Question 2 (2 points) A researcher is investigating quality perceptions of a product. He collects data...

 

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Question 2 (2 points) A researcher is investigating quality perceptions of a product. He collects data from 500 respondents and determines the average quality rating (on a 7-point scale) is 5.9. The standard deviation is .8. The researcher wants to operate at a 95% level of confidence. What if the researcher reconsiders his sample size and decides he wants to develop a confidence interval with a width of plus or minus .04 from the mean. What sample size would be required? 1) 875 2) 2732 3) 1537 4) 1353 Question 2 (2 points) A researcher is investigating quality perceptions of a product. He collects data from 500 respondents and determines the average quality rating (on a 7-point scale) is 5.9. The standard deviation is .8. The researcher wants to operate at a 95% level of confidence. What if the researcher reconsiders his sample size and decides he wants to develop a confidence interval with a width of plus or minus .04 from the mean. What sample size would be required? 1) 875 2) 2732 3) 1537 4) 1353

Answer rating: 100% (QA)

95 confidence interval for mean given by X 196 3 OR X19... View the full answer