Power: A test of Ho: p = 100 versus If f. p > 100 will be made at a significance level of a = 0.01. The population standard deviation is a = 50 and the sample size is n = 75. Find the power of the test against the alternative pi = 110. 6. More power: Refer to Exercise 5. If the test is made at the a = 0.05 level with the same sample size, would the power be greater than or less than in Exercise 5? Explain.
Answer to relevant QuestionsHousehold size: For the past several years. The mean number of people in a household has been declining. A social scientist believes that in a certain large city, the mean number of people per household is less than 2.5. To ...Why don't we need to know the population standard deviation when performing a test about a population proportion? The following 11-84 Plus calculator display presents a 95% confidence interval for the difference between two means. The sample sizes are ni = 85 and n2 = 71. a. Find the point estimate of PI — P2. b. How many degrees of ...Recovery time from surgery: A new postsurgical treatment is being compared with a standard treatment. Seven subjects receive the new treatment, while seven others (the controls) receive the standard treatment. The recovery ...The following MINITAB output presents a 95% confidence interval for the difference between two mean a. Is this a left-tailed test, a right-tailed test, or a two-tailed test? b. How many degrees of freedom did the calculator ...
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