Question: A large university is interested in learning about the average time it takes students to drive to campus. The university sampled 51 students and asked

A large university is interested in learning about the average time it takes students to drive to campus. The university sampled 51 students and asked each to provide the amount of time they spent traveling to campus. The sample results found that the sample mean was 23.243 minutes and the sample standard deviation was 20.40 minutes. It is desired to determine if the population standard deviation exceeds 20 minutes. Calculate the test statistic for this test of hypothesis.

A) x2 = 53.06

B) x2 = 58.11

C) x2 = 52.02

D) x2 = 51

Step by Step Solution

★★★★★

3.25 Rating (157 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The appropriate hypotheses are as follows Null hypothesis H20 Alternative h... 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

Students Have Also Explored These Related Accounting Questions!

The MPA director at a large university is interested in the factors that lead to successful placement of MPA students in employment. She defines successful placement of an MPA student as being...

A car manufacturer is interested in learning about the proportion of people purchasing one of its cars who plan to purchase another car of this brand in the future. A random sample of 400 of these...

A large online retailer is interested in learning about the proportion of customers making a purchase during a particular month who were satisfied with the online ordering process. A random sample of...

The article How Business Students Spend Their TimeDo They Really Know? (Research in Higher Education Journal [May 2009]: 110) describes a study of 212 business students at a large public university....

Another type of confidence interval is called a one-sided confidence interval. A one-sided confidence interval provides either a lower confidence bound or an upper confidence bound for the parameter...

As mentioned in Exercise 7.39, according to the American Time Use Survey, Americans watch television each weekday for an average of 151 minutes (Time, July 11, 2011). Suppose that the current...

A new muscle relaxant is available. Researchers from the firm developing the relaxant have done studies that indicate that the time lapse between administration of the drug and beginning effects of...

The article The Prevalence of Daytime Napping and Its Relationship to Nighttime Sleep (J. Pilcher, K. Michalkowski, and R. Carrigan), Behavioral Medicine, 2001:7176) presents results of a study of...

A 2017 survey found that the daily time spent on social media differs by age group. You select random samples of people from each age group to verify the information. The following table lists the...

Frank Meyers, CFA, is a fixed-income portfolio manager for a large pension fund. A member of the Investment Committee, Fred Spice, is very interested in learning about the management of fixed-income...

The factory is specifically producing two types of butter: salted and unsalted. The salted butter is sold using brand name Tetote (which means salted in Maori language) at $11 per unit and the...

Test the claim that the variance of heights of tall buildings in Denver is equal to the variance in heights of tall buildings in Detroit at = 0.10. The data are given in feet. a. State the...

Specialization often _ _ _ _ _ _ _ rather than _ _ _ _ _ _ _ _ _ _ as farms became more commercialized, in order to gain the higher expected returns. Group of answer choices Increases, decreases...

1. Define the following terms and give example each: i. Population ii. Sample iii. Survey iv. Census v. Parameter vi. Statistic 2. Determine each of the following as examples of (1) nominal, (2)...

During gym class Sally noticed that her friend Melissa always ran faster than her. Sally knew that they exercised equally, so she wondered what could cause Melissa to run so fast. Sally began to...

The homogeneous disk (mass = 1.2 kg) is started on the horizontal surface with a forward speed of 2 m / s and a backward spin of rad / s. Determine the required value of if the disk is to come to a...

Determine if the given function is continuous or not, using 3 steps. a. f(x) = x4 - 3x3 + 2x? 5x 7 at x = -1 %3! b. f(x) = x-3 at x = -3 %3D c. f(x) : x2 at x = 1 x-2 d. f(x) = 2x at x = 4 !! x2-3...

Compute the ff. tan x A) lim x 0 1-cos(2x) B) lim X 0 x2

Which of these is a statement of opinion? Weihenmayer traveled to Alaska with a group of mountaineers to scale Denali. Mountain climbers often have to navigate treacherous terrain. Determination is...

Page 1 of 7 01. A few of the variables for which data were collected in a certain study include age, gender, income, and number of hours spent shopping online per month. Which of the variables is...

1)The Human Resources Department of a large corporation maintains records on its employees. The table displays some of these data. List the variables in the data set. Indicate whether each variable...

A large university is interested in learning about the average time it takes students to drive to campus. The university sampled 238 students and asked each to provide the amount of time they spent...

Choose the answers from a,b,c &d also please explain step wise. 1) A revenue department is under orders to reduce the time small business owners spend filling out pension form ABC-5500. Previously...

A large university is interested in learning about the average time it takes students to drive to campus. The university sampled 77 students and asked each to provide the amount of time they spent...