Which of the following is the correct hypotheses setup? a. H0: Notebook and port

Question

Which of the following is the correct hypotheses setup?

a.          H0: Notebook and portable computers are independent

H1: Notebook and portable computers are dependent

b.         H0: Notebook and portable computers are dependent

H1: Notebook and portable computers are independent

c.        H0: Type of computer and When purchase will be made are independent

H1: Type of computer and When purchase will be made are dependent

d.            H0: Type of computer and When purchase will be made are dependent

H1: Type of computer and When purchase will be made are independent

None of the above are correct

Which of the following are the variables in the problem?

a.            Notebook/portable computers

b.             Type of Computer

c.             When purchase will be made

d.             0 to 12 Months

e.             (b) and (c)

f.          None of the above is the correct answer

Using the p-value as the decision rule, at significance level of 0.01, which of the following is the correct interpretation of the statistical conclusion?

a.      The variables notebook/portable and desktop computers are independent

b.      The variables notebook/portable and desktop computers are not independent

c.       The variables Type of computer and When purchase will be made are independent

d.       The variables Type of computer and When purchase will be made are not independent

e.        None of the above

A computer magazine surveyed its readers to determine how likely it was that people who planned to purchase new computers in the near future would buy a portableinotebook or desktop model. The results are tabulated here: When Purchase Will be Made ype o pu 0 to 3 Months 3 to 6 Montns 56 346 123

Explanation / Answer

Correct hypotheses:

H0: Type of computer and When purchase will be made are independent.

H1: Type of computer and When purchase will be made are dependent.

Option C is correct.

Variables: Type of Computer and when the purchase will be made are the variables.

Option e is correct.

The variables Type of computer and When purchase will be made are not independent.

Option D is correct.

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