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Maths Statistics Four Problems




Question;1. In a 3M privacy filters poll, 806 adults were asked to identify their favorite seats when they fly, and 492 of them chose a window seat. Use a 0.01 significance level to test the claim that the majority of adults prefer window seats when they fly.;2. Assume a significance level of a=0.05. Claim: women have heights with a standard deviation equal to 5.00 cm. The hypothesis test results in a p-value of 0.0055.;3. Identify a: if the test is 2 tailed, left or right tailed. B. What is the test statistic. C. What is the P-value. D. What is the null hypothesis and what do you conclude. E. What is the final conclusion;4. Listed below are the ages of randomly selected race car drivers. Use a 0.05 significance level to test the claim that the mean age of all race car drivers is greater than 30 years.;32, 32, 33, 33, 41, 29, 38, 32, 33, 23, 27, 45, 52, 29, 25


Paper#62292 | Written in 18-Jul-2015

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