Question 1 of 10 For which of these audience groups would Long's speech probably have been
effective?
A. Listeners who are wealthy and able to save money for their
children's futures
B. Listeners who are planning to run for elected office and are in the
process of generating campaign funds
C. Listeners who have found themselves in dire financial
circumstances
D. Listeners who make a comfortable living but who would be fine
with making a bit more money
SUBMIT
No

The difference of sample means of two populations is 55.4, and the standard deviation of the difference of sample means is 28.1. which statement is true if we are testing the null hypothesis at the 95% confidence level? a. the difference of the two means is significant, so the null hypothesis must be rejected. b. the difference of the two means is significant, so the null hypothesis must be accepted. c. the difference of the two means is not significant, so the null hypothesis must be rejected. d. the difference of the two means is not significant, so the null hypothesis must be accepted.