1 - In a 2x2 table, if one cell frequency is known, A - all other cell frequenci

Question

1 - In a 2x2 table, if one cell frequency is known,

A - all other cell frequencies are determined

B - two other cell frequencies are determined

C - one other cell frequency is determined

D - none of the other cell frequencies is determined

2 - A researcher reports that her obtained chi square of -17.56 is significant because it exceeds the critical Chi square of -3.841 for an alpha of .05 with 2 degrees of freedom. What mistake has been made?

A - neither critical nor obtained Chi squares can have negative values

B - it is impossible to have only 2 degrees of freedom

C - it is impossible for obtained Chi square to exceed 10

D - a one-tailed test should have been used

3 - The Chi square test is based on the assumption that

A - the variables are dependent.

B - the expected frequencies are not produced by random chance.

C - samples are non-random.

D - the null hypothesis is true.

Explanation / Answer

1) In a 2x2 table, if one cell frequency is known,

Answer:D

2)A researcher reports that her obtained chi square of -17.56 is significant because it exceeds the critical Chi square of -3.841 for an alpha of .05 with 2 degrees of freedom. What mistake has been made?

Answer:A

3 - The Chi square test is based on the assumption that

Answer:C

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