A two-sample hypothesis test is comparing the averages of the following populations. Population 1 is the salary of female employees and Population 2 is the salary of male employees. If a hypothesis test wasconducted to see if the average salary of males is greater than the average salary of females, which of the following would be the null and alternative hypotheses?O a. Hμ₁-₂20 and H₁₁-₂11 1O b. Hμ-₂0 and H-₂0Η<0>0Oc. Hμ-₂0 and Hμμ ≥02НOd. Hμ-₂0 and H-₂≤02

Population 1 is the salary of female employees.Population 2 is the salary of male employees.A…

Answered: Population is the salary Temale…

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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MY NOTES Bags of a certain brand of tortilla chips claim to have a net weight of 12.5 oz. A representative of a consumer advocate group wishes to see if there is any evidence that the mean net weight is less than advertised and so intends to test the hypotheses H0: μ = 12.5, HA: μ < 12.5. To do this, he selects 24 bags of tortilla chips of this brand at random and determines the net weight of each. Data reveals a bell-shaped histogram, a sample mean of 12.31 ounces, and a standard deviation of 0.48 ounces.(a) What type of test is this? Two-sided, one-sample test Two-sided, two-sample test One-sided, two-sample test One-sided, one-sample test (b) Given the test statistic = -1.94 and α = 0.05, which of the following statements is the decision? Reject H0; conclude the bags are underweight. Fail to reject H0; do not conclude the bags are underweight. Fail to reject H0; conclude the the bags are underweight. Reject H0; conclude the bags are overweight.
Scenario: 200 people were asked, “Who is your favorite superhero?” Below are the data. Test the null hypothesis that the population frequencies for each category are equal. α= .05. Iron Man Black Panther Wonder Woman Spiderman fo = 40 fo = 60 fo =55 fo = 45 fe = fe = fe = fe = What is the correct result based on the data?
Given the two independent samples below, conduct a hypothesis test for the desired scenario. Assume all populations are approximately normally distributed. Sample 1 Sample 2 n1=n1= 124 n2=n2= 164 ¯x1=x¯1= 27 ¯x2=x¯2= 23.1 s1=s1= 3.6 s2=s2= 4.1 Test the claim: Given the null and alternative hypotheses below, conduct a hypothesis test for α=0.1α=0.1.H0H0: μ1=μ2HaHa: μ1>μ2 Given the alternative hypothesis, the test is Determine the test statistic. Round to four decimal places.t= Find the pp-value. Round to 4 decimals.pp-value = Make a decision. Fail to reject the null hypothesis. Reject the null hypothesis.
Ida Find the P-value for the following values of the test statistic t, Sample size n, and alternate hypothesis H1. If you use table A. 3, you may specify that is between two values. t = -1.584, n = 19, H₁:μ ‡μO
Given the two independent samples below, conduct a hypothesis test for the desired scenario. Assume all populations are approximately normally distributed. Sample 1 Sample 2 110 n2 : 179 28.9 23.6 81 = 3.8 82 = 3.9 Test the claim: Given the null and alternative hypotheses below, conduct a hypothesis test for a = 0.05. Ho: H1 = 42 Ha: H1 < 42 a. Given the alternative hypothesis, the test is Select an answer b. Determine the test statistic. Round to four decimal places. t = c. Find the p-value. Round to 4 decimals. с. p-value = d. Make a decision. O Fail to reject the null hypothesis. O Reject the null hypothesis.
7.Statistics Quiz
A claim is given. Select the corresponding null hypothesis and using a significance level of α = 0.05 and the given p-value, determine if you reject the null hypothesis or fail to reject the null hypothesis. Claim: Americans spend on average less than 8 minutes in the shower. Data: In a sample of Americans (n = 1,803), the average time spent in the shower is 7.8 minutes with a p-value of 0.0546. A. H0 :μ=8and we reject the null. B. H0 :μ=8and we fail reject the null. C. H0 :μ>8and we reject the null. D. H0 :μ>8and we fail reject the null. E. H0 :μ<8and we reject the null. F. H0 :μ<8and we fail reject the null.
In studying the responses to questions on a multiple-choice test, the following sample data are obtained. At the α=0.05 significance level, test the claim that the responses occur with the same frequency. H0 : The responses to the questions occur with the same frequency. H1 : The responses to the questions do not occur with the same frequency. Response ObservedFrequency ExpectedFrequency (O−E)2E A 18 B 7 C 6 D 20 E 18 What is the χ2 test-statistic for this data? Round to four decimal places.χ2= _____________ What is the p -value? Round to four decimal places. p -value=__________
Need help with #19
fror TIME SUBJECT ROOM AVONOW 1 INSTRUC You may need to use the appropriate appendix table or technology to answer this question. Consider the hypothesis test. Ho: P₁ P₂ ≤0 Ha: P₁ P₂ > 0 The following results are for independent samples taken from the two populations. Sample 2 A VENEMAAL 7₂ = 300 Sample n₁ = 200 P₁ = 0.24 P₂ = 0.14 (a) Calculate the test statistic. (Round your answer to two decimal places.) 2.86 You may have rounded in the wrong direction. AVAN XVԺՎՈԼԵՏ
A college recently advertised that 92% of its students graduate debt-free. A student advocacy organization thinks that the college's claim is unlikely. The organization collected a random sample of 1051 recent graduates from the college and found that 90.2% of the sample graduated without any student debt. Use significance level of 10 % and employ the critical-v proportion of all students from this college that graduate debt-free is different than 92%. method to test the hypothesis that the State the null and alternative hypothesis for this test. О Н: р 0.92 О Но:р - 0.92, Ні:р 40.92 О Но:р 4 0.92, H:р - 0.92 О Но:р > 0.92, Нi:р <0.92 Determine the critical-value (s) for the hypothesis test. O-1.96, 1.96 O-1.64, 1.64 O-2.81, 2.81 01.64 Determine test statistic for the hypothesis test. O 3.38
You may need to use the appropriate appendix table or technology to answer this question. Consider the following hypothesis test. H0: ?1 − ?2 ≤ 0 Ha: ?1 − ?2 > 0 The following results are for two independent samples taken from the two populations. Sample 1 Sample 2 n1 = 40 n2 = 50 x1 = 25.1 x2 = 22.8 ?1 = 5.9 ?2 = 6 (a) What is the value of the test statistic? (Round your answer to two decimal places.) (b) What is the p-value? (Round your answer to four decimal places.) (c) With ? = 0.05, what is your hypothesis testing conclusion? Reject H0. There is sufficient evidence to conclude that ?1 − ?2 > 0. Do not Reject H0. There is sufficient evidence to conclude that ?1 − ?2 > 0. Do not reject H0. There is insufficient evidence to conclude that ?1 − ?2 > 0. Reject H0. There is insufficient evidence to conclude that ?1 − ?2 > 0. I need help with parts A and B

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