Question
In: Statistics and Probability
A sociologist believes that for people under the age of 30, men sleep longer per night...
A sociologist believes that for people under the age of 30, men
sleep longer per night on the weekend than women. 26 people were
surveyed. Test at alpha =5%. The following summary statistics were
determined from the sample.
| Men | Women | |
| Mean | 11.45 | 10.18 |
| Standard deviation | 1.95 | 2.81 |
| N | 12 | 14 |
a) State the Null and Alternate Hypothesis in symbols and in
words. (3pts)
b) Calculate the expected results for the hypothesis test sampling
distribution, assuming the Null
Hypothesis is true. (i.e., name and graph of the sampling
distribution, mean and standard error,
ASSUME POOLED STANDARD DEVIATIONS) (3pts)
c) Identify the standard distribution that best approximates the
sampling distribution. (1pts)
d) Formulate the decision rule(you can use either critical test
scores or p-values) (3pts)
e) Determine the statistical sample results, i.e., the differences
between the sample means, the pooled standard
deviations, the standard error, the test statistic, degrees of
freedom and p-value. (16pts)
f) Determine the conclusion in terms of the Null and Alternate
Hypotheses. Do the sample results indicate that
the sociologist’s claim is supported at alpha= 5%? (4pts)
Solutions
orchestra answered 1 year agoRelated Solutions
A survey was conducted to determine whether hours of sleep per night are independent of age....
A survey was conducted to determine whether hours of sleep per
night are independent of age. A sample of individuals was asked to
indicate the number of hours of sleep per night with categorical
options: fewer than 6 hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8
hours or more. Later in the survey, the individuals were asked to
indicate their age with categorical options: age 39 or younger and
age 40 or older. Sample data follow.
Hours...
A survey was conducted to determine whether hours of sleep per night are independent of age....
A survey was conducted to determine whether hours of sleep per
night are independent of age. A sample of individuals was asked to
indicate the number of hours of sleep per night with categorical
options: fewer than 6 hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8
hours or more. Later in the survey, the individuals were asked to
indicate their age with categorical options: age 39 or younger and
age 40 or older. Sample data follow.
Hours...
A survey was conducted to determine whether hours of sleep per night are independent of age....
A survey was conducted to determine whether hours of sleep per
night are independent of age. A sample of individuals was asked to
indicate the number of hours of sleep per night with categorical
options: fewer than 6 hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8
hours or more. Later in the survey, the individuals were asked to
indicate their age with categorical options: age 39 or younger and
age 40 or older. Sample data follow.
Hours...
A survey was conducted to determine whether hours of sleep per night are independent of age....
A survey was conducted to determine whether hours of sleep per
night are independent of age. A sample of individuals was asked to
indicate the number of hours of sleep per night with categorical
options: fewer than 6 hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8
hours or more. Later in the survey, the individuals were asked to
indicate their age with categorical options: age 39 or younger and
age 40 or older. Sample data follow.
Hours...
A survey was conducted to determine whether hours of sleep per night are independent of age....
A survey was conducted to determine whether hours of sleep per
night are independent of age. A sample of individuals was asked to
indicate the number of hours of sleep per night with categorical
options: fewer than 6 hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8
hours or more. Later in the survey, the individuals were asked to
indicate their age with categorical options: age 39 or younger and
age 40 or older. Sample data follow.
Hours...
A survey was conducted to determine whether hours of sleep per night are independent of age....
A survey was conducted to determine whether hours of sleep per
night are independent of age. A sample of individuals was asked to
indicate the number of hours of sleep per night with categorical
options: fewer than 6 hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8
hours or more. Later in the survey, the individuals were asked to
indicate their age with categorical options: age 39 or younger and
age 40 or older. Sample data follow.
Hours...
A survey was conducted to determine whether hours of sleep per night are independent of age. A sample of individuals was asked to indicate the number of hours of sleep per night with categorical option
A survey was conducted to determine whether hours of sleep per night are independent of age. A sample of individuals was asked to indicate the number of hours of sleep per night with categorical options: fewer than 6 hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8 hours or more. Later in the survey, the individuals were asked to indicate their age with categorical options: age 39 or younger and age 40 or older. Sample data follow....
A sociologist researching the link between race and inequality believes that younger people and/or people with...
A sociologist researching the link between race and inequality
believes that younger people and/or people with more education
generally have more tolerant views. To test this hypothesis, the
sociologist gathers a random sample of 10 Caucasians ranging in age
from teenager to elderly and asks them for their beliefs about
African-Americans on a 10-point scale (1 representing acceptance of
negative beliefs, 10 representing acceptance of positive beliefs),
and number of completed years in school (including college if
applicable). Check to...
The National Sleep Foundation used a survey to determine whether hours of sleep per night are...
The National Sleep Foundation used a survey to determine whether
hours of sleep per night are independent of age (Newsweek, January
19, 2004). A sample of individuals was asked to indicate the number
of hours of sleep per night with categorical options: fewer than 6
hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8 hours or more. Later
in the survey, the individuals were asked to indicate their age
with categorical options: age 39 or younger and age...
Sleep: Assume the general population gets an average of 7 hours of sleep per night. You...
Sleep: Assume the general population gets an
average of 7 hours of sleep per night. You randomly select 45
college students and survey them on their sleep habits. From this
sample, the mean number of hours of sleep is found to be 6.89 hours
with a standard deviation of 0.25 hours. You claim that college
students get less sleep than the general population. That is, you
claim the mean number of hours of sleep for all college students is
less...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- 9 Q10: Show an example of a Corporate Balance Sheet: Assets Liabilities ---------------------------------- ---------------------------------------
- Q14: Show Four (4) Intrinsic Valuation Methods for the following (Equations/Definitions): Give and Example!!! Perpetuity Model:...
- Consider an old-fashioned bicycle with a small wheel of radius 0.51 m and a large wheel...
- A taxi driver in Manhattan is sitting in his car passing time until someone needs a...
- Freedom Corporation acquired a fixed asset for $170,000. Its estimated life at time of purchase was...
- What is AN4 pin on BAYSYS 3 board? i know there is AN0-AN3. I cannot locate...
- Q13: Show Calculations/Definitions for the following Financial Ratios/Equations: Price-to-Earning (P/E) Ratio: Earnings Per Share (EPS): Weighted...
ADVERTISEMENT