You are testing the claim that the mean GPA of night students is different from the mean GPA of daystudents. You sample 35 night students, and the sample mean GPA is 2.91 with a standard deviation of0.97. You sample 20 day students, and the sample mean GPA is 2.99 with a standard deviation of 0.82. Testthe claim using a 1% level of significance. Assume the population standard deviations are unequal and thatGPAS are normally distributed. Give answer to at least 4 decimal places.What are the correct hypotheses?Ho: M₁H₁: M₁Test Statistic =Critical Values ==±H₁₂Based on the hypotheses, find the following:≠vH₂OF(Just enter the positive CV.)The correct decision is to Fail to reject the null hypothesisThe correct summary would be: There is not enough evidence to support the claim ✓of night students is different from the mean GPA of day students.o that the mean GPA

Given, For night students (x1) : sample size (n1) = 35 sample mean (x̄1) = 2.91 sample standard…

Answered: tudents. You sample 35 night students,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Tina catches a 14-pound bass. She does not know the population mean or standard deviation. So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds. Find the t and calculate a 95% (α = .05) confidence interval.
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Question 7 of 16 Suppose IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation of 15. Use the Empirical Rule to answer the following. a. What percentage of IQ scores are between 85 and 130? Answer If needed, round your answers to 1 decimal place b. What percentage of IQ scores are over 115? Answer = If needed, round your answers to 1 decimal place c. 99.7% of IQ scores are between E and Write the lower number in the first space and the higher number in the second space
Suppose x has a normal distribution with mean ? = 53 and standard deviation ? = 7.Describe the distribution of x values for sample size n = 4. (Round ?x to two decimal places.) ?x = ?x = Describe the distribution of x values for sample size n = 16. (Round ?x to two decimal places.) ?x = ?x = Describe the distribution of x values for sample size n = 100. (Round ?x to two decimal places.) ?x = ?x =
An archer’s standard deviation for his hits is six (data is measured in distance from the center of the target). An observer claims the standard deviation is less.a. What type of test should be used?b. State the null and alternative hypotheses.c. Is this a right-tailed, left-tailed, or two-tailed test?
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Answer number 3 to 5 pls. I don't want to waste my money here
A set of exam scores is normally distributed with a mean = 82 and standard deviation = 9. Use the Empirical Rule to complete the following sentences. 68% of the scores are between and 95% of the scores are between and 99.7% of the scores are between and
Children with autism differ significantly from children without autism on tests of varbal ability. repeated measures? or ind. with two tails?
Step 1 of 3. State the null and alternative hypotheses for the test. Step 2 of 3. Compute the value of the test statistic. Round your answer to three decimal places Step 3 of 3. Draw a conclusion and interpret the decision.
The mean annual tuition and fees for a sample of 8 private colleges was $30,000 with a standard deviation of $4500. A dotplot shows that it is reasonable to assume that the population is approximately normal. You wish to test whether the mean tuition and fees for private colleges is different from $34,100. State the null and alternate hypotheses. O H;:µ = 34,100, H̟: µ# 34,100 O H;iH# 34,100, H̟: µ = 34,100 O H;:H = 30,000, H,: µ# 30,000 O H;iH = 34,100, H.: µ = 30,000

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