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Researchers were interested in the number of monitors and screens (televisions and computer monitors) owned within households in Canada

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Researchers were interested in the number of monitors and screens (televisions and computer monitors) owned within households in Canada. They collected data from a random sample of ten households. The number of monitors/screens for the ten households was as follows: 5    8    1    3    3    4    2    7    6    4

A.  Assuming that this variable is normally distributed, construct a 90% confidence interval for the population mean.

B. what does this confidence interval represent?

C. Which of the following would produce a confidence interval with a larger margin of error than the 90% confidence interval? Clearly circle only one response.

A. Sampling only 5 households instead of 10, because 5 are easier to manage. 

B. Sampling 5 households rather than 10, because a smaller sample size will result in a larger margin of error. 

C. Sampling 20 households rather than 10, because a larger sample size will result in a larger margin of error.

 D. Computing an 85% confidence interval rather than a 90% confidence interval, because a larger confidence interval will result in a larger margin of error.