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Good Afternoon, I have questions that need answers, please. 1.) Parts 1-4? How many computers? In a simple random sample of 135 households, the sample

Good Afternoon, I have questions that need answers, please.
1.) Parts 1-4?
How many computers? In a simple random sample of 135 households, the sample mean number of personal computers was 1.63. Assume the population standard deviation is o = 0.36. (a) Construct an 80% condence interval for the mean number of personal computers. Round the answer to at least two decimal places. An 80% condence interval for the mean number of personal computers is [:1

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