1. A global research study found that the majority of? today's working women would prefer a better? work-life balance to an increased salary. One of the most important contributors to? work-life balance identified by the survey was? "flexibility," with
45?%
of women saying that having a flexible work schedule is either very important or extremely important to their career success. Suppose you select a sample of
100
working women. Answer parts? (a) through? (d).
d. If a sample of
400
is? taken, how does this change your answers to? (a) through? (c)?
The probability that in the sample fewer than
52?%
say that having a flexible work schedule is either very important or extremely important to their career success is
enter your response here.
The probability that in the sample between
39?%
and
52?%
say that having a flexible work schedule is either very important or extremely important to their career success is
enter your response here.
The probability that in the sample more than
46?%
say that having a flexible work schedule is either very important or extremely important to their career success is
enter your response here.
2.
According to a recent? report,
45?%
of college student internships are unpaid. A recent survey of
100
college interns at a local university found that
57
had unpaid internships.
a. Use the? five-step p-value approach to hypothesis testing and a
0.05
level of significance to determine whether the proportion of college interns that had unpaid internships is different from
0.45.
b. Assume that the study found that
48
of the
100
college interns had unpaid internships and repeat? (a). Are
the conclusions the? same?
What is the test? statistic?
What is the? p-value?
The? p-value is
enter your response here.
?(Round to three decimal places as? needed.)
Part 4
What is the final? conclusion?
?
Do not reject
Reject
the null hypothesis. There
?
is
is not
sufficient evidence that the proportion of college interns that had unpaid internships is
?
greater thangreater than
different fromdifferent from
less thanless than
0.45
because the? p-value is
?
less thanless than
greater thangreater than
the level of significance.
Part 5
b. Assume that the study found that
48
of the
100
college interns had unpaid internships and repeat? (a). What is the test? statistic?
ZSTAT=enter your response here
?(Round to two decimal places as? needed.)
Part 6
What is the? p-value?
The? p-value is
enter your response here.
?(Round to three decimal places as? needed.)
Part 7
What is the final? conclusion?
The result is
?
the same as
different from
part? (a).
?
Reject
Do not reject
the null hypothesis. There
?
is
is not
sufficient evidence that the proportion of college interns that had unpaid internships is
?
greater thangreater than
less thanless than
different fromdifferent from
0.45
because the? p-value is
?
less thanless than
greater thangreater than
the level of significance.