Assume that a sample is used to estimate a population mean . Find the 95% confid
ID: 3350636 • Letter: A
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