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In Exercises 5–20, conduct the hypothesis test and provide the test statistic and the P-value and for critical value, and state the conclusion.
8. Bias in Clinical Trials? Researchers investigated the issue of race and equality of access to clinical trials. The following table shows the population distribution and the numbers of participants in clinical trials involving lung cancer (based on data from “Participation in Cancer Clinical Trials,” by Murthy, Krumholz, and Gross, Journal of the American Medical Association, Vol. 291, No. 22). Use a 0.01 significance level to test the claim that the distribution of clinical trial participants fits well with the population distribution. Is there a race/ethnic group that appears to be very underrepresented?
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- 9arrow_forwardPeople were asked their gender and if the preferred Coke or Pepsi. The results are summarized in the table below. Test the claim that gender and soda preference are independent. Please provide the critical value, test statistic and conclusion. Coke Pepsi Male 53 26 Female 58 29arrow_forwardA recent article in the Skyline College newspaper stats that that 51% of college students work full-time. You obtain a random sample of 235 Skyline College students and 143 of them work full-time. Test the newspaper's claim at the 0.05 significance level Ho:p = 0.51 Ha:p + 0.51 What is the test statistic? (Report answer accurate to four decimal places.) test statistic = What is the p-value? (Report answer accurate to four decimal places.) p-value : %3Darrow_forward
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