### Free Educational Resources

• > FOR A GIVEN N, THE INTERVAL THAT BOUNDS THE POPULATION MEAN
+

# FOR A GIVEN N, THE INTERVAL THAT BOUNDS THE POPULATION MEAN

##### Rating:
(0)
Author: Christine Farr
##### Description:

http://theperfecthomework.com/for-a-given-n-the-interval-that-bounds-the-population-mean-at-the-99-confidence-level-is-____-that-which-bounds-the-population-mean-at-the-95-confidence-level/

1. For a given N, the interval that bounds the population mean at the 99% confidence level is ____ that which bounds the population mean at the 95% confidence level
A. equal to
B. greater than
C. less than
D. can't be determined

2. When using the t test, we reject H0 ____.A. if tobt£ tcrit
B. if | tobt | ³ | tcrit |
C. if | tobt | £ | tcrit |
D. if tobt³ tcrit
3. Exhibit 13-1A 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 ____.A. tobt = -2.07
B. tobt = +3.07
C. tobt = -1.32
D. tobt = +0.32
4. Exhibit 13-1A 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 = ____.

(more)
##### Try a College Course Free

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

No credit card required

26 Sophia partners guarantee credit transfer.

226 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 21 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial