Estimate the average time spent on computer terminals

Assignment Help Basic Statistics
Reference no: EM13136782

In order to estimate the average time spent on the computer terminals per student at a localuniversity, data were collected for a sample of 81 business students over a one-week period. Assume the population standard deviation is 1.8 hours. with a ,95 probability, the margin of error is approximately.

Reference no: EM13136782

Questions Cloud

What are partial pressure of co2 (g) : For the equation: C (s) + CO2 (g) -> 2CO (g); the value of Kp is 167.5 at 1000 oC. If a 5.00 L container initially contains 2.99 atm pressure of CO2 (g) at 1000 oC, what are partial pressure of CO2 (g) and CO (g) at equilibrium?
Describe the accounting rules and regulations : Describe the accounting rules and regulations you would introduce to ensure that these types of accounting irregularities do not occur in the future.
What is opinion of genetic engineering, and genetic man : What is your opinion of genetic engineering, and genetic manipulation (such as cross breeding). How do you think these technologies will affect natural selection. Will it become more of an "unnatural selection?" What affects may this have on culture
Public policy and interest groups : Define the role of interest groups in shaping and creating public policy. How could you benefit by participating in an interest group, such as an environmental club or a gun association?
Estimate the average time spent on computer terminals : Sample of 81 business students over a one-week period. Assume the population standard deviation is 1.8 hours. with a ,95 probability, the margin of error is approximately.
How does this differ from the other forms of accounting : There are many different types of jobs in accounting, and one of those has to do with Management Accounting. How does this differ from the other forms of Accounting?
Public policy on bailouts : The federal government has offered or, in some cases, even forced loans or bailouts to banks, insurance companies, and automobile manufacturers.
Journal entries to record the transactions : Provide the necessary journal entries to record the transactions for Wilcox for the period January 2, 2011 through December 31, 2012.
Determine the service cost component of the net pension cost : Carlson Company sponsors a single-employer defined benefit pension plan. The plan provides that pension benefits are determined by age, years of service, and compensation.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Normal model with a mean

A bank's loan officer rates applicants for credit. The ratings can be described by a Normal model with a mean of 200 and a standard deviation of 50.

  Hypergeometric formula to find the probability

Use the hypergeometric formula to find this probability. The lottery commission also pays if a contestant matches 4 or 5 of the 6 winning numbers. Hint: Divide the 44 numbers into two groups, winning numbers and nonwinning numbers.

  Find out standard deviation to produce aa batteries

Based on testing, company makes following statement: "Our batteries last the average of 430 to 470 minutes, and our confidence in that interval is 95%" Find out standard deviation and show work.

  Explanation to expected return

Assume the risk-free interest is 5%. If WT borrows $100 million today at this rate and uses the proceeds to pay an immediate cash dividend, what will be the market value of its equity just after the dividend is paid, according to MM?

  Mean squares and population variance

What is the value of the mean square for error (the "within groups" mean square that would be reported in the ANOVA test, and what is the value of the mean square for treatments (the "between groups" mean sqaure) that would be reported in the ANOVA ..

  Fraction of the calls-probability distribution

What fraction of the calls last between 4.2 and 5 minutes?

  Measure of dispersion for given data

The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, and 10.

  Continuous use in a sample of batteries

A company has set a goal of developing a battery that lasts over 5 hours in continuous use in a sample of 42 of these batteries the mean life time was 306.25 hours with a standard deviation of 29.31

  Compute the value of the test statistic

A simple random sample of 50 adults is obtained, and each person's red blood cell count (in cells per microliter) is measured. The sample mean is 5.23 and the sample standard deviation is 0.54. Use a 0.01 significance level to test the claim that ..

  Calculate the importance score sum for option a

Identifies four criteria and their corresponding percentage weights. Option A has ranks as shown in the table below: Calculate the importance score sum for option A?

  Probability-binomial tends to normal

Effectiveness White flies are devastating California crops. An area infested with white flies is to be sprayed with a chemical which is known to be 98% effective for each application.

  Develop confidence interval for proportion of population

Develop a 95% confidence interval for the proportion of the population of adults who feel customer service is better today than it was 2 years ago.

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