ni pi (1-pi)2 10 and n2 Pd 1-P) 10. In addition, than 5% of the population size.
ID: 3059365 • Letter: N
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ni pi (1-pi)2 10 and n2 Pd 1-P) 10. In addition, than 5% of the population size. Then we follow the preceding steps We must verify the requirements to perform the sample must be a simple random sample or the resalt hypothesis test. That is, the of a randied enperiment and Soution First we verify that the requirements are satisfed. The samples are indru- 4) 4) A study was conducted to determine if the salaries of librarians from two neighboring cities were equal. A sample of 15 librarians from each city was randomly selected. The mean fron the first city was $28,900 with a standard deviation of S2000. The mean from the second was sso,300 with a standard deviation of S2100. Construct a 95% confidence interval fr ul·2- B) (-4081, 597) G) (-2054, 238) D) (-2571, 567) A) (-3125, 325) 5) A random sample of 100 students at a high school was asked whether they would ask 5) their father or mother for help with a financial problem. A second sample of 100 different students was asked the same question regarding a dating problem. If 43 students in the first sample and 47 students in the second sample replied that they turned to their mother rather than their father for help, test the hypothesis of no difference in the proportions. Use a-001. 7 100 TO0 200 0.45(1-0.45) o45l--u5) oo 1oo -57-0% t a retail store, 121 male employees were randomly selected and it was found that their onthly income had a standard deviation of $354 27. For 61 female employees, the andard deviation was $255.15. Test the hypothesis that variance of monthly incomes is ifferent for male employees than it is for female employees. Use a 0.02. Assume the mples were randomly selected from normal populations.Explanation / Answer
ni pi (1-pi)2 10 and n2 Pd 1-P) 10. In addition, than 5% of the population size. Then we follow the preceding steps We must verify the requirements to perform the sample must be a simple random sample or the resalt hypothesis test. That is, the of a randied enperiment and Soution First we verify that the requirements are satisfed. The samples are indru- 4) 4) A study was conducted to determine if the salaries of librarians from two neighboring cities were equal. A sample of 15 librarians from each city was randomly selected. The mean fron the first city was $28,900 with a standard deviation of S2000. The mean from the second was sso,300 with a standard deviation of S2100. Construct a 95% confidence interval fr ul·2- B) (-4081, 597) G) (-2054, 238) D) (-2571, 567) A) (-3125, 325) 5) A random sample of 100 students at a high school was asked whether they would ask 5) their father or mother for help with a financial problem. A second sample of 100 different students was asked the same question regarding a dating problem. If 43 students in the first sample and 47 students in the second sample replied that they turned to their mother rather than their father for help, test the hypothesis of no difference in the proportions. Use a-001. 7 100 TO0 200 0.45(1-0.45) o45l--u5) oo 1oo -57-0% t a retail store, 121 male employees were randomly selected and it was found that their onthly income had a standard deviation of $354 27. For 61 female employees, the andard deviation was $255.15. Test the hypothesis that variance of monthly incomes is ifferent for male employees than it is for female employees. Use a 0.02. Assume the mples were randomly selected from normal populations.Related Questions
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