Author Question: If the sample standard deviation is 10.5 and the sample mean is 48 based on a study with a sample ... (Read 87 times)

Pineappleeh · **on:** Jun 28, 2018

If the sample standard deviation is 10.5 and the sample mean is 48 based on a study with a sample size of 120, the 95 percent confidence interval about the mean is between approximately ____.
a. 44.37 and 51.63
b. 46.12 and 49.88
c. 47.88 and 48.12
d. 40.0 and 50.0

Question 2

Top-down and bottom-up perspectives are available to assess the attractiveness of each segment in terms of its potential for targeting, but only the top-down perspective should be considered.
a. True
b. False
Indicate whether the statement is true or false