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greencamel55Lv1
9 Sep 2020
A simple random sample of 70 items resulted in a sample mean of 90. The population standard deviation is o 10. (a) Compute the 95% confidence interval for the population mean. (Round your answers to two decimal places.) to (b) Assume that the same sample mean was obtained from a sample of 140 items. Provide a 95% confidence interval for the population mean. (Round your answers to two decimal places.) to (c) What is the effect of a larger sample size on the interval estimate? A larger sample size does not change the margin of error. A larger sample size provides a larger margin of error. A larger sample size provides a smaller margin of error.
A simple random sample of 70 items resulted in a sample mean of 90. The population standard deviation is o 10. (a) Compute the 95% confidence interval for the population mean. (Round your answers to two decimal places.) to (b) Assume that the same sample mean was obtained from a sample of 140 items. Provide a 95% confidence interval for the population mean. (Round your answers to two decimal places.) to (c) What is the effect of a larger sample size on the interval estimate? A larger sample size does not change the margin of error. A larger sample size provides a larger margin of error. A larger sample size provides a smaller margin of error.
rahulv336699Lv10
25 Nov 2021
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