Question

If we know the population standard deviation, we can use which table to do a hypothesis test?

Group of answer choices

Z-table

T-table

Critical table

Significant table

In the critical value approach, to make a decision, we compare the critical value with the:

Group of answer choices

Test statistic

p-value

Hypothesized value

Population parameter

In the critical value approach, if we are doing a two-tailed test, we do not know the population standard deviation, and we find that the test statistic is negative, then we fail to reject the null hypothesis if:

Group of answer choices

t−stat<tα2,v

t−stat>tα2,v

t−stat<tα,v

Answer 1