Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

An article in the San Jose Mercury News stated that students in the California state university system take 4.5 years, on average, to finish


imageimageimageimageimage

An article in the San Jose Mercury News stated that students in the California state university system take 4.5 years, on average, to finish their undergraduate degrees. Suppose you believe that the mean time is longer. You conduct a survey of 47 students and obtain a sample mean of 5.1 with a sample standard deviation of 1.2. Do the data support your claim at the 1% level? Note: If you are using a Student's t-distribution for the problem, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.) Part (a) State the null hypothesis. Ho: M 4.5 Ho: #4.5 : > 4.5 Ho: Part (f) What is the p-value? (Round your answer to four decimal places.) 0.6745 Explain what the p-value means for this problem. If Ho is false, then there is a chance equal to the p-value that the difference in the sample mean of the prices at the Hyatt Regency and Hilton hotels is at most 9.5. If Ho is true, then there is a chance equal to the p-value that the difference in the sample mean of the prices at the Hyatt Regency and Hilton hotels is at least 9.5. If Ho is false, then there is a chance equal to the p-value that the difference in the sample mean of the prices at the Hyatt Regency and Hilton hotels is at least 9.5. If Ho is true, then there is a chance equal to the p-value that the difference in the sample mean of the prices at the Hyatt Regency and Hilton hotels is at most 9.5.

Step by Step Solution

There are 3 Steps involved in it

Step: 1

Solutions Step 1 Given Hypothesis population mean 6 Sample Mean 51 Sample Standard Deviation s 12 Sa... blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Introductory Business Statistics

Authors: Alexander Holmes , Barbara Illowsky , Susan Dean

1st Edition

1506699847, 9781506699844

More Books

Students also viewed these Mathematics questions