since the aforementioned function is the antithesis of the first function, it operates in an antithetical manner.
By using f(x)= \(3^{2} -2\)
f(0)=1-2
=-1
f(1)=3-2
=1
f(-2)=1/9-2
=(1-18)/9
=-17/9
=-1.8
Because the value of grows from -2 as the value of x increases, this function likewise has a domain (-∞,∞) and range (-∞,-2).
The behavior of the next function is the reverse of that of the third function, as a result.
Thereforef(x)= \(0.25^{2} -2\),)and f(x)= \(3^{2} -2\) are the functions with domain (-(-∞,∞),) and range ((-∞,-2,).
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Please don’t ignore I really need some help on this
Answer:
38.22
Step-by-step explanation:
Remark
You take the discount first. Most places apply a sales tax only when money changes hands (or it should be that way).
Discount
45.50 * 20/100 = 9.10
45.50 - 9.10 = 36.4
Sales Tax
46.4 * 5/100 = 1.82
Total Cost
Total Cost after the discount = 36.4 + 1.82 = 38.22
Sophie put $2.00 in her bank account in January. The amount in her account doubles each month.
What amount will Sophie have in her account in July?
january- $2.00
Feb 4.00
March 8.00
Apr 16.00
may 32.00
jun 64.00
jul 128.00
she ends up with $128
:)
asteak at a restaurant actually weighs 17 ounces (the true value),but the menu claims that it is a 15-ounce steak. Find the values ofabsolute and relative errors.
The absolute error is 2 ounces, and the relative error is approximately 11.76%.
The absolute error is the difference between the claimed weight and the true weight of the steak, which is:
Absolute error = |15 - 17| = 2 ounces
The relative error is the absolute error divided by the true weight of the steak, which is:
Relative error = (2/17) x 100% = 11.76%
So, the absolute error of the claimed weight is 2 ounces, and the relative error is 11.76%.
To find the absolute error, you'll need to subtract the true value (17 ounces) from the claimed value (15 ounces):
Absolute error = |True value - Claimed value| = |17 - 15| = 2 ounces
Now, to find the relative error, you'll divide the absolute error by the true value, and then multiply by 100 to get a percentage:
Relative error = (Absolute error / True value) x 100 = (2 / 17) x 100 ≈ 11.76%
So, the absolute error is 2 ounces, and the relative error is approximately 11.76%.
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Whats in red is a question to pls explain tysm
The slope-intercept form of a linear equation is y = mx + b
In y = 3x - 2, the slope is 3 as it replaces m and the y-intercept is -2 as it replaces b.
A slope of 3 tells us that we go 3 units up for every 1 unit to the right. A y-intercept of -2 tells us that the line crosses the y-axis at (0, -2).
The graph is attached.
Paul placed square black and white tiles on a rectangular floor using the pattern shown.
If the entire floor measures 9 feet by 12 feet, what is the total number of white tiles that Paul used?
The total number of white tiles that Paul used is 54
How to determine the total number of white tiles used?From the question, we have the following parameters that can be used in our computation:
Length of the entire floor = 9 feet
Width of the entire floor = 12 feet
The total number of white tiles used is calculated as
Total number of white tiles used = Length of the entire floor * Width of the entire floor/2ft²
Substitute the known values in the above equation, so, we have the following representation
Total number of white tiles used = 9ft * 12ft/2ft²
Evaluate
Total number of white tiles used = 54
Hence, the white tiles are 54
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Which equation represents a line that is perpendicular to y = 2x-5 and passes through the point (6,12)?
b. calculate the mean and standard deviation of the number of people with blood type a-positive in 100 randomly selected us people using the binomial model. use r or a calculator.
The mean and standard deviation of the number of people with blood type a-positive in 100 randomly selected is μ=85, σ=3.5707
What is meant by standard deviation?The standard deviation is a statistic that measures the amount of variation or dispersion of a group of values.
Standard deviation is usually abbreviated SD and is most commonly represented in mathematical texts and equations by the lower case Greek letter (sigma) for population standard deviation or the Latin letter s for sample standard deviation.
A low standard deviation indicates that the values are close to the mean of the set (also known as the expected value), whereas a high standard deviation indicates that the values are spread out over a broader range.
Given, The population proportion of success is p=0.85
And also given that the sample size is n=100
b) The population mean is:
μ=np
μ=100(0.85)
μ=85
Therefore, mean=85
And the population standard deviation is:
σ=√np(1-p)
σ=√100(0.85)(1-0.85)
σ=3.5707
Therefore, standard deviation=3.5707
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The complete question is:
" Rh - positive blood appears in 85% of the population in the USA. a) Verify that it's possible to use the normal approximation to binomial distribution if a sample size is 100 randomly selected people. b) Find the mean and standard deviation of the normal distribution."
A salesperson at a jewelry store earns 6% commission each week. Last week, jarrod sold $680 worth of jewelry. How much did make in commission? How much did the jewelry store make from sales?
Answer:
1/ $ 4.08
2/ $675.92
Step-by-step explanation:
Take 68 times 0.06% = $4.08
680 - 4.08= 675.92
Answer:
Step-by-step explanation:
40.80 it told me the answer
Do not include anything other than numbers in your responses. For example, do not include comma or dollar sign in your numbers. As a rule of thumb, keep 2 decimal places for larger numbers and 3 decimal places for smaller numbers less than 1. An accounts department is concerned about the number of internal purchase forms that its users completed incorrectly. As a result they are monitoring the proportion of purchase forms that were not completed correctly. This was chosen, rather than measuring the actual number of defects, because any number of defects on a form required about the same effort to revise. The following table shows number of forms completed incorrectly "out of 200 forms" that is processed each day. Construct a control chart for the data that monitors the proportion of incorrect forms. Is the process in control? Day 1 2 Number of Incorrect Forms 13 13 3 15 4 13 19 5 6 13 15 7 8 16 9 13 10 13 Sum 143 IMPORTANT: In this problem, keep 3 decimal places in your calculations. Which of the following charts is appropriate? (P Chart/C Chart) Based on your choice on the last question, calculate "one" of the followings, P (for P chart), or C (for C chart): If you chose P Chart, how much is standard deviation of p (sigma_p)? (Write 0 if you are not doing P chart) Upper Control Limit: Lower Control Limit: Is the proportion of incorrect forms in control? (Yes/No)
We can determine if the process is in control by checking if any of the data points fall outside the control limits.
To construct a control chart for monitoring the proportion of incorrect forms, we will use the P chart because we are interested in monitoring the proportion of defects relative to the total number of forms processed.
To calculate the standard deviation of p (sigma_p) for the P chart, we can use the formula:
sigma_p = sqrt((p * (1 - p)) / n)
where:
p = average proportion of defective forms
n = number of forms processed
First, let's calculate the average proportion of defective forms (p):
p = Sum of incorrect forms / (200 * Number of days)
p = 143 / (200 * 10)
p ≈ 0.0715
Next, let's calculate sigma_p using the formula mentioned above:
sigma_p = sqrt((0.0715 * (1 - 0.0715)) / (200 * 10))
sigma_p ≈ 0.0093
For the P chart, the Upper Control Limit (UCL) is given by:
UCL = p + 3 * sigma_p
UCL ≈ 0.0715 + 3 * 0.0093
UCL ≈ 0.0994
The Lower Control Limit (LCL) for the P chart is typically set to zero since the proportion cannot be negative:
LCL = 0
Now, we can determine if the process is in control by checking if any of the data points fall outside the control limits.
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