Answer to Question #325516 in Statistics and Probability for wiwili

Question

The average height of students in a freshman class of a certain school has been 153.24 cm with a population standard deviation of 4.03 cm. Is there a reason to believe that there has been a change in the average height if a random sample of 41 students in the present freshman class has an average height of 170.16 cm? Use a 0.05 level of significance.

What are the given? Write only the number. :

population mean: Blank 1 cm

population standard deviation: Blank 2 cm

sample size: Blank 3

sample mean: Blank 4 cm

level of significance: Blank 5

What are the critical values? Write the positive critical value first then the negative.

z: Blank 6 and Blank 7

What is the value of the calculated z? Round your answer to the nearest hundredths.

z: Blank 8