### Problem regarding the confidence interval for the mean

Assignment Help Accounting Basics
##### Reference no: EM13975490

The service manager of Appliance Universe has recorded the times for a simple random sample of 50 refrigerator service calls taken from last year's service records. The sample mean and standard deviation were 25 minutes and 10 minutes, respectively.

a. Construct and interpret the 95% confidence interval for the mean.

b. It's quite possible that the population of such times is strongly skewed in the positive direction-that is, some jobs, such as compressor replacement, might take 3 or 4 hours. If this were true, would the interval constructed in part (a) still be appropriate? Explain your answer.

#### Memorial hospital case study

Memorial Hospital. Read the "Memorial Hospital" case study in Chapter 4 of your text. Answer questions 1- 4 in a two- to- four (2-4) page paper in accordance with APA guidel

#### Amount of financial depreciation

Prior to and during 2016, Shadrach Company reported tax depreciation at an amount higher than the amount of financial depreciation, resulting in a book value of the deprecia

#### What are the potential proprietary costs

What are the potential proprietary costs from expanded disclosures in each of these areas? If you conclude that proprietary costs are relatively low for either, what alterna

#### The governor and his college age

The governor and his college age daughter are talking after dinner. The governor has had a rough day at the office discussing the state budget problems The daughter is home

#### Inventory to manipulate income

How could management use inventory to manipulate income? What is the difference between periodic and perpetual inventory systems? Which items and costs should be included in i

#### Powerpoint slide presentation - capital budgeting analysis

You are looking for additional funding for your cookie company and will prepare a presentation for investors - In a clear, professional and concise manner prepare a PowerPoin

#### Contribution margin ratio equivalent

Arnold Corp has a selling price of \$20, variable costs of \$15 per unit, and fixed costs of \$25,000. If Arnold sells 12,000 units, the contribution margin ratio will equal:

#### Apatha company has assets of \$600000 liabilities of \$250000

1. The primary objective of financial accounting is: 2. Apatha Company has assets of \$600,000, liabilities of \$250,000 and equity of \$350,000. It buys office equipment on cred