A study examines whether there is a relationship between how long a nurse has worked at a large urban hospital and her or his job satisfaction. Job satisfaction scores were on a scale with a range from 25-50. Using the data and all of the information provided in the table below to...

(a) Calculate Pearson’s r correlation.

(b) Interpret the statistic, including two parts to your interpretation.

(c) Calculate a ‘coefficient of determination’ (r²) and interpret it.

1. A horse race contains 8 horses. If you wished to bet on every possible top three finishes (first, second, and third place), how many bets would you need to place?
2. The following represents a binomial experiment. Seven plants are operated by a garment manufacturer in seven different countries. There is a 10% chance of strike at any time. It is also believed that strikes at one plant do not influence strikes at any other plant (because these are in third world countries with little access to news information.)  What is the probability of at most two plants going on strike?
3. The pH measurements of water specimens from various locations along a given river basin are normally distributed with mean 8 and standard deviation 0.3.  What is the probability that the pH measurement of a randomly selected water specimen is dangerous—less than 7.2?

Design a program in Java to display the following:

Car Design

Enter the car model's year: 1957
Enter the car's make: Chevy
The model year is 1957
The make is Chevy
The speed is 0

Let's see what it can do!!
The speed is,...
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150
STOP! STOP! Let me OUT!
The speed is,...
145 140 135 130 125 120 115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0

Whew. I'll just walk from here - thanks.

Design a program in Java to display the following:

Car Design

Enter the car model's year: 1957
Enter the car's make: Chevy
The model year is 1957
The make is Chevy
The speed is 0

Let's see what it can do!!
The speed is,...
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150
STOP! STOP! Let me OUT!
The speed is,...
145 140 135 130 125 120 115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0

Whew. I'll just walk from here - thanks.

A market researcher believes that brand perception of one of the company's products may vary between different groups. After interviewing 269 persons, the following data was compiled. Can we conclude that brand perception is dependent on age?

Step 1 of 8:

State the null and alternative hypothesis.

Step 2 of 8:

Find the expected value for the number of particpants who are 18-30 years old and have a favorable perception of the brand. Round your answer to one decimal place.

Step 3 of 8:

Find the expected value for the number of particpants who are 30-45 years old and have a favorable perception of the brand. Round your answer to one decimal place.

Step 4 of 8:

Find the value of the test statistic. Round your answer to three decimal places.

Step 5 of 8:

Find the degrees of freedom associated with the test statistic for this problem.

Step 6 of 8:

Find the critical value of the test at the 0.1 level of significance. Round your answer to three decimal places.

Step 7 of 8:

Make the decision to reject or fail to reject the null hypothesis at the 0.1 level of significance.

Step 8 of 8:

State the conclusion of the hypothesis test at the 0.1 level of significance.

1. How can capital indivisibility create an economy of scale?

2. Adam Smith claimed that he had discovered the most important factor affecting productivity. What was he referring to?

3. What is craft production?

4. What type policy did Adam Smith advocate in order to realize this economy of scale?

5. Large firms can often buy inputs in large quantities. This often creates an ________.

Diseconomies of Scale – Sources and Possible Remedies  

6. What are the most important diseconomies of scale at the plant level? _________. What is the solution to this problem? ___________

7. What is the most important diseconomy of scale at the firm level? _________ How have firms addressed this issue? _______

• US Steel was created to monopolize the steel industry. It had a 64% market share. What happened next? Did US Steel find a solution to its diseconomy of scale?
• Downsizing?
• “Taylorism?” How have workers usually reacted to Taylorism? Why did the Soviet leader V.I. Lenin think that Soviet workers would embrace “Taylorism?” Did Soviet workers like Taylorism?
• piece-rate pay?
• Piece-rate pay can be an effective solution to shirking, however, it does require that the firm use or employ a _____ to make sure that workers do not cut corners.
• Requiring managers to buy the company’s stock?
• Creating residual claimants?
• hostile take overs? Compared to the U.S., hostile take overs have been rare in Europe and Japan. What have been the consequences for Europe from not allowing hostile take overs? _____________. What have been the consequences for Japan from not allowing hostile take overs? ______________
• efficiency wage?

Group A:

60, 57, 53, 42, 44, 48, 54, 39, 52, 45

Group B:

50, 49, 60, 55, 43, 56, 53, 69, 49, 52

Using Wilcoxen Rank Sum test to test a difference in the medians of the two populations using

Alpha= 0.05

Q3. During April, the following changes in the single inventory product took place: (1 mark).

          April   1     Balance                        1,400 units @ $24

                      8     Purchased                       900 units @ $36

                    12     Purchased                       700 units @ $30

                    24     Purchased                       400 units @ $50

                    10     Sold                              1,500 units @ $40

                    26     Sold                              1,700 units @ $44

Calculate the COGS after each sales transaction and the ending inventory after each transaction under the following methods.

(a)   FIFO.

(b)   Average Cost. (round numbers to the nearest 10)

Answer:

Assume a monopolist with marginal cost of 0 is selling to two types of agents whose demand function is given by qA= 10−p, qB= 8−p. The monopolist is not allowed to price discriminate between the two agents. But he designs one package consisting of 10 units and another one consisting of 8 units.What is the highest price the monopolist can charge for the bigger package so that it is still bought by some agents?

(a)p= 32   (b)p= 48   (c)p= 50    (d)p= 34

Answer is D