Problem 3a Use StatCrunch to compute the mean and standard deviation of the 20 values of Variable 6. Copy and paste the one Summary Statistics table displaying these statistics to your Word solutions file. Problem 3a. Assume that Variable 6, is normally distributed with a population mean and population standard deviation that happens to equal to the mean and standard deviation that you just computed.

Problem 3b. Probability that the value of Variable 6 observed will exceed the value which is 1.5 standard deviations above the population mean? Once you have the appropriate StatCrunch Normal Calculator window displayed showing your solution to Problem 3b, copy and paste this window to your Word solution file under the subheading Problem 3b.

Problem 3c. Probability that the value of Variable 6 observed will be within 1.5 standard deviations of the population mean on either side of the mean? Once you have the appropriate StatCrunch Normal Calculator window displayed showing your solution to Problem 3c, copy and paste this window to your Word solution file under the subheading Problem 3c.

Problem 3d. Use StatCrunch to find the value of Variable 6 that represents the first quartile (Q1). Once you have the appropriate StatCrunch Normal Calculator window displayed showing your solution to Problem 3d, copy and paste this window to your Word solution file under the subheading Problem 3d

VARIABLE 6 :

Time :

4

6

7

8

6

7

4

7

6

5

10

12

7

8

8

9

13

10

9

8