Testing the hypothesis-the mean

Assignment Help Basic Statistics
Reference no: EM1399672

According to Management Accounting, salary figures for certified management accountants (CMAs) who are in the field less than 1 year are normally distributed with a mean of $31,129. A random sample of 15 first-year CMAs in Denver produces a mean salary of $32,279, with a standard deviation of $1,797. Test the hypothesis that the mean for all Denver first-year CMAs is not equal to $31,129. Use the .05 level of significance.

Reference no: EM1399672

Questions Cloud

Pros and cons of united airlines outsourcing strategy : As the industry watches to see how United Airlines' strategy performs against American Airlines' strategy, management at United Airlines is anxiously monitoring market signs to determine its next competitive move.
Describe how you will visually represent the comparison : Describe how you will visually represent the comparison of the total annual sales at the individual stores for each of the three years
Discuss risks of doing business in different regions : At the conclusion of Baidu's final strategic planning session, Robin Li (Cofounder, Chairman, and CEO) assigned you to prepare a written report and announcement that would be presented to the company's shareholders and included in a public statement.
What are few of the operations management practices : What are few of the operations management practices that can help bring manufacturing back to the U.S? How can an emphasis on quality improve manufacturing?
Testing the hypothesis-the mean : A random sample of 15 first-year CMAs in Denver produces a mean salary of $32,279, with a standard deviation of $1,797. Test the hypothesis that the mean for all Denver first-year CMAs is not equal to $31,129. Use the .05 level of significance.
Explain hrm function to ensure a maximum relationship : HRM must forge relationships with line managers as well as win their support. Why must line managers resist letting HRM members become a part of the team? How would you establish the company and HRM function to ensure a maximum relationship
Define liability of foreignness and regionalism : Define liability of foreignness and regionalism. Describe corporate strategic alliance and discuss why a company would want to develop one. Are strategic alliances necessary for a company to expand internationally?
Define crystal agreed to serve on a company''s advisory board : Leave from the advisory board before the meeting date. D. Let the company distinguish she cannot not attend as well as that they will have to make arrangements for another speaker
Conducting a test to see if machine is operating properly : A Patent Medicine Company supervisor assumes that the bottling machine is operating properly if only 5 percent of the processed bottles are not full. A random sample of 100 bottles had 7 bottles that weren't full. Using a significance level of .01..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Case of age discrimination-sample standard deviation

Consider the following situation describing layoffs at a manufacturing plant of the Monsanto Company. Does there appear to be a case of age discrimination between those laid off and those non-laid off?

  Hypothesis test for difference between population proportion

Using alpha = 0.05 and a computed value of +4.49, can we conclude that the percentage of claims for married policyholders is less then for single policyholders?

  Testing population mean for specified value

At the .05 significance level, is the number of units produced on the afternoon shift larger?

  Measures of the change in test scores

Create one table that calculates summary measures of the change in test scores and income variables across all 80 schools.

  Probability of getting a queen and a spade

Find the probability of getting a queen and a spade.

  Data screening related to the assumptions of statistic

How is data screening related to the assumptions of the statistic you will choose to analyze your data?

  Anova-regression analysis examples

Give an example of a problem (business, political, scientific) in which ANOVA analysis would be appropriate. (Hint: the dependent variable is categorical, such as male vs. female or comparing three different types of fertilizer.)

  Random sample of five accidents

A random sample of five accidents resulted in the following number of persons injured: 18, 15, 12, 19, & 21. Using the .01 significance level, can we conclude the population mean is less than 20 for all accidents?

  Mean weight of adult women

To investigate this belief, he randomly samples 41 adult women and records their weights. The scores have a mean of 111 lbs. and a standard deviation of 12.4. A local census taken several years ago shows the mean weight of adult women was 115 lbs.

  Probability by poisson distribution

Setermine the probability that a specific driver had exactly two violations?

  Test for independence-chi square

Sixty-four students in an introductory college economics class were asked how many credits they had earned in college, and how certain they were about their choice of major.

  Testing an esp clalim

A coin is tossed 20 times. A person, who claims to have ESP is asked to predict the outcome of each flip in advance. She predicts correctly on 14 tosses.

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