Sampling distributions help us test hypotheses about means by ...

[asan beg]

Sampling distributions help us test hypotheses about means by
 
  a. telling us exactly what the population mean is.
  b. telling us how variable the population is.
  c. telling us what kinds of means to expect if the null hypothesis is true.
  d. telling us what kinds of means to expect if the null hypothesis is false.

Question 2

The sampling distribution of the mean that you saw in the text
 
  a. resembled a normal distribution.
  b. was very skewed.
  c. had a mean that was unusually large relative to the population mean.
  d. had little to do with the population mean.

[blakcmamba]

Answer to Question 1

C

Answer to Question 2

A

[asan beg]

Excellent

[daiying98]

TYSM