Salary data from two random samples of high school teachers from Pennsylvania and Ohio are as follows.

Question:

Salary data from two random samples of high school teachers from Pennsylvania and Ohio are as follows. Also shown are the population standard deviations for these populations.

a. Construct a 90% confidence interval to estimate the difference in the average salaries of the high school teachers in these two states.

b. Based on the results from part a, can you conclude that a difference exists in the average salaries?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Business Statistics

ISBN: 9780321925121

2nd Edition

Authors: Robert A. Donnelly

See More Books

Question Posted: Jul 17, 2015 07:41 AM

See More Questions

The data that follow are from two random samples of 37 college males and 42 college females with respect to their commute times to e. a. What are the populations of interest? b. Describe...
The data that follow are from two random samples of 37 college males and 42 college females with respect to their commute times to e. a. Do the distributions of commute time for males and females...
You have selected two random samples of size 50, one from Population 1 and one from Population 2. You intend to use the samples to test the following hypotheses regarding the difference in means for...
A lightweight, rigid beam 10.0 m long is supported by a cable attached to a spring of force constant k = 8.25 kN/m as shown in Figure P12.38. When no load is hung on the beam (Fg = 0), the length L...
(a) If market price is above equilibrium price, explain what happens and why? (b) If market price is below equilibrium price, explain what happens and why?
Determine the horizontal and vertical components of force that the pins at A, B, and C exert on their connecting members. Units Used: kN = 103 N Given: F = 800 N a = 1 m r = 50 mm b = 0.2 m B C
The rates charged by a shipper vary with the commodity shipped. Name and describe four factors that affect the rates. LO.1
On January 1, 2012, the Eugene Company ledger shows Equipment $36,000 and Accumulated Depreciation $13,600. The depreciation resulted from using the straight line method with a useful life of 10...
please help in solving this Calculate the maturity value of $1,650 made monthly for four years at the beginning of each month. Assume interest earns 3,8% compounded monthly. Fill in the EXACT values...
In the table below, according to the Machine-Part matrix of 11 parts traded on 8 Machines a. Create manufacturing cells using the Cost Analysis algorithm. (The maximum number of machines that can be...
Consider the following hypothesis statement using = 0.05 and data from two independent samples: a. Calculate the appropriate test statistic and interpret the result. b. Calculate the p value and...
Consider the following hypothesis statement using = 0.05 and data from two independent samples. Assume the population variances are equal and the populations are normally distributed. a. Calculate...
Suppose that a company expects its annual profits t years from now to be f(t) dollars and that interest is considered to be compounded continuously at an annual rate r. Then the present value of all...
(AVR) PR=IAVR=1R = (power dissipated by a resistor) (28.12) R
As a manager and an entrepreneur, you will face a new challenge - business venture structured on the theory of the firm. You are opening a restaurant in your selected town in the State of NY (please...
Install on ubuntu , please provide a screenshot for each step 1)How to install base64 on ubuntu 2)What kind of analysis is performed by Cuckoo? How to install Cuckoo on ubuntu?
rt a letter to Rose McBride. Writing Plan - Refusal to a Request Rubric Buffer: Start with a neutral statement on which both reader and writer can agree, such as a compliment, appreciation, a quick...
FACTS: The Budvar Company sells parts to a foreign customer on December 1, Year 1, with payment of 20,000 crowns to be received on March 1, Year 2. Budvar enters into a forward contract (with a...
Can you speculate about the personality traits that personify Fujio Cho and Katsuaki Watanabe? Toyota often shows up on lists of the most admired businesses in the world. Its products generally earn...
Find the center of mass of a thin triangular plate bounded by the y-axis and the lines y = x and y = 2 - x if (x, y) = 6x + 3y + 3.
A certain large shipment comes with a guarantee that it contains no more than 15% defective items. If the proportion of items in the shipment is greater than 15%, the shipment may be returned. You...
Twenty percent of U.S. mortgages are underwater (The Boston Globe, March 5, 2009). A mortgage is considered underwater if the value of the home is less than what is owed on the mortgage. Suppose 100...
According to a survey by consulting firm Watson Wyatt, approximately 19% of employers have eliminated perks or plan to do so in the next year (Kiplingers Personal Finance , February 2009). Suppose 30...
Studies have shown that bats can consume an average of ten mosquitoes per minute (berkshiremuseum.org). a. Calculate the average number of mosquitoes that a bat consumes in a 30-second interval. b....
What is Coke's average ownership percentage in its equity method investments? Goodwill is 7000 Calculate the firm's current ratio (current assets/current liabilities). Calculate the current ratio...
John has to choose between Project A and Project B, which are mutually exclusive. Project A has an initial cost of $30,000 and an internal rate of return of 16 percent. Project B has an initial cost...
Complete the table below, for the above transactions

Salary data from two random samples of high school teachers from Pennsylvania and Ohio are as follows.

Question:

Pennsylvania Ohio Sample mean Sample size Population standard deviatin $6433 $53.289 $49,945 46 $7,012 40

Step by Step Answer:

a b The confidence interval does not include zero so the...View the full answer

Business Statistics

Students also viewed these Statistics questions