Use the confidence level and sample data to find a confidence interval for estimating the population µ.
-34 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of $25.9$ pounds and a standard deviation of $3.8$ pounds. What is the 95 percent confidence interval for the true mean weight, $\mu$, of all packages received by the parcel service?
A) $24.4

Question

Use the confidence level and sample data to find a confidence interval for estimating the population µ.
-34 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of $25.9$ pounds and a standard deviation of $3.8$ pounds. What is the 95 percent confidence interval for the true mean weight, $\mu$, of all packages received by the parcel service?
A) $24.4 < \mu < 27.4$
B) $24.2 < \mu < 27.6$
C) $24.6 < \mu < 27.2$
D) $24.8 < \mu < 27.0$

Quizplus · Accepted Answer

The Answer of Use the confidence level and sample data to find a confidence interval for estimating the population µ.
-34 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of $25.9$ pounds and a standard deviation of $3.8$ pounds. What is the 95 percent confidence interval for the true mean weight, $\mu$, of all packages received by the parcel service?
A) $24.4 < \mu < 27.4$
B) $24.2 < \mu < 27.6$
C) $24.6 < \mu < 27.2$
D) $24.8 < \mu < 27.0$

Use the Confidence Level and Sample Data to Find a Confidence