Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Need help please and thank you juanita scored 6.4 points above her average score where 5. Find the percentage of all values in a normal

Need help please and thank you

image text in transcribed
juanita scored 6.4 points above her average score where 5. Find the percentage of all values in a normal distribution for each z-score. a.zs 215 b.z s 1.25 CZ 2 .62 a.zs-2.26 b. z s.48 C.12 -1.39 6. Given the mean & and standard deviation o, find the z-score for each data point x B. H = 01 0 =2:x =3 b. * = 1; a =.15 x = .7 CM = 100; 0 = 15;x = 70 # = 2.7; g = 0.5;x = 3.0 7. Mrs. Smith surveyed the students in her class to find the number of minutes they spent doing homework each night. She found that the data was normally distributed with a = 30 and o = 10 min. Draw the normally distributed curve. a. What range of time spent doing homework contains the 68% closest to the mean? b. How much time spent on homework would you expect from the 2.5%% of the students with the least time spent on homework? c. Jeffery studied 25 min last night. What percent of the students studied fewer minutes than Jeffery? Round to the nearest hundredth

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Advances In Mathematical Economics Volume 19

Authors: Shigeo Kusuoka, Toru Maruyama

1st Edition

4431554890, 9784431554899

More Books

Students also viewed these Mathematics questions

Question

1. Too understand personal motivation.

Answered: 1 week ago