The sample mean =0.0795,the sample size =24,the population standard deviation =0.006and the confidence level =99%. Assume the underlying population is normally distributed. Fill in the blanks. (Give your answers to four decimal places.) The associated confidence interval for the population mean is ( __ , __ )

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------The sample mean =17.6 ,the sample size =32 ,the population standard deviation =10.27 ,and the confidence level =95%.

Fill in the blanks. (Give your answers to four decimal places.)

The associated confidence interval for the population mean is ( __, __).

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The population standard deviation is 0.55, the bound on the error of estimation is 0.001, and the confidence level is 98%. Fill in the blank. (Give your answer as a whole number). The value for the sample sizennecessary to satisfy these requirements is___.