Can company claim that they are faster than average utility

Assignment Help Basic Statistics
Reference no: EM13136753

Nationwide, the average waiting time until a electric utility customer service representative answers a call is 250 seconds per call. The Gigantic Kilowatt Energy Company took a sample of 45 calls and found that, on the average, they answered in 230 seconds per call with a standard deviation of $40. Can the company claim that they are faster than the average utility?

Reference no: EM13136753

Questions Cloud

Describe what the law code of hammurabi : The Law Code of Hammurabi Describe what the Law Code of Hammurabi reveals about Babylonian culture; consider relations between men and women, slaves and freemen.
Public policy correlation with public preferences : Public policy ought to reflect public preferences. Do you think public policies are in accordance with your wishes? Why or why not? Provide appropriate rationale to support your opinion.
Annual payments to the trustee : The corporation makes annual payments to the trustee, who invests the proceeds in securities (frequently government bonds) and uses the accumulated total to retire the bond issue at maturity.
What increase in profit can be expected assuming total fixed : Brumlow Company has a contribution margin ratio of 25%. The company is considering a proposal that will increase sales by $100,000. What increase in profit can be expected assuming total fixed costs increase by $20,000?
Can company claim that they are faster than average utility : They answered in 230 seconds per call with a standard deviation of $40. Can the company claim that they are faster than the average utility?
Why would royal carpet cleaning accept credit cards instead : Why would Royal Carpet Cleaning accept credit cards instead of providing credit directly to its customers? In other words, why would Royal be willing to pay 3 percent of sales to have the credit card company handle its sales on account?
Compute operating income from the windstream project : NBS, Inc. is a technology consulting firm focused on Website development and integration of Internet business applications. The president of the company expects to incur $719,600 of indirect costs this year, and she expects her firm to work 8,000 ..
Briefly distinguish between financial-managerial accounting : Briefly distinguish between financial and managerial accounting as they relate to (1) the primary users, (2) the type and frequency of reports
Short set of instructions in numbered steps : Exercise 1: Write a short set of instructions in numbered steps (or in paragraph format) on one of the following relatively simple activities

Reviews

Write a Review

Basic Statistics Questions & Answers

  Describing grouped or ungrouped frequency distribution

Number of miles flown in a One- year period by the sample of "frequent flyers" was  recorded. Is this a grouped or an ungrouped frequency distribution?

  Evaluate-five step testing hypothesis

The following sample data shows the quarterly earnings in millions for two US companies. Your research interest is finding if the average earnings for these companies are different.

  Hyopthesis testing of boats

A board of directors at the Anchor Pointe Marina is studying the usage of boats among its members. A sample of 30 members who have bots 10 to 20 feet in length showed that they used their boats an average of 11 days last July.

  Sample size-nickel

A previous study of nickels showed that the standard deviation of the weight of nickels is 150 milligrams.

  Examine data by creating the confidence interval of means

martindate were tester which can compare two materials in sigle run, weights losses from seven runs. Examine these data by creating the 90% confidence interval for difference of means. Define your assumption.

  Assumptions of t distribution

Explain why we need to use the t distribution. What assumption do you need to make?

  Probability and binomial distribution

There are 10 questions on a true-false test. A student feels unprepared for this test and randomly guesses the answer for each of these.

  Confidence interval for the population mean

Based on this sample information, develop a 90 percent confidence interval for the population mean yearly premium.

  Confidence and estimated standard deviation

If the estimate is to be within 8 mpg of the true mean with 98% confidence and the estimated standard deviation is 22 mph, how large a sample size must be taken?

  Mean difference test

How can you or your department decide whether or not the variation is important? How could using a mean difference test help?

  Discrete probability and discrete data

A discrete probability is the likelihood that certain discrete data will occur. What is discrete data? Consider a scenario where you could use a discrete probability to predict the likelihood of an event.

  Create confidence interval for the true mean weight

Construct a 90 percent confidence interval for the true mean weight. (b) What sample size would be necessary to estimate the true weight with an error of 0.02 grams with 90 percent confidence?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd