For each of the following claims mention what kind of test should be used (one-t

Q: For each of the following claims mention what kind of test should be used (one-t

a) This is a right tailed test, by "no more than 60% chocolate". We seek to disprove that, so Ho: u 0.60 [ANSWER] ************** b) This is a right tailed test, by "at most $1000". We seek to disprove that, so Ho: u 1000 [ANSWER] ************* c) We seek to prove that it is indeed greater than 36 months, so this is a right tailed test: Ho: u 36 [ANSWER]

ID: 3396518 • Letter: F

Question

For each of the following claims mention what kind of test should be used (one-tail, two-tail) and set up the null and alternate hypothesis. Consider that the critical value is = CV. For each H0, mentioned the acceptance range. a) The Pastry shop claims that its chocolate cookies have no more than 60% chocolate per cookie. b) The 87Cents Store claims that their daily profit is at most $1000. c) A chemist invents an additive to increase the life of an automobile battery. The mean lifetime of the automobile battery with the additive will be greater than 36 months.

Explanation / Answer

This is a right tailed test, by "no more than 60% chocolate". We seek to disprove that, so

Ho: u <= 0.60
Ha: u > 0.60 [ANSWER]

**************

This is a right tailed test, by "at most $1000". We seek to disprove that, so

Ho: u <= 1000
Ha: u > 1000 [ANSWER]

*************

We seek to prove that it is indeed greater than 36 months, so this is a right tailed test:

Ho: u <= 36
Ha: u > 36 [ANSWER]

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For each of the following claims mention what kind of test should be used (one-t

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