Suppose Apple Would Like to Test the Hypothesis That the Standard

question 34

Multiple Choice

Suppose Apple would like to test the hypothesis that the standard deviation for the web-browsing battery life of the iPad is different from 3.0 hours. The following data represents the battery life, in hours, experienced by a random sample of six users: 10 14 12 16 10 6. A 95% confidence interval for variance of the battery life is given by [4.78, 73.79]. What is the decision and conclusion?

• A) Reject the null hypothesis, we can conclude the standard deviation is different from 3 hours.
• B) Reject the null hypothesis, we cannot conclude the standard deviation is different from 3 hours.
• C) Do not reject the null hypothesis, we can conclude the standard deviation is different from 3 hours.
• D) Do not reject the null hypothesis, we cannot conclude the standard deviation is different from 3 hours.

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Definitions:

Strategic Purposes

Objectives or goals that are designed to achieve the long-term vision of an organization through planned and purposeful actions.

Equity Securities

Financial instruments representing ownership interest in a corporation, such as stocks.

Debt Investments

Financial assets involving lending money to an entity (corporate or governmental) that borrows the funds for a defined period at a variable or fixed interest rate.