Assume that a sample is used to estimate a population mean . Find the 95% confid

Question

Assume that a sample is used to estimate a population mean . Find the 95% confidence interval for a sample of size 39 with a mean of 19.4 and a standard deviation of 18.7. Enter your answer as an open-interval (i.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).

95% C.I. =

Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. License Assume that a sample is used to estimate a population mean . Find the 95% confidence interval for a sample of size 39 with a mean of 19.4 and a standard deviation of 18.7. Enter your answer as an open-interval (i.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).

95% C.I. =

Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Assume that a sample is used to estimate a population mean . Find the 95% confidence interval for a sample of size 39 with a mean of 19.4 and a standard deviation of 18.7. Enter your answer as an open-interval (i.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).

95% C.I. =

Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. License

Explanation / Answer

The statistical software output for this problem is:

One sample T summary confidence interval:
: Mean of population

95% confidence interval results:

Hence,

95% C.I. will be:

(13.3, 25.5)

Note - Please put the entire answer including brackets.

Mean Sample Mean Std. Err. DF L. Limit U. Limit 19.4 2.9943965 38 13.338161 25.461839

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