Testing single mean and testing difference

Assignment Help Basic Statistics
Reference no: EM13110966

Explain the difference between testing a single mean and testing the difference between two means.

What two assumptions must be met when one is using z test to test differences between two means?

Reference no: EM13110966

Questions Cloud

Explain fixed charge coverage cannot be computed : If a firm has both interest expense as well as lease payments, A) Fixed charge coverage cannot be computed. B) Time's interest earned will be smaller than fixed charge coverage.
State the hypotheses for the study : Define the population. State the hypotheses for the study. Decide which statistical test is appropriate and compute the test statistic (z or t). Why is the test appropriate?
Describe how the changes in the flsa were enacted : Describe how the changes in the FLSA were enacted, and deliberate the opinions and concerns that different associations, special interest groups and political groups had at the time.
Compare and contrast the contingency and path goal : Compare and contrast the Contingency, Path-Goal, and Leader Member Exchange Theories. Describe the similarities and differences of each leadership theory.
Testing single mean and testing difference : Explain the difference between testing a single mean and testing the difference between two means. What two assumptions must be met when one is using z test to test differences between two means?
Thyroid hormone receptor and sleep-wake cycle : Describe the relationship between thyroid hormone receptor and sleep-wake cycle,  Please list all the sources you used to answer the question (description of the pathway)
What standard deviation is required for diameter of dot : Assume that specifications require dot diameter to be between 0.0014 and 0.0026 inch. If probability that the dot meets specifications is to be 0.9875, what standard deviation is required?
Analyze klimpton strategy for being environmentally friendly : Analyze Klimpton's strategy for being environmentally friendly. Determine how this strategy helps Klimpton make supplier channel decisions and manage the waste from its hotel and restaurant operations.
Deliberate performance oriented compensation system : How do the JC Penney vagaries at compensation reflect a total rewards approach. Deliberate why JC Penney's shift to a more performance oriented compensation system

Reviews

Write a Review

Basic Statistics Questions & Answers

  Difference in the mean credit card debt

Researchers wanted to determine if there is a difference in the mean credit card debt owed by males versus females. Using α = 0.10, is there a difference. (Show all six steps of hypothesis testing.)

  Sensitivity and specificity of the test

Using this test 80% of Down's syndrome cases can be identified at birth, while 5% of normals are detected as positive. a. What is the sensitivity and specificity of the test?

  What is the level of measurement for the variable

What is the level of measurement for the variable, "political ideology" measured as "Very Conservative", "Conservative","Moderate", "Liberal" and "Very Liberal".

  Relevant population and source basics

Describe the relevant population and the source (e.g. newspaper, TV, radio, internet, etc.). Explain why you do not believe it is accurate.

  Percentage of women who meet height requirement

A survey found that women's heights are normally distributed with mean 63.6 in and standard devistion 2.5 in. a branch of the military requires women's heights to be between 58 in and 80 in. What is the percentage of women who meet the height requ..

  Testing a new drug researchers

In testing a new drug, researchers found that 20% of all patients using it will have a mild side effect. A random sample of 15 patients using the drug is selected. Find the probability that:

  Surival rate for caucasians for all forms

The five year surival rate for Caucasians for all forms increased from 37% in 1960 to 58% now. Express this change in two ways (1) as an absolute difference in terms of percentage points and (2) as a relative difference in terms of percent.

  Hypothesis test for one sample proportion

At 95% confidence using the critical value approach, test to see if the percentage of defective systems produced by x-Game has exceeded the industry standard.

  Creating confidence interval for mean daily intake of milk

Create a 99 percent confidence interval for mean daily intake of milk.  You may suppose daily intake amounts are usually distributed.

  Determining quantitative techniques

Four students riding to school together offer a the excuse of a flat tire on their car for missing a test. On the makeup test, the professor asks the students to each identify the tire that went flat.

  Statistics-probability-distribution

Consider a random sample of six families who are asked if their children have an influence on their vacation destination.

  Exponential variable lambda-variance

Assume X is an exponential random variable with parameter lambda. Find the method of moments estimator for lambda.

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