Write appropriate hypotheses

Assignment Help Accounting Basics

Reference no: EM131008434

The average age of online consumers a few years ago was 23.3 years. As older individuals gain con- fidence with the Internet, it is believed that the average age has increased. We would like to test this belief.

a) Write appropriate hypotheses.

b) We plan to test the null hypothesis by selecting a random sample of 40 individuals who have made an online purchase during 2007. Do you think the necessary assump- tions for inference are satisfied? Explain.

c) The online shoppers in our sample had an average age of 24.2 years, with a standard deviation of 5.3 years. What's the P-value for this result?

d) Explain (in context) what this P-value means.

e) What's your conclusion?

Reference no: EM131008434

Questions Cloud

Research new network observation tools : Research new network observation tools that use enhanced techniques, such as virtual machine-based code execution, to detect unwanted network traffic (e.g., botnet activity or malware activity that is not detectable by traditional Anti-virus techniqu..

Problem regarding the fuel economy : A company with a large fleet of cars hopes to keep gasoline costs down and sets a goal of attaining a fleet average of at least 26 miles per gallon. To see if the goal is being met, they check the gasoline usage for 50 company trips chosen at rand..

How to control their impulses recognize feelings of others : Some students took part in a program beginning in elementary school in which teachers showed children how to control their impulses, recognize the feelings of others, and get what they want without aggressive behavior. Others did not participate i..

Vba programming homework : VBA Programming homework: 1. A cosine can be approximated by the following infinite series: cosx=1-(x2/2!)+(x4/4!)-(x6/6!)+...

Write appropriate hypotheses : The average age of online consumers a few years ago was 23.3 years. As older individuals gain con- fidence with the Internet, it is believed that the average age has increased. We would like to test this belief.

Footnote disclosures that would be necessary : Manner of reporting the change under current generally accepted accounting principles including a discussion, where applicable, of how amounts are computed.

Null hypothesis of increased sleepwalking : The manufacturer of a new sleeping pill suspects that it may increase the risk of sleepwalking, which could be dangerous. A test of the drug fails to reject the null hypothesis of increased sleepwalking when tested at alpha = .01.

How many mechanics would be at the counter : How many mechanics would be at the counter, including being served and what probability that a mechanic would have to wait for service?

Confidence interval provide evidence to support the claim : 1. Economy. In 2008, a Gallup Poll asked 2336 U.S. adults, aged 18 or over, how they rated economic conditions. In a poll conducted from January 27 through February 1, 2008, a) Does your confidence interval provide evidence to support the claim.

User Account

All Pages