4.10: testing to see if there is evidence that a correlation between height and

Question

4.10: testing to see if there is evidence that a correlation between height and salary is significant (that is, different than zero)

SKILL BUILDER 3 In Exercises 4.9 to 4.13, a situation is described for a statistical test. In each case, define the rele- vant parameter(s) and state the null and alternative hypotheses 4.9 Testing to see if there is evidence that thepro portion of people who smoke is greater for males 2 than for females 4.10 Testing to see if there is evidence that a corre- lation between height and salary is significant (that is, different than zero) the ing nts. 4.11 Testing to see if there is evidence thai the ercentage of a population who watch the ione Shopping Network is less than 20% 4.12, Testing to see if average sales are higher in stores where customers are approached by sales- people than in stores where they aren't 4.13 Testing to see if there is evidence that the mearn timé spent studying per week is different between first-year students and upperclass students

Explanation / Answer

Null HYpothesis:

let h be height and s be salary and is the average

Ho: h -s =0

ALternative Hypothesis

H1: h -s0

Alternative Hypothesis is claim.

Its a two tail t test.

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