Test the mean difference for significance

Reference no: EM131118087

The scores on a (hypothetical) vocabulary test of a group of 20 year olds and a group of 60 year olds are shown below

a. Test the mean difference for significance using the .05 level.

b. List the assumptions made in computing your answer.

Reference no: EM131118087

Questions Cloud

Company presence on social media sites : Choose a familiar product and evaluate the company's presence on social media sites (Twitter, Facebook, Instagram, and Pinterest, for example). Include examples and links, as appropriate. How does the company use social media? What changes do you ..

The sampling distribution of a statistic : The sampling distribution of a statistic is normally distributed with an estimated standard error of 12 (df = 20). (a) What is the probability that you would have gotten a mean of 107 (or more extreme) if the population parameter were 100?

Environmental factors provide opportunities : 1. Company: What are our goals, and what measures will be used to determine if we are on track? What strengths and weaknesses do we see in our brand and organization? 2. Context: What environmental factors provide opportunities or limit our options..

Entries for equipment acquisitions chopin engineering : Chopin traded in equipment with a book value of $2,000 (initial cost $8,000), and paid $14,200 in cash one month after the purchase.

Test the mean difference for significance : The scores on a (hypothetical) vocabulary test of a group of 20 year olds and a group of 60 year olds are shown below

Market-based segments of the health care organization : Describe market-based segments of the health care organization you selected. Include demographic characteristics of segmented consumers that influence buying behaviors of the market. Then, analyze how the organization is responding to these market..

Effect of alcohol on perceptual motor ability : A (hypothetical) experiment is conducted on the effect of alcohol on perceptual motor ability. Ten subjects are each tested twice, once after having two drinks and once after having two glasses of water.

Communication affects your life : Discuss how communication plays a role in academic, professional, personal, and civic aspects of your life. Next, provide two (2) examples of how communication affects your life.

Capitalization of interest the following three situations : Capitalization of Interest the following three situations involve the capitalization of interest

User Account

All Pages