Question: solve this using textbook Construct a 90% confidence interval to estimate the population mean using the accompanying data. What assumptions need to be made to

solve this using textbook

Construct a 90% confidence interval to estimate the population mean using the accompanying data. What assumptions need to be made to construct this interval? x=70 o=12 n=12 What assumptions need to be made to construct this interval'? () A. The sample size is less than 30. (.) B. The population is skewed to one side. () C. The population must be normally distributed. (2) D. The population mean will be in the confidence interval

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