Question: In their 2003 and 2008 studies on how long wireless customers have to spend on hold before speaking with a customer service representative, J.D. Power

In their 2003 and 2008 studies on how long wireless customers have to spend on hold before speaking with a customer service representative, J.D. Power and Associates found the mean times to be 3.3 minutes and 4.4 minutes, respectively. Assume that data file XR11041 contains the data, in minutes, for times on hold during the 2003 and 2008 studies. Use a one-tail test and the 0.05 level of significance in concluding whether the population mean time for 2008 could be greater than that for 2003. Determine and interpret the p-value for the test.

Step by Step Solution

★★★★★

3.55 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The null and alternative hypotheses are H 0 m 1 m 2 or m 1 m 2 0 average waiting time in 2008 was no ... 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)

522-M-S-H-T (2468).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

The Jones and McFarlin Company provides call center support for a number of electronics manufacturers. Customers call in to receive assistance from a live technician for the products they have...

For most services, longer customer waiting times mean lower customer satisfaction. Suppose you have the following data to use for a simple linear regression analysis intended to link length of...

Construct a stem-and-leaf display for the following data, which give the times (in minutes) that 24 customers spent waiting to speak to a customer service representative when they called about...

11.41 In their 2003 and 2008 studies on how long wireless customers have to spend on hold before speaking with a customer service representative, J.D. Power and Associates found the mean times to be...

Paragraph One & Two: Prior to the financial recession in the late 2000s, some companies had built up significant cash balances. By 2010, discussions began about whether "cash hoarding" by firms was...

Hi tutors, can anyone help me work on the below assignment thanks. Paragraph One & Two: Prior to the financial recession in the late 2000s, some companies had built up significant cash balances. By...

Based on the text material and the case material, answer the following questions: Who are Publixs competitors and why would they be likely to take action against Publix? How do you think Publix could...

As if dealing with economic cycles, fuel price volatility, organized labor, changing customer demographics, and increased competition was not enough... Delta CEO Ed Bastian assumed the role of Deltas...

******ebook converter DEMO Watermarks******* ******ebook converter DEMO Watermarks******* ******ebook converter DEMO Watermarks******* ******ebook converter DEMO Watermarks******* Also by Marcus...

Calculate the molar mass of Na2SO4.10H2O (Na=23.0; S= 32.1;O=16.0; H=1.00amu).

Let P be a point at a distance from the center of a circle of radius r. The curve traced out by P as the circle rolls along a straight line is called a trochoid. (Think of the motion of a point on a...

46. Five observations taken for two variables follow. a. Develop a scatter diagram for these data. b. What does the scatter diagram indicate about a relationship between x and y? c. Compute and...

You read in your local newspaper that DB plans are only allowed to make contributions up to the point of being fully funded. After this point, no more contributions (employer deductions) are...

On average, 30-minute television sitcoms have 22 minutes of programming (CNBC, February 23, 2006). Assume that the probability distribution for minutes of programming can be approximated by a uniform...

Suppose we are interested in bidding on a piece of land and we know one other bidder is interested. The seller announced that the highest bid in excess of $ 10,000 will be accepted. Assume that the...

B. J. Gautney Enterprises is evaluating a security. One-year Treasury bills are currently paying 4.5 percent. Calculate the investment's expected return and its standard deviation. Should Gautney...

PLEASE ANSWER!!!! suppose a firm pays a dividend on it's stock at ... Question Edit question Suppose a firm pays a dividend on it's stock at the end of every period, the stock's beta is 1.2, the...

Suppose you observe the following situation: State of Economy Probability of State of Economy Rate of Return if State Occurs Stock A Stock B Bust 0.22 -0.12 -0.27 Normal 0.48 0.10 0.05 Boom 0.30 0.23...