8 questions , state the null and alternative hypotheses, statistics homework help

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Natryvp

Mathematics

Description

1.For the following conjecture, state the null and alternative hypotheses. The average age of community college students is 24.6 years.

2. For the following conjecture, state the null and alternative hypotheses.The majority of college students have credit cards.

3. For the following conjecture, state the null and alternative hypotheses. The average pulse of male marathon runners is less than 70 beats per minute.

4. For the following conjecture, state the null and alternative hypotheses.The proportion of homes with extinguishers is 0.80.

5. Find the critical value, assuming that the normal distribution applies. Two-tailed test, alpha = 0.01

+/- 2.5758

2.5758

-2.5758

+/-0.01

0.01

-0.01

6. Find the critical value, assuming that the normal distribution applies.Right-tailed test,

alpha = 0.02

2.05

+/-2.05

-2.05

+/-0.02

-.0.02

0.02

7.

The critical region is defined by the critical value -2.33. The test statistic value is 1.7. Would you reject or fail to reject the hypothesis?

8. The critical region is defined by the critical values . The value of the statistic is 1.8. Would you reject or fail to reject the hypothesis?

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Explanation & Answer

H0: µ=24.6 and H1: µ≠24.6...

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