# Question: The following results are for independent random samples taken from

The following results are for independent random samples taken from two populations.

a. What is the point estimate of the difference between the two population means?

b. What is the degrees of freedom for the t distribution?

c. At 95% confidence, what is the margin of error?

d. What is the 95% confidence interval for the difference between the two population means?

a. What is the point estimate of the difference between the two population means?

b. What is the degrees of freedom for the t distribution?

c. At 95% confidence, what is the margin of error?

d. What is the 95% confidence interval for the difference between the two population means?

**View Solution:**## Answer to relevant Questions

The average standard deviation for the annual return of large cap stock mutual funds is 18.2% (The Top Mutual Funds, AAII, 2004). The sample standard deviation based on a sample of size 36 for the Vanguard PRIMECAP mutual ...Investors commonly use the standard deviation of the monthly percentage return for a mutual fund as a measure of the risk for the fund; in such cases, a fund that has a larger standard deviation is considered more risky than ...Initial public offerings (IPOs) of stocks are on average underpriced. The standard deviation measures the dispersion, or variation, in the underpricing-overpricing indicator. A sample of 13 Canadian IPOs that were ...The grade point averages of 352 students who completed a college course in financial accounting have a standard deviation of .940. The grade point averages of 73 students who dropped out of the same course have a standard ...Test the following hypotheses by using the X2 goodness of fit test. A sample of size 200 yielded 60 in category A, 120 in category B, and 20 in category C. Use α = .01 and test to see whether the proportions are as stated ...Post your question