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How many computers In a simple random sample of 195 households the sample mean number...

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How many computers In a simple random sample of 195 households the sample mean number of personal computers was 2 82 Assume the population standard deviation is a 0 53 Part 1 of 4 a Construct a 99 8 confidence interval for the mean number of personal computers Round the answer to at least two decimal places A 99 8 confidence interval for the mean number of personal computers is 2 703 2 937 Part 1 4 Part 2 of 4 b If the sample size were 165 rather than 195 would the margin of error be larger or smaller than the result in part a Explain The margin of error would be Choose one since Choose one in the sample size will Choose one the standard error Espa ol

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