Perform the Indicated Hypothesis Test $$\alpha$$ α = 005

question 11

Essay

Perform the indicated hypothesis test. Be sure to do the following: identify the claim and state the null and alternative
hypotheses. Determine the critical value and rejection region. Calculate the test statistic. Decide to reject or to fail to
reject the null hypothesis and interpret the decision in the context of the original claim. Assume that the samples are
independent and that each population has a normal distribution.
-A medical researcher suspects that the variance of the pulse rate of smokers is higher than the variance of the
pulse rate of non-smokers. Use the sample statistics below to test the researcherʹs suspicion. Use $$\alpha$$ α = 0.05. $\begin{array}{c}\begin{array}{lll} \text { Smokers}\\\mathrm{n}_{1}=61\\\\\mathrm{s} 1=7.8\end{array}\begin{array}{lll} \text {Non-smokers}\\\mathrm{n}_{2}=121\\\\\mathrm{s}_{2}=5.3\end{array}\end{array}$

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Definitions:

Coach

A peer or manager who works with an employee to motivate the employee, help him or her develop skills, and provide reinforcement and feedback.

Motivate

To provide someone with a reason or incentive to do something.

Reinforcement

A concept in behavior psychology where the frequency of a behavior is increased by following it with a reinforcement, which can be positive or negative.

Externship

Employee development through a full-time temporary position at another organization.