Researchers collected a simple random sample of the times that 81 college students required to earn their bachelor's degree. The sample years. Use a significance level of is as follows: years, to test the claim that the mean time requirec n = 81' i = 4.8 s = 2.2 a = 0.05 college students to earn a bachelor's degree is greater than 4.5 years. (a) Identify the null and alternative hypothesis in symbolic form. Ho: H1: (b) What is the value of the test statistic? Round decimal to two places. (c) What is the ? Round decimal to three places. P - Value (d) State and interpret the final conclusion in the context of this problem

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QUESTION 7
Researchers collected a simple random sample of the times that 81 college students required to earn their bachelor's degree. The sample data
years. Use a significance level of
is as follows:
years,
to test the claim that the mean time required for
n = 81' i = 4.8
s = 2.2
a = 0.05
%3D
college students to earn a bachelor's degree is greater than 4.5 years.
(a) Identify the null and alternative hypothesis in symbolic form.
Ho:
H1:
(b) What is the value of the test statistic? Round decimal to two places.
(c) What is the
? Round decimal to three places.
P - Value
(d) State and interpret the final conclusion in the context of this problem.
(e) Construct a 98% confidence interval to estimate the true mean time required for college students to earn a bachelor's degree. Round
decimal to two places.
(f) During an interview in 2013, the United States Senator, Ron Johnson, stated that on average, a college degree takes six and a half years.
Is this consistent with the results from part (e)? Explain.
For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).
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Transcribed Image Text:QUESTION 7 Researchers collected a simple random sample of the times that 81 college students required to earn their bachelor's degree. The sample data years. Use a significance level of is as follows: years, to test the claim that the mean time required for n = 81' i = 4.8 s = 2.2 a = 0.05 %3D college students to earn a bachelor's degree is greater than 4.5 years. (a) Identify the null and alternative hypothesis in symbolic form. Ho: H1: (b) What is the value of the test statistic? Round decimal to two places. (c) What is the ? Round decimal to three places. P - Value (d) State and interpret the final conclusion in the context of this problem. (e) Construct a 98% confidence interval to estimate the true mean time required for college students to earn a bachelor's degree. Round decimal to two places. (f) During an interview in 2013, the United States Senator, Ron Johnson, stated that on average, a college degree takes six and a half years. Is this consistent with the results from part (e)? Explain. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIU S Paragraph Arial 14px A ...
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