Question

15% of all college students volunteer their time. Is the percentage of college students who are volunteers larger for students receiving financial aid? Of the 332 randomly selected students who receive financial aid, 53 of them volunteered their time. What can be concluded at the α= 0.05 level of significance?

- The test statistic is ?

- The p-value = (Please show your answer to 4 decimal places.)

Answer #1

The null and alternate hypothesis are:

H0:

Ha:

The test statistic is given by:

Since this is a right-tailed test, so the p-value is given by:

Since p-value is greater than 0.05, so we do not have sufficient evidence to reject the null hypothesis H0.

Thus we cannot conclude that the percentage of college students who are volunteers is larger for students receiving financial aid.

15% of all college students volunteer their time. Is the
percentage of college students who are volunteers larger for
students receiving financial aid? Of the 366 randomly selected
students who receive financial aid, 62 of them volunteered their
time. What can be concluded at the α = 0.05 level of significance?
For this study, we should use z-test for a population proportion
The null and alternative hypotheses would be: H 0 : p = (please
enter a decimal) H 1...

15% of all college students volunteer their time. Is the
percentage of college students who are volunteers larger for
students receiving financial aid? Of the 354 randomly selected
students who receive financial aid, 60 of them volunteered their
time. What can be concluded at the α = 0.10 level of significance?
For this study, we should use The null and alternative hypotheses
would be: H 0 : (please enter a decimal) H 1 : (Please enter a
decimal) The test...

20% of all college students volunteer their time. Is the
percentage of college students who are volunteers different for
students receiving financial aid? Of the 363 randomly selected
students who receive financial aid, 58 of them volunteered their
time. What can be concluded at the α = 0.10 level of significance?
For this study, we should use The null and alternative hypotheses
would be: H 0 : (please enter a decimal) H 1 : (Please enter a
decimal) The test...

12% of all college students volunteer their time. Is the
percentage of college students who are volunteers different for
students receiving financial aid? Of the 311 randomly selected
students who receive financial aid, 56 of them volunteered their
time. What can be concluded at the αα = 0.10 level of
significance?
For this study, we should use Select an answer z-test for a
population proportion t-test for a population mean
The null and alternative hypotheses would be:
H0:H0: ? p...

12% of all college students volunteer their time. Is the
percentage of college students who are volunteers different for
students receiving financial aid? Of the 336 randomly selected
students who receive financial aid, 24 of them volunteered their
time. What can be concluded at the αα = 0.10 level of
significance?
For this study, we should use Select an answer t-test for a
population mean z-test for a population proportion
The null and alternative hypotheses would be:
H0:H0: ? μ...

A university dean is interested in determining the proportion of
students who receive some sort of financial aid. Rather than
examine the records for all students, the dean randomly selects 200
students and finds that 122 of them are receiving financial aid.
Use a 95% confidence interval to estimate the true proportion of
students who receive financial aid.

A university dean is interested in determining the proportion of
students who receive some sort of financial aid. Rather than
examine the records for all students, the dean randomly selects 200
students and finds that 118 of them are receiving financial aid. If
the dean wanted to estimate the proportion of all students
receiving financial aid to within 3% with 99% reliability, how many
students would need to be sampled?
Please show al work on how you got the answer.

A university dean states that the proportion of students who
receive some sort of financial aid has increased compared to 55% of
students who received financial aid over the last several years.
The dean randomly selects 200 students and finds that 118 of them
are receiving aid.
Form the hypothesis to test the dean’s statement.
Conduct this test and explain if you support the dean’s
statement using 5% significance level for this test.

A university dean is interested in determining the proportion of
students who receive some sort of financial aid. Rather than
examine the records for all students, the dean randomly selects 200
students and finds that 118 of them are receiving financial aid.
Use a 98% confidence interval to estimate the true proportion of
students on financial aid.

A university dean is interested in determining the proportion of
students who receive some sort of financial aid. Rather than
examine the records for all students, the dean randomly selects 200
students and finds that 118 of them are receiving financial aid. If
the dean wanted to estimate the proportion of all students
receiving financial aid to within 1% with 98% reliability, how many
students would need to be sampled?
Select one: A. 132 B. 5637 C. 13,133 D. 3177

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