n Exercises 9–16, (a) write the claim mathematically and identify and (b) find the critical value(s) and identify the rejection region(s), (c) find the standardized test statistic z, (d) decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim. If convenient, use technology to find the standardized test statistic. A research center claims that at least 40% of U.S. adults think the Census count is accurate. In a random sample of 600 U.S. adults, 35% say that the Census count is accurate. At ⍶ = 0.02 is there enough evidence to reject the center’s claim?

What is the conclusion of the independence​ test?     A. Reject H0. The data do not provide sufficient evidence of an association.   B. Do not reject H0. The data provide sufficient evidence of an association.   C. Do not reject H0. The data do not provide sufficient evidence of an association.   D. Reject H0. The data provide sufficient evidence of an association

A. Determine the test statistic B. Determine the P-value C.reject or fail to reject H0 D. Determine if the results suggest that all of child booster seats meet the specified requirement.

1. Name your alternative and null hypotheses. b) Be sure and provide the mean for each group, standard error and significance levels. c) Write out a COMPETE statement as to and whether you accept or reject the null hypothesis.     The federal government instituted a training program to help participants increase their monthly income. The Department’s inspector general wished to evaluate the program’s success or failure.   Monthly income before the training program Monthly income after the training program 1363 1373 1482 1492 1579 1589 1643 1653 1752 1762 1848 1858 1927 1907 2055 2035 2143 2053 2237 2247 1752 1782 1752 1762 1643 1653 1848 1858 1752 1762

a) A researcher has asked members of various occupations if they favor or oppose increasing welfare benefits at the taxpayer's expense.  Treating occupation as a nominal-level independent variable, use the following data to test the null hypothesis that occupation is not related to attitudes toward increased welfare benefits.  Use α = .05.                          Occupational Level           Favors        Opposes                                Professional                    46                  97                                Clerical                           81                143                                Skilled                             93                  88                                Semiskilled                   241                136                                Unskilled                       131                 38                                    Total                          592                502 B) Compute and interpret an appropriate measure of…

a) Clearly label and state the appropriate null and alternative hypotheses.b) State your evidence-based conclusion in a well written contextual sentence for a general audience– be sure your conclusion is not about rejecting or not rejecting hypotheses as a general audience2. A newspaper report states that the mean age of commercial jets in the United States is 14 years.An executive of AirJet, a large airline company, claims that the mean age of the planes in his company is lower. He selects a sample of 36 planes and find the mean age to be 11.8 years.Assuming his planes is the same as the national average the chance of this outcome is 0.005.

a. Set up null and alternative hypotheses to try to determine whether there is a difference in ad impact between general TV viewing and VOD viewing. Conduct the hypothesis test defined in (a), using the 0.05 level of significance.