# Question

The 2006 General Social Survey asked respondents, “If ever married, how old were you when you ﬁrst married?” The results are summarized in the MINITAB output that follows:

(a) Use the summary to determine the point estimate of the population mean and margin of error for the conﬁdence interval.

(b) Interpret the conﬁdence interval.

(c) Verify the results by computing a 95% conﬁdence interval with the information provided.

(a) Use the summary to determine the point estimate of the population mean and margin of error for the conﬁdence interval.

(b) Interpret the conﬁdence interval.

(c) Verify the results by computing a 95% conﬁdence interval with the information provided.

## Answer to relevant Questions

A question on the 2006 General Social Survey was this: “About how many times did you engage in intercourse during the month?” The question was only asked of participants who had previously indicated that they had engaged ...The data sets represent simple random samples from a population whose mean is 100. (a) Compute the sample mean of each data set. (b) For each data set, construct a 95% conﬁdence interval about the population mean. (c) What ...The mean age of the 43 presidents of the United States (as of 2011) on the day of inauguration is 54.6 years, with a standard deviation of 6.3 years. A researcher constructed a 95% conﬁdence interval for the mean age of ...In a random sample of 40 felons convicted of aggravated assault, it was determined that the mean length of sentencing was 54 months, with a standard deviation of 8 months. Construct and interpret a 95% conﬁdence interval ...Among all credit cards issued, the proportion of cards that result in default was 0.13 in 2010. A credit analyst with Visa believes this proportion is different today. (a) Determine the null and alternative hypotheses, (b) ...Post your question

0