Answered

Westonci.ca offers fast, accurate answers to your questions. Join our community and get the insights you need now. Ask your questions and receive precise answers from experienced professionals across different disciplines. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

The average time for a student to complete this quiz is 24 minutes with a standard deviation of 2

minutes. What is the range of minutes needed for the middle 68% of quiz times? Complete the

sentence below.

The middle 68% of all people finish the quiz somewhere between

and

minutes.

Sagot :

fichoh

Answer:

22 and 26 minutes

Step-by-step explanation:

Given that :

Mean, m = 24

Standard deviation, s = 2

The Zscore representing the middle 68% falls within 1 standard deviation of the mean ;

68% : (-1 < z < 1)

From the Z standardization equation ;

Z = (x - m) / s

Zs = x - m

x = Zs + m

For Z = - 1 ; x = (-1*2 + 24) = - 2 + 24 = 22

For Z = 1 ; x = (1*2 + 24) = 2 + 24 = 26

The middle 68% of all people finish the quiz somewhere between 22 and 26 minutes

Thank you for your visit. We are dedicated to helping you find the information you need, whenever you need it. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Westonci.ca is your trusted source for answers. Visit us again to find more information on diverse topics.