A student at a four-year college claims that mean enrollment at four-year colleges is higher than at two- year colleges in the United States. Two surveys are conducted. Of the 35 four-year colleges surveyed, the mean enrollment was 5,466 with a standard deviation of 8,191. Of the 35 two-year colleges surveyed, the mean enrollment was 5,068 with a standard deviation of 4,777. Test the student's claim at the 0.10 significance level. a) The null and alternative hypothesis would be: OH:LF=UT Η : με > με O Ho PF PT H₁: PF PT O Ho μFμT Η : με 7 μπ = O Ho PF PT H₁ PF PT O Ho μFμT Η : με < μτ = O Ho PF PT H₁: PF PT b) Determine the test statistic. Round to two decimals. t c) Find the p-value and round to 4 decimals. P = d) Make a decision. O Fail to reject the null hypothesis O Reject the null hypothesis e) Write the conclusion. O There is not sufficient evidence to support the claim that enrollement is high at a four-year college than a two-year college. There is sufficient evidence to support the claim that enrollement is high at a four-year college than a two-year college. The average student loan debt is reported to be $25,235. A student belives that the student loan debt is higher in her area. She takes a random sample of 100 college students in her area and determines the mean to be $27,524 and the standard devition to be $6000. Is there sufficient evidence to support the student' claim at a 5% significance level? a) Determine the null and alternative hypotheses. Ho: Ha: Select an answer (Put in the correct symbol and value) b) Determine the test statistic. Round to two decimals. t= c) Find the p-value. Round to 4 decimals. P-value = d) Make a decision. O Fail to reject the null hypothesis O Reject the null hypothesis e) Write the conclusion. O There is not sufficient evidence to support the claim that student loan debt is higher than $25,235. O There is sufficient evidence to support the claim that student loan debt is higher than $25,235.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
Question

Answer the questions in the images.

A student at a four-year college claims that mean enrollment at four-year colleges is higher than at two-
year colleges in the United States. Two surveys are conducted. Of the 35 four-year colleges surveyed, the
mean enrollment was 5,466 with a standard deviation of 8,191. Of the 35 two-year colleges surveyed, the
mean enrollment was 5,068 with a standard deviation of 4,777. Test the student's claim at the 0.10
significance level.
a) The null and alternative hypothesis would be:
OH:LF=UT
Η : με > με
O Ho PF PT
H₁: PF PT
O Ho μFμT
Η : με 7 μπ
=
O Ho PF PT
H₁ PF PT
O Ho μFμT
Η : με < μτ
=
O Ho PF PT
H₁: PF
PT
b) Determine the test statistic. Round to two decimals.
t
c) Find the p-value and round to 4 decimals.
P =
d) Make a decision.
O Fail to reject the null hypothesis
O Reject the null hypothesis
e) Write the conclusion.
O There is not sufficient evidence to support the claim that enrollement is high at a four-year college
than a two-year college.
There is sufficient evidence to support the claim that enrollement is high at a four-year college than
a two-year college.
Transcribed Image Text:A student at a four-year college claims that mean enrollment at four-year colleges is higher than at two- year colleges in the United States. Two surveys are conducted. Of the 35 four-year colleges surveyed, the mean enrollment was 5,466 with a standard deviation of 8,191. Of the 35 two-year colleges surveyed, the mean enrollment was 5,068 with a standard deviation of 4,777. Test the student's claim at the 0.10 significance level. a) The null and alternative hypothesis would be: OH:LF=UT Η : με > με O Ho PF PT H₁: PF PT O Ho μFμT Η : με 7 μπ = O Ho PF PT H₁ PF PT O Ho μFμT Η : με < μτ = O Ho PF PT H₁: PF PT b) Determine the test statistic. Round to two decimals. t c) Find the p-value and round to 4 decimals. P = d) Make a decision. O Fail to reject the null hypothesis O Reject the null hypothesis e) Write the conclusion. O There is not sufficient evidence to support the claim that enrollement is high at a four-year college than a two-year college. There is sufficient evidence to support the claim that enrollement is high at a four-year college than a two-year college.
The average student loan debt is reported to be $25,235. A student belives that the student loan debt is
higher in her area. She takes a random sample of 100 college students in her area and determines the
mean to be $27,524 and the standard devition to be $6000. Is there sufficient evidence to support the
student' claim at a 5% significance level?
a) Determine the null and alternative hypotheses.
Ho:
Ha: Select an answer
(Put in the correct symbol and value)
b) Determine the test statistic. Round to two decimals.
t=
c) Find the p-value. Round to 4 decimals.
P-value
=
d) Make a decision.
O Fail to reject the null hypothesis
O Reject the null hypothesis
e) Write the conclusion.
O There is not sufficient evidence to support the claim that student loan debt is higher than $25,235.
O There is sufficient evidence to support the claim that student loan debt is higher than $25,235.
Transcribed Image Text:The average student loan debt is reported to be $25,235. A student belives that the student loan debt is higher in her area. She takes a random sample of 100 college students in her area and determines the mean to be $27,524 and the standard devition to be $6000. Is there sufficient evidence to support the student' claim at a 5% significance level? a) Determine the null and alternative hypotheses. Ho: Ha: Select an answer (Put in the correct symbol and value) b) Determine the test statistic. Round to two decimals. t= c) Find the p-value. Round to 4 decimals. P-value = d) Make a decision. O Fail to reject the null hypothesis O Reject the null hypothesis e) Write the conclusion. O There is not sufficient evidence to support the claim that student loan debt is higher than $25,235. O There is sufficient evidence to support the claim that student loan debt is higher than $25,235.
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