Question

21. given that tabular t values of 2.093, 2.861 and 3.883 correspond to the .05, .01 and, .001 degrees of rarity respectively the p value for an observed t of 2.89 is best described as

a. p>,05

b. p<.05

c. p<.01

d. p>.01

23. The null hypothesis

a. is tested indirectly

b. makes a claim about a range of values

c. usually asserts that nothing special is happening with respect to some population characteristic

d. usually identified with the research hypothesis

24. A decision to reject the null hypothesis implies that

a. there is a lack of support for the alternative hypothesis

b. there is support for the alternative hypothesis

c. the sample is probably not representative

d. the sample size is probably inadequate

Answer 1

Ques21

c. p<.01

This because,

Now,

As   

Ques22

c. usually asserts that nothing special is happening with respect to some population characteristic.

The null hypothesis is the statement that will be directly tested. The null hypothesis proposes that no statistical significance exists in a set of given observations. The null hypothesis attempts to show that no variation exists between variables or that a single variable is no different than its mean.

Ques 23

b. there is support for the alternative hypothesis

This is prety much obvious. We reject null hypothesis when we have sufficient evidence to accept the alternative hypothesis.