LET US TEST OUR IDEA ABOUT z TEST!

What hypotheses would you use?

• $H_0:\ \mu=44\ and\ H_1:\mu\ne44$

• $H_0:\ \mu=44\ and\ \ H_1:\ \mu>44$

• $H_0:\mu=44\ \ and\ \ H_1:\mu<44$

• $H_0:\ \mu=44\ \ \ and\ \ H_1:\ \mu\ge44$

Is the sample considered small or large?

• This sample can be considered small for our purposes.

• This sample can be considered large for our purposes.

What assumption must be met before the hypothesis test can be conducted?

Which probability distribution would you use?

• binomial distribution

• standard normal distribution

• Poisson distribution

• chi square distribution

Would you select a one- or two-tailed test?

• one-tailed

• two-tailed

If P-value ≤ α, reject the null hypothesis.

• True

• False

If P-value > α, do not reject the null hypothesis.

• True

• False

If P-value > 0.05 but P-value ≤ 0.10, consider the consequences of type I error before rejecting the null hypothesis.

• True

• False

If P-value > 0.10, do not reject the null hypothesis. The difference is not significant.

• True

• False

If P-value ≤ 0.01, reject the null hypothesis.

• True

• False