1. The theory of monopoly assumes that the monopoly firm

faces a downward-sloping supply curve that is the same as its marginal revenue curve.

faces a downward-sloping demand curve.

produces more than the perfectly competitive firm under identical demand and cost conditions.

produces a product for which there are many close substitutes.

none of the above

2. A single-price monopolist is a monopolist that sells each unit of its output for the same price to all its customers. Assume that a single-price monopolist sets its price for good X at $75 and is selling more than one unit of good X. Which of the following must be true?

The average cost of that unit must be $75.

The marginal cost of that unit must be $75.

The marginal revenue of that unit must be $75.

The marginal revenue of that unit must be less than $75

3. A single-price monopolist is a firm that sell each unit of its output for the same price to all its customers. At the level of output at which a single-price monopolist maximizes profit, price is

equal to marginal cost.

equal to marginal revenue.

greater than marginal cost.

less than marginal cost.

less than marginal revenue.

The International League of Triple-A minor league baseball consists of 14 teams organized into three divisions: North, South, and West. Suppose the following data show the average attendance for the 14 teams in the International League. Also shown are the teams' records; W denotes the number of games won, L denotes the number of games lost, and PCT is the proportion of games played that were won.

(a)

Use α = 0.05 to test for any difference in the mean attendance for the three divisions.

State the null and alternative hypotheses.

H₀: Not all the population means are equal.
H_a: μ_N = μ_S = μ_W

H₀: μ_N = μ_S = μ_W
H_a: Not all the population means are equal.    

H₀: μ_N ≠ μ_S ≠ μ_W
H_a: μ_N = μ_S = μ_W

H₀: At least two of the population means are equal.
H_a: At least two of the population means are different.

H₀: μ_N = μ_S = μ_W
H_a: μ_N ≠ μ_S ≠ μ_W

Find the value of the test statistic. (Round your answer to two decimal places.)

t stat =

Find the p-value. (Round your answer to three decimal places.)

p-value =

State your conclusion.

Do not reject H₀. There is not sufficient evidence to conclude that the mean attendance values are not equal for the three divisions.

Do not reject H₀. There is sufficient evidence to conclude that the mean attendance values are not equal for the three divisions.    

Reject H₀. There is not sufficient evidence to conclude that the mean attendance values are not equal for the three divisions.

Reject H₀. There is sufficient evidence to conclude that the mean attendance values are not equal for the three divisions.

(b)

Use Fisher's LSD procedure to determine where the differences occur. Use α = 0.05.

Find the value of LSD for each pair of divisions. (Round your answers to two decimal places.)

North and South LSD=

North and West LSD=

South and West LSD=

Find the pairwise absolute difference between sample attendance means for each pair of divisions. (Round your answers to the nearest integer.)

x_N − x_S =

x_N − x_{W =}

x_S − x_{W =}

Which attendance means differ significantly? (Select all that apply.)

There is a significant difference in mean attendance between the North division and the South division.

There is a significant difference in mean attendance between the North division and the West division.

There is a significant difference in mean attendance between the South division and the West division.

There are no significant differences.

Using the SQL for Dummies textbook in the CSU Online Library, refer to Table 3-4 “Types of Protection” on page 74 to create three scenarios in which the use of protection operations are used to secure a database. Describe the scenario, select which protection operations users should use in the scenario, and then explain your selection.

Your paper should be three pages in length. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations, and cited per APA guidelines.

Pay your bills. In a large sample of 250 customer accounts, a

In a large sample of 250 customer accounts, a utility company determined that the average number of days between when the bill was sent out and when the payment was made is 32 with a standard deviation of 7 days. Assume the data to be approximately bell- shaped.

1. Use the empirical rule to construct a diagram of the distribution of the data.
2. Between what two numbers will approximately 68% of the numbers of days be?
3. Estimate the number of customers’ accounts for which the number of days is between 11 and 53.
4. Estimate the number of customers’ accounts that were greater than 39.
5. Estimate the number of customers’ accounts that were between 25 and 53.

Topic 3-2 Accounts Receivable Problem:

Receivables Forever Corp. started business on January 1, 20x3. The following information is provided about its sales during its first two years of operations.

[Hint: Companies can also use % of sales method to estimate bad-debt expense provision directly, instead of using aging schedule which estimate the ending allowance balance to back out bad-debt expense provision. For example, suppose the company estimate that 1% of the reported sales as bad-debt expense provision, then the ending balance would follow as beginning balance + bad-debt expense provision - write-offs.]

Year 20x3

During its first year of operations, 20x3, it had sales of $100,000. All sales were on credit. At the time that the sales were made, it was expected that 5% of the sales would be uncollectible. It collected $75,000 of the 20x3 sales during 20x3 and another $18,000 of the 20x3 sales during 20x4. It wrote off $3,000 of the 20x3 sales during 20x3 and $1,000 of the 20x3 sales during 20x4.

Year 20x4

During its second year of operations, 20x4, it had sales of $200,000. All sales were on credit. At the time that the sales were made, it was expected that 5% of the sales would be uncollectible. It collected $168,000 of the 20x4 sales during 20x4 and another $20,000 of the 20x4 sales during 20x5. It wrote off $8,000 of the 20x4 sales during 20x4.

20x4 year-end aging analysis

At year-end at 20x4, the company performed an aging analysis of existing accounts receivable calculation and found that the Allowance for Uncollectible Accounts account should have an ending balance of $6,000. It proceeded to make with the appropriate adjustment to Allowance and bad-debt expense accounts at the end of 20x4.

Questions:

1. Fill in the following account details for the Allowance for Uncollectible Accounts

2. 
   Fill in following balance sheet and income statement presentation for respective year

1. Identify a type of business and suggest how it could be improved using a lean strategy.

2. Provide an example of a lean system and identify the role of the suppliers and the customers in your system.

3. Explain the relationship between quality and productivity under the lean philosophy. Provide two examples.

4. Identify a business and describe in detail how a Kanban system could be utilized within this business.

5. How could employee empowerment be beneficial to a lean manufacturing operation? Provide three workplace examples.

An unstable nucleus with a mass of 16.3 × 10−27 kg initially at rest disintegrates into three particles. One of the particles, of mass 4.9 × 10−27 kg, moves along the positive yaxis with a speed of 4.5 × 106 m/s. Another particle, of mass 8.7 × 10−27 kg, moves along the positive x-axis with a speed of 3.4 × 106 m/s.

a) Find the speed of the third particle. Answer in units of m/s.

b) At what angle does the third particle move?

An unstable nucleus with a mass of 16.3 × 10−27 kg initially at rest disintegrates into three particles. One of the particles, of mass 4.9 × 10−27 kg, moves along the positive yaxis with a speed of 4.5 × 106 m/s. Another particle, of mass 8.7 × 10−27 kg, moves along the positive x-axis with a speed of 3.4 × 106 m/s.

a) Find the speed of the third particle. Answer in units of m/s.

b) At what angle does the third particle move?

A consumer advocacy group received a tip that an air conditioning company has been charging female customers more than male customers. The group's statistical expert decides examine this question at the α=0.10α=0.10 level of significance, by looking at the difference in mean charges between a random sample of female customers and a random sample of male customers. Let μFμF represent the average charges for female customers and μMμM represent the average charges for male customers.(Round your results to three decimal places)

Which would be correct hypotheses for this test?

• H0:μF−μM=0    H1:μF−μM≠0
• H0:μF−μM= 0 :H1:μF−μM<0
• H0:μF−μM=0 H1:μF−μM>0
• HO:μF−μM>0 H1:μF−μM<0

If we are going to test this using a confidence interval, which confidence interval should we construct?

• 80%
• 60%
• 90%
• 95%

A random sample of 33 female customers were charged an average of $915, with a standard deviation of $8. A random sample of 52 male customers were charged an average of $903, with a standard deviation of $17. Construct the confidence interval:

_____________ < μF−μ  < ____________________

Which is the correct result:

• 0 is contained in the confidence interval, so we Do not Reject the Null Hypothesis
• 0 is not contained in the confidence interval, so we Reject the Null Hypothesis
• 0 is not contained in the confidence interval, so we Do not Reject the Null Hypothesis
• 0 is contained in the confidence interval, so we Reject the Null Hypothesis

Which would be the appropriate conclusion?

• There is significant evidence to suggest that the company is charging its female customers more than its male customers.
• There is not significant evidence to suggest that the company is charging its female customers more than its male customers.