Question

Do male college students spend more time than female college
students using a computer? This was one of the questions
investigated by the authors of an article. Each student in a random
sample of 46 male students at a university in England and each
student in a random sample of 38 female students from the same
university kept a diary of how he or she spent time over a
three-week period.

For the sample of males, the mean time spent using a computer per
day was 45.6 minutes and the standard deviation was 63.3 minutes.
For the sample of females, the mean time spent using a computer was
39.3 minutes and the standard deviation was 57.3 minutes. Is there
convincing evidence that the mean time male students at this
university spend using a computer is greater than the mean time for
female students? Test the appropriate hypotheses using

*α* = 0.05.

(Use a statistical computer package to calculate the
*P*-value. Use *μ*_{males} −
*μ*_{females}.Round your test statistic to two
decimal places, your df down to the nearest whole number, and your
*P*-value to three decimal places.)

t |
= |

df | = |

P-value |
= |

Answer #1

Do male college students spend more time than female college
students using a computer? This was one of the questions
investigated by the authors of an article. Each student in a random
sample of 46 male students at a university in England and each
student in a random sample of 38 female students from the same
university kept a diary of how he or she spent time over a
three-week period.
For the sample of males, the mean time spent...

Do male college students spend more time than female college
students using a computer? This was one of the questions
investigated by the authors of an article. Each student in a random
sample of 46 male students at a university in England and each
student in a random sample of 38 female students from the same
university kept a diary of how he or she spent time over a
three-week period.
For the sample of males, the mean time spent...

Do female college students spend more time than male college
students watching TV? This was one of the questions investigated by
the authors of an article. Each student in a random sample of 46
male students at a university in England and each student in a
random sample of 38 female students from the same university kept a
diary of how he or she spent time over a three-week period.
For the sample of males, the mean time spent watching...

Do female college students spend more time than male college
students watching TV? This was one of the questions investigated by
the authors of an article. Each student in a random sample of 46
male students at a university in England and each student in a
random sample of 38 female students from the same university kept a
diary of how he or she spent time over a three-week period.
For the sample of males, the mean time spent watching...

Each person in random samples of 207 male and 283 female working
adults living in a certain town in Canada was asked how long, in
minutes, his or her typical daily commute was. (Use a statistical
computer package to calculate the P-value. Use
?males ? ?females. Round
your test statistic to two decimal places, your df down to the
nearest whole number, and your P-value to three decimal
places.)
Males
Females
Sample
size
x
s
Sample
size
x
s
207...

A student set out to see if female students spend more
time studying than male students. He randomly surveyed 30 females
and 30 males and asked them how much time they spend studying, on
average, per day. The data is obtained is shown below.
H0: mean study time for females = mean study time for
males
H1: mean study time for females > mean study time for
males
Analyze the data with the appropriate test using a 10%
significance level....

A student set out to see if female students spend more
time studying than male students. He randomly surveyed 30 females
and 30 males and asked them how much time they spend studying, on
average, per day. The data is obtained is shown below.
H0: mean study time for females = mean study time for
males
H1: mean study time for females > mean study time for
males
Could you have made an error in your decision? If so,
what?...

10. The paper "Facebook Use and Academic Performance Among
College Students: A Mixed-Methods Study with a Multi-Ethnic
Sample"† describes a survey of a sample of 66 male students and a
sample of 195 female students at a large university in Southern
California. The authors of the paper believed that these samples
were representative of male and female college students in Southern
California. For the sample of males, the mean time spent per day on
Facebook was 102.31 minutes. For the...

A
college student is interested in whether there is a difference
between male and female students in the amount of time they spend
studying each week. The student gathers information from a random
sample of male and female students on campus. The amounts of time
spent studying are normally distributed. The data are:
Male
27
25
19
10
16
22
14
Female
25
29
18
23
20
15
19
A. What statistical test should be used do analyze these
data?...

A study compares students who use a website and students who do
not use the website. In addition to asking the students in the
samples about GPA, each student was also asked how many hours he or
she spent studying each day. The two samples (141 students who were
users of the website and 68 students who were not users of the
website) were independently selected from students at a large,
public Midwestern university. Although the samples were not
selected...

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