Data Set 1 in Appendix B lists the white blood cell counts (1000 cells/µL) of 40 randomly selected women. The mean of those 40 values is 7.15 and the standard deviation is 2.28. Construct a 90% confidence interval estimate of the mean white blood cell count for the population of women. Does the confidence interval also serve as an estimate of the mean white blood cell count of men?
Answer to relevant QuestionsData Set 13 in Appendix B includes crash test measurements for small cars. The seven chest deceleration measurements have a mean of 42.7 g and a standard deviation of 5.6 g, where g is a force of gravity. Use the sample data ...In a survey of 1003 people, 59% said that they have never hesitated to give a handshake because they had a fear of germs. The survey results were reported in USA Today, and the survey was conducted by Wakefield Research for ...A recent Gallup survey of 1016 randomly selected adults showed that 21% of the respondents smoke. a. Express the original claim in symbolic form. b. Identify the null and alternative hypotheses. The test statistic of z = -1.75 is obtained when testing the claim that p = 1/3. Assume that the significance level is a = 0.05; use the given statement and find the P-value and critical values.20. The proportion of people who write with their left hand is equal to 0.1. Identify expressions that identify the type I error and the type II error that correspond to the given claim.
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