In the sign test, if H0 is false, then Preal ____.
equals 0.05
equals 0.50
equals 1 - 0.05
does not equal 0.50

Question 32 1 pts <i>P</i><sub>null</sub> ____.<br>
Pnull ____.

never equals 0.50
always equals 0.50
equals 0.50, ³ 0.50, or £ 0.50, depending on H1
Question 33 1 pts "State of Reality" means ____.<br>
"State of Reality" means ____.

Question 34 1 pts The higher the power, ____.<br>
The higher the power, ____.

Question 35 1 pts "Nonsignificant results" means ____.<br>
"Nonsignificant results" means ____.
H0 was unable to be rejected
the power of the experiment was too low
H1 was wrong
H1 was right

Question 36 1 pts The sampling distribution of <i>t</i> depends on ____.<br>

Question 37 1 pts The 95% confidence interval arrived at from a particular experiment is 72-79. This
means that ____.<br>
The 95% confidence interval arrived at from a particular experiment is 72-79. This means that ____.

Question 38 1 pts As the df increases, the <i>t</i> distribution ____.<br>

Question 39 1 pts Skip to question text.
Exhibit 13-1

A researcher believes that women today weigh less than in previous years. To investigate this belief, he
randomly samples 41 adult women and records their weights. The scores have a mean of 111 lbs. and a
standard deviation of 12.4. A local census taken several years ago shows the mean weight of adult
women was 115 lbs.
Refer to Exhibit 13-1. The obtained value of the appropriate statistic for testing H0 is ____.
tobt = -2.07
tobt = +2.07
tobt = -0.32
tobt = +0.32

Question 40 1 pts Skip to question text.
Exhibit 13-1
A researcher believes that women today weigh less than in previous years. To investigate this belief, he
randomly samples 41 adult women and records their weights. The scores have a mean of 111 lbs. and a
standard deviation of 12.4. A local census taken several years ago shows the mean weight of adult
women was 115 lbs.
Refer to Exhibit 13-1. The df for determining tcrit = ____.

Question 41 1 pts Skip to question text.
Exhibit 13-1