The National Highvay Traffic Safety Administration reported the percentage of traffic accidents occumring each day of the week. Assume that a sample of 420 accidents provided the following data. Sunday Monday Tuesday Wednesday Thursday Friday Saturday 50 66 53 48 55 69 79 (0) Conduct a hypothesis test to determine if the proportion of traffic accidents is the same for each day of the week. Use a 0.05 level of significance. State the null and alternative hypotheses. O H,: Psun - Pran PWed "Prhu H: Not all proportions are equal. O H,: Not all proportions are equal. H: Psun " Pron " Prue " Pwed " Prhu " Prn Psat"7 O H,: Not all proportions are equal. Hi Psun * Pton * Prue * Pwed * Prnu * Pen* Pat O H,i Pun * Proen Prue " Pwed * Pthu H: All proportions are equal. Find the value of the test statistic. (Round your ansver to three decimal places.) Find the prvalue. (Round your answer to four decimal places.) prvalue = State your conclusion. O Reject H. We conclude that the proportion of traffic accidents is the same for each day of the week. O Do not reject H,. We conclude that the proportion of traffic accidents is the same for each day of the week. O Raject H. We conclude that the proportion of traffic accidents is not the same for each day of the vweek. O Do not reject H. We conclude that the proportion of traffic accidents is not the same for each day of the week. (b) Compute the percentage of traffic accidents occurring on each day of the week. (Round your answers to two decimal places.) Sunday Monday Tuesday Wednesday Thursday Friday Saturday What day has the highest percentage of traffic accidents? O unday O Monday O Tuesday O Wednesday O Thursday O Friday O Saturday

Test the claim about the population mean, µ, at the given level of significance using the given sample statistics. Claim: u#6000; a = 0.05; o = 331. Sample statistics: x = 6200, n = 47 Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: H#6000 B. Ho: µs 6000 Hai H2 6000 Ha: H# 6000 O C. Ho: H26000 O D. Ho: H = 6000 %3D Ha: H6000 Ha: u +6000 O E. Ho: H#6000 O F. Ho: µ#6000 Ha:H= 6000 Ha: H5 6000

Given the following hypothesis ( null and alternative ), test statistic, and sample size, find the appropriate P- Value: A. H0: p= .3,  p = .3 , Ha: p ≠ .3,  n = 31, *z= -2.70 ( choose one ) a. .0035 b. .0060 c. .0070 d. .0120   B.   H0: ? = .7, Ha: ? ≠ .7, n= 41, *t= -1.90 ( choose one )  a. .0287 b. .0320 c. .0574 d. .0640

Consider testing the hypotheses Ho: p 0.4 versus Hai p> 0.4. Four possible sample statistics, along with four possible p-values, are given. Match the statistics to their p-values. p= 0.42 p=0.38 p= 0.51 p= 0.46 D

Results from a civil servant exam are shown in the table to the right. Is there sufficient evidence to support the claim that the results from the test are​discriminatory? Use a 0.01 significance level.                           Passed    Failed   White candidates    17      14 Minority candidates 9        29   If: H0​: White and minority candidates have the same chance of passing the test. H1​: White and minority candidates do not have the same chance of passing the test.   answer the following:  **1.  Determine the test statistic.  x2 = ____ **2.  Determine the P-value of the test statistic. p= ____

Is there an association between grade level and whether the student makes their bed in the morning? To investigate, the principal at a large high school selects a random sample of 84 students and classifies them as being in ninth, tenth, eleventh, or twelfth grade, and whether they make their bed. He would like to determine if there is convincing evidence of an association. Let a = 0.05. What are the hypotheses for this test? O Ho: There is no association between grade level and whether the student makes their bed in the morning. Hạ: There is an association between grade level and whether the student makes their bed in the morning. O Ho: There is an association between grade level and whether the student makes their bed in the morning. Hạ: There is no association between grade level and whether the student makes their bed in the morning. O Ho: There is a difference in the distribution of grade level and whether the student makes their bed in the morning. Hạ: There is no difference in…

Use technology and a t-test to test the claim about the population mean at the given level of significance a using the given sample statistics. Assume the population is normally distributed Claim: u > 78; a = 0.01 Sample statistics: × = 79.3, s = 3.6, n = 28 What are the null and alternative hypotheses? Choose the correct answer below. O A. Ho: M = 78 H: 4*78 О c. Ha: u₴78 Hai n< 78 OB. H: 4478 H: M=78 O D. H: 4 s78 H: 4>78   What is the value of the standardized test statistic? The standardized test statistic is__ . (Round to two decimal places as needed.) What is the P-value of the test statistic? P-value=__(Round to three decimal places as needed.) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below.