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
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...See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started