Question: An accounting firm is testing a new software program. The company selects a random sample of workers and trains them on the new software until

An accounting firm is testing a new software program. The company selects a random sample of workers and trains them on the new software until the employees are equally comfort able with the two programs. These workers are then asked to complete a set of tasks-with the old software and the new software (order of software randomly assigned)-and keep track of how long (in minutes) the work takes. A 95% confidence interval of the average difference in time is (3.9, 14.3). The order of subtraction was (time with old software - time with new software).Without doing any further calculations, what can you conclude about whether the tasks are completed in the same amount of time with the two software programs? What level of significance applies? Which software program would you recommend? Explain your reasoning.

Step by Step Solution

★★★★★

3.39 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

There is sufficient evidence to reject the hypothesis that the tasks are completed in th... 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)

487-M-S-S-D (1229).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

A company is testing a new medicine for migraine headaches. In the study, 150 women were given the new medicine and an additional 100 women were given a placebo. Each participant was directed to take...

A steel manufacturer is testing a new additive for manufacturing an alloy of steel. The joint probability mass function of tensile strength (in thousands of pounds/in2) and additive concentration is...

In alpha testing a new software package, a software engineer finds that the number of defects per 100 lines of code is a random variable X with probability distribution: Find (a) Pr(X > 1). (b) Pr(X...

Just over a year after Michael Brown's death became a focal point for a national debate about policing and race, Ferguson and nearby St. Louis suburbs have returned to what looks, from the outside,...

Read, analyze and explain the following article: make a essay, presenting your analysis of the pricing strategy used in this article. Explain the importance of the presented pricing strategy....

The family is currently keeping the accounting records for the Vine & Branches entities in separate tabs of an Excel workbook, but the businesses seem to be outgrowing Excel. John and Mary have...

Business Research MethodologyQuestion Bank 1 1. When the marketing department of an organization attempts to determine the amount of time the managers in this department spend at their computers in...

10. An experimenter has some degree of control over the: a. independent variable. b. correlative variable. c. history effect. d. All of the above, if the experiment is conducted properly. 11. If a...

Business Research Methodology- Question Bank 1 1. When the marketing department of an organization attempts to determine the amount of time the managers in this department spend at their computers in...

MS1023 Business Statistics w/Comp Apps I Homework #3B - Use Red Par Score Form Chps. 9 & 10: 100 Questions 1. A null hypothesis must always include the equality sign. a) True b) False 2. If the...

Norlutin® and Enovid® are ketones that suppress ovulation. Consequently, they have been used clinically as contraceptives. For which of these compounds would you expect the infrared carbonyl...

A company produces the financial results shown in the table below. The executives at the firm have good reason to believe that $10 million in sales will be generated in 2010. Using simple linear...

In C . Write a program which does the following: Prints out a message asking the user to enter 3 integers to be sorted. Accepts three integer numbers. ( assume good data ) . Prints out a message...

What evidence was the basis of the FLRA decision to revoke PATCOs exclusive representation status? Did the court of appeals agree with that decision? Why?

Why is the median resistant, but the mean is not?

According to the Statistical Abstract of the United States, the mean net worth of all households in the United States in 2007 was $556,300, while the median net worth was $120,300. (a) Which measure...

For each of the following situations, determine which measure of central tendency is most appropriate and justify your reasoning. (a) Average price of a home sold in Pittsburgh, Pennsylvania, in 2011...

Problems 6 & 8 Suppose a company has a preferred stock issue and a common stock issue. Both have just paid a $2 dividend. Which do you think will have a higher price, a share of the preferred or a...

The capital accounts for the firm are as follows: Common stock (2,100,000 shares at $5 par) Capital in excess of par* Retained earnings Net worth $10,500,000 3,000,000 26,500,000 $40,000,000 *The...

WACC AYY Inc. has a debt outstanding with a market value of $ 9 , 0 0 0 , 0 0 0 and 1 6 0 , 0 0 0 common shares currently trading at $ 4 6 each. The firm has a tax rate of 0 . 3 2 . The yield on the...