Use the confidence level and sample data to find a confidence interval for estimating the population µ. Round your answer to the same number of decimal places as the sample mean.
-37 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of $10.3$ pounds and a standard deviation of $2.4$ pounds. What is the $95 \%$ confidence interval for the true mean weight, $\mu$, of all packages received by the parcel service?
A) $9.4 \mathrm { lb }

Question

Use the confidence level and sample data to find a confidence interval for estimating the population µ. Round your answer to the same number of decimal places as the sample mean.
-37 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of $10.3$ pounds and a standard deviation of $2.4$ pounds. What is the $95 \%$ confidence interval for the true mean weight, $\mu$, of all packages received by the parcel service?
A) $9.4 \mathrm { lb } < \mu < 11.2 \mathrm { lb }$
B) $9.3 \mathrm { lb } < \mu < 11.3 \mathrm { lb }$
C) $9.5 \mathrm { lb } < \mu < 11.1 \mathrm { lb }$
D) $9.6 \mathrm { lb } < \mu < 11.0 \mathrm { lb }$

Quizplus · Accepted Answer

The Answer of Use the confidence level and sample data to find a confidence interval for estimating the population µ. Round your answer to the same number of decimal places as the sample mean.
-37 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of $10.3$ pounds and a standard deviation of $2.4$ pounds. What is the $95 \%$ confidence interval for the true mean weight, $\mu$, of all packages received by the parcel service?
A) $9.4 \mathrm { lb } < \mu < 11.2 \mathrm { lb }$
B) $9.3 \mathrm { lb } < \mu < 11.3 \mathrm { lb }$
C) $9.5 \mathrm { lb } < \mu < 11.1 \mathrm { lb }$
D) $9.6 \mathrm { lb } < \mu < 11.0 \mathrm { lb }$

Use the Confidence Level and Sample Data to Find a Confidence