An experiment is conducted to determine if classes offered in an online format are as effective as classes offered in a traditional classroom setting. Students were randomly assigned to one of the two teaching methods. Final exam scores reported below. a. Test the claim that the standard deviations for the two groups are equal. What is the p-value of the test? b. Construct a 95% confidence interval on the difference in expected final exam scores between the two groups. Does the data support the claim that there is no difference? Do not use mini tab

Test the hypotheses that 1) systolic pressure [and 2) diastolic pressure, for practice] differs between men and women, with an α of 0.05 for both. What test would be most appropriate and why? Are the results significant? State your conclusions.

A company manufactures printers and fax machines at plants located in Atlanta, Dallas, and Seattle. To measure how much employees at these plants know about quality management, a random sample of 6 employees was selected from each plant and the employees selected were given a quality awareness examination. The examination scores for these 18 employees are shown in the following table. The sample means, sample variances, and sample standard deviations for each group are also provided. Managers want to use these data to test the hypothesis that the mean examination score is the same for all three plants.

Set up the ANOVA table for these data. (Round your values for MSE and F to two decimal places, and your p-value to four decimal places.)

Test for any significant difference in the mean examination score for the three plants. Use

α = 0.05.

Which of the following is NOT an assumption of the traditional economic order quantity (EOQ) model?

a. Holding and ordering costs are stable and known.

b. Demand is constant and known.

c. Supply lead time is constant and known.

d. Quantity discounts are possible.

Kim’s Nail Salon uses a weighted moving average method to forecast demand. She assigns a weight of 5 to the previous month’s demand, 3 to demand two months ago, and 2 to demand three months ago. If demand was 800 customers in April, 900 customers in May, 1,200 customers in June, and 2,000 customers in July, what should her forecast for August be?

a. 1,540

b. 910

c. 1,400

d. 1,210

Statewide Insurers receives 600 applications per month. Currently, there are 60 applications in the Reception area and 140 applications with the Underwriting team. How long does Receiving take to process an application? Assume that there are 20 working days per month.

a. 2 days

b. 3 days

c. 7 days

d. 10 days

Based on experience, the manager at the Giraffe Hotel decides to accept a reservation for a party of 12 guests knowing that his hotel is sold out. He is accepting the reservation because:

a. he can cancel the reservations of the 12 lowest-paying guests and get more revenue from the new guests

b. he can make arrangements with the neighboring hotel to accept the 12 guests

c. he is using overbooking techniques and has determined that he can safely accept the 12 guests

d. he knows he will have 6 cancellations and 6 no-shows among the current reservations

A manufacturing firm finds a location using the center of gravity method but rejects that location because they are unable to efficiently transport the finished goods to market. The firm’s action illustrates the link between __________ and location.

a. proximity

b. clustering

c. infrastructure

d. globalization

Researchers at two universities found that airlines are doing a better job of getting passengers to their destinations on time. Company A and Company B Airlines were among the leaders in on-time arrivals with both having 88% of their flights arriving on time. But for the 12% of flights that were delayed, how many minutes were these flights late? Sample data showing the number of minutes that delayed flights were late are shown below for both airlines. Use Excel to run a two-sample t-test assuming unequal variances to answer the questions.

(a)

Formulate the hypotheses that can be used to test for a difference between the population mean minutes late for delayed flights by these two airlines. (Let μ₁ = population mean minutes late for delayed Company A flights and μ₂ = population mean minutes late for delayed Company B flights.)

H₀: μ₁ − μ₂ ≤ 0

H_a: μ₁ − μ₂ > 0

H₀: μ₁ − μ₂ ≥ 0

H_a: μ₁ − μ₂ < 0

H₀: μ₁ − μ₂ = 0

H_a: μ₁ − μ₂ ≠ 0

H₀: μ₁ − μ₂ ≠ 0

H_a: μ₁ − μ₂ = 0

H₀: μ₁ − μ₂ < 0

H_a: μ₁ − μ₂ = 0

(b)

What is the sample mean number of minutes late for delayed flights for each of these two airlines? (Round your answers to two decimal places.)

Company A minCompany B min

(c)

Calculate the test statistic. (Round your answer to three decimal places.)

What is the p-value? (Round your answer to four decimal places.)

p-value =

Using a 0.05 level of significance, what is your conclusion?

Do not Reject H₀. There is statistical evidence that one airline does better than the other in terms of their population mean delay time.Reject H₀. There is statistical evidence that one airline does better than the other in terms of their population mean delay time.    Reject H₀. There is no statistical evidence that one airline does better than the other in terms of their population mean delay time.Do not reject H₀. There is no statistical evidence that one airline does better than the other in terms of their population mean delay time.

Are the following items included in GDP? If they are not, briefly (1 sentence) explain why they are not.

1. Delta sells one of its existing airplanes to Korean air.
2. A California winery produces a bottle of Chardonnay and sells it to a customer in Montreal, Canada
3. An American buys a bottle of French perfume.
4. A college student buys pizza for dinner.

1. Nominal GDP in 2003                ________________
2. Nominal GDP in 2004                ________________
3. Real GDP in 2003                      ________________
4. Real GDP 2004                          ________________

The Consumer Price Index (CPI) is the most popular indicator of inflation.  Consider the price and consumption data given below.

(a)     Using 2000 as the base year compute the value of the CPI for the years 2003 and 2004            (2000 = 100).

(b)     Briefly interpret your results using the CPI that you have calculated.

(c)     Compute the annual inflation rate for the years 2003 and 2004.

Please explain these 3 question on NIKE on their sensitive , revenue value quality prestige etc

• How sensitive are your customers to changes in price?
• What revenue do you need to break even and achieve profitability?

• What does the price say about your product in terms of value, quality, prestige, etc.

Customers arrive at a grocery store at an average of 2.2 per minute. Assume that the number of arrivals in a minute follows the Poisson distribution. Provide answers to the following to 3 decimal places.

Part a)

What is the probability that exactly two customers arrive in a minute?



Part b)

Find the probability that more than three customers arrive in a two-minute period.



Part c)

What is the probability that at least seven customers arrive in three minutes, given that exactly two arrive in the first minute?

Assessing Revenue Recognition Timing and Income Measurement Discuss and justify when each of the following businesses should recognize revenue and identify any income measurement issues that are likely to arise.

a. RealMoney.Com, a division of TheStreet.Com provides investment advice to customers for an up-front fee. It provides these customers with password-protected access to its website where customers can download certain investment reports. Real Money has an obligation to provide updates on its website.

b. Oracle Corporation develops general ledger and other business application software that it sells to its customers. The customer pays an up-front fee to gain the right to use the software and a monthly fee for support services.

c. Intuit Inc. develops tax preparation software that it sells to its customers for a flat fee. No further payment is required and the software cannot be returned, only exchanged if defective. d. A developer of computer games sells its software with a 10-day right of return period during which the software can be returned for a full refund. After the 10-day period has expired, the software cannot be returned.