تم الحل ✓
categoryإحصاء
schoolبكالوريوس
event_available2026-07-15
السؤال
Transcribed Image Text:
Question 19
In 2011, a U.S. Census report determined that 59% of college students are working students. A researcher
thinks this percentage has changed and surveys 194 college students. The researcher reports that 101 of the
194 are working students. Is there evidence to support the researcher's claim at the 1% significance level?
a. Determine the null and alternative hypotheses.
Ho-P
H₁: p
(Select the correct symbol and enter the value.)
b. Determine the test statistic. Round to two decimal places.
z=
c. Find the p-value. Round to four decimal places.
p-value
d. Are the results statistically significant?
Fail to reject the null hypothesis.
Reject the null hypothesis.
e. Write the conclusion.
There is not sufficient evidence to support the claim that the percentage of working college
students has changed.
There is sufficient evidence to support the claim that the percentage of working college students
has changed.
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