State the hypothesis and test statistic

Assignment Help Basic Statistics

Reference no: EM1321156

An insurance industry report indicated that 40 percent of those persons involved in minor traffic accidents this year have been involved in at least one other traffic accident in the last five years. An advisory group decided to investigate this claim, believing it was too large. A sample of 200 traffic accidents this year showed 74 persons were also involved in another accident within the last five years. Use the .01 significance level.

a. Can we use z as the test statistic? Tell why or why not.

b. State the null hypothesis and the alternate hypothesis.

Reference no: EM1321156

Questions Cloud

Hypothesis test for single mean : Hypothesis test for single mean

Theory of performance feedback views : The theory of performance feedback views decision makers as problem solvers seeking to improve performance. By specifying how and when decision makers may instead seek to enhance their self-image by assessing performance as satisfactory

Explain the security mechanisms available for a database : Use technology and information resources to research issues in database systems. Write clearly and concisely about relational database management systems using proper writing mechanics and technical style conventions.

Strategic issues and problems of unilever : What are the Strategic issues and problems that Unilever in India: Hindustan Lever's Project Shakti? A problem well-defined is half solved therefore your analysis must contain a clear statement as to the underlying problem facing the organization.

State the hypothesis and test statistic : A sample of 200 traffic accidents this year showed 74 persons were also involved in another accident within the last five years. Use the .01 significance level. Can we use z as the test statistic? Tell why or why not.

Lawsuit for fraudulent mispresentation : Assume that Anthony had contacted various users of Yahoo's online dating service only to discover that each user's profile exaggerated the user's physical appearance, intelligence, and occupation. Would Anthony prevail if he brought a lawsuit for ..

Find p value and critical value : At the .01 significance level can we conclude the mean age is more than 8.4 years for the cars of university students? What is the p-value?

Find the sample mean and sample standard deviation : find that the sample mean and sample standard deviation

Employment discrimination in european union : Investigate any laws that prohibit employment discrimination in European Union, Australia, Japan & China. Note similarities and differences from American laws. What values or assumptions do the laws of these countries make about the employment rel..

User Account

All Pages