THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 85

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Monthly rates of return on the shares of a particular common stock are independent of one another and normally distributed with a standard deviation of 1.8.A sample of 15 months is taken.
-Find the probability that the sample standard deviation is more than 1.2.

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Definitions:

Test Value

A specific value used in hypothesis testing to compare against the statistic calculated from the sample data.

Chi-square Value

A statistical measure used to determine if a significant difference exists between the frequencies of observed and expected outcomes in one or more categories.

Respondents

Individuals who answer or respond to a survey or questionnaire.

Variable

A characteristic, number, or quantity that can be measured or quantified and can vary among subjects or over time.