The following data was calculated during a study on unemployment rates.Use the following information to find the test statistic and rejection region(s)at a1%

level of significance:

• An economist would like to test the claim that the average unemployment rate in smaller towns outside the city is differentthan3.9
• percent.
• Sample size=31
• smaller towns
• Sample mean=4.2
• percent
• From past data, it is known that the population standard deviation is0.8
• percent.

Use the curve below to find the test statistic and critical value(s). Select the appropriate test by dragging the blue point to a right-, left- or two-tailed diagram.Use the purple slider to set the significance level. Use the black sliders to set the information from the study described above including the sample size, sample mean, population mean and standard deviation.

If entering two critical values as your final answer, use

Move the blue dot to choose the appropriate test

0.01

0.025

0.05

0.1

Significance level = 0.1

n=

x =

=

=

test statistic =

critical value(s) =