Question: You plan to select a simple random sample in order to estimate the average course load for freshman students at Brighton College. From the freshman

You plan to select a simple random sample in order to estimate the average course load for freshman students at Brighton College. From the freshman class of 1600, you randomly choose 16 students, with the following results: sample mean = 16.2 credit hours, sample standard deviation = 5.3 credit hours. Construct a 95% confidence interval estimate of the class average. As you proceed, decide which of the following you should be using
a. The t .
b. An assumption that the population here is approximately normal.
c. Division by n –1 rather than n.

Step by Step Solution

★★★★★

3.43 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The interval is t s n or 162 213253 16 or 162 283 or 1337 t... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

486-M-S-O-T-P (1013).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Berjaya Specialist Hospital acquired Da Vinci surgical equipment for RM2 million on 1 January 2019. The useful life of the equipment is expected to be 10 years. The fair value of the equipment on 31...

You need to select a simple random sample of four from eight friends who will participate in a survey. Assume the friends are numbered 1, 2, 3, 4, 5, 6, 7, and 8. Select four friends, using the two...

In order to estimate the average electric usage per month, a sample of 196 houses was selected, and their electric usage determined. Assume a population standard deviation of 350 KWH. a. Determine...

1 POM 212 Business Statistics Homework Assignment-3 Note: The homework is due on the day of Test-3. Chapter-7 Problems: Problem-1 Fortune publishes business related data for the 500 largest U.S....

CHAPTER 9 Hypothesis Tests CONTENTS 9.4 POPULATION MEAN: UNKNOWN One-Tailed Test Two-Tailed Test Summary and Practical Advice 9.5 POPULATION PROPORTION Summary 9.6 HYPOTHESIS TESTING AND DECISION...

\fJournal of Mixed Methods Research http://mmr.sagepub.com Mixed Methods Sampling: A Typology With Examples Charles Teddlie and Fen Yu Journal of Mixed Methods Research 2007; 1; 77 DOI:...

Final Exam MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. 1) The average age of the students in a statistics class is 22...

STAB22H3 Statistics I 2020 1.A researcher used a linear regression model to investigate the relationship between sexually transmitted disease rate (y) and poverty rate (x) in the U.S.A. The...

The Wildlife Conservation Center has put together a database to keep track of the attributes of its employees. Specifically, numerical codes are assigned to variables as follows: Use the variable...

Vang Silian Ltd. is a travel agency that specializes in tours to Taiwan and Russia. It has 66,000, $8 par value common shares issued and outstanding. On March 16, 2018, the organization declared a...

Lowerlevel leaders are usually more involved in daytoday operations than top executives They do not have much of a direct effect on overall financial results like profits or revenue growth Instead...

134. Inadequate Warnings A water pipe burst, fl ooding a companys switchboard and tripping the switchboard circuit breakers. Company employees assigned to reactivate the switchboard included an...

Refer to Exercise 11.93. Body mass index (BMI) is a measure of body fat based on height and weight. According to the document Dietary Guidelines for Americans, published by the U.S. Department of...

A Harris Poll was conducted to estimate the proportion of Americans who feel that marijuana should be legalized for medicinal use in patients with cancer and other painful and terminal diseases....

The National Association of Colleges and Employers sponsors the Graduating Student and Alumni Survey. Part of the survey gauges student optimism in landing a job after graduation. According to one...

The UMUC Daily News reported that the color distribution for plain M&M's was: 40% brown, 20% yellow, 20% orange, 10% green, and 10% tan. Each piece of candy in a random sample of 100 plain M&M's was...

The investment banking firm of Einstein & Co. will use a dividend valuation model to appraise the shares of the Modern Physics Corporation, Dividends at the end of the current year will be $1.64. The...

When property is disposed of, what factors influence the amount of the deductible loss