This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Find the z-score for the value 88, when the mean is 70 and the standard deviation is 1. A) z = ... (Read 107 times)

Haya94

  • Hero Member
  • *****
  • Posts: 558
on: Jun 24, 2018
Find the z-score for the value 88, when the mean is 70 and the standard deviation is 1.
 
  A) z = 17.00 B) z = -1.24 C) z = 1.24 D) z = 18.00

Question 2

A recent survey was conducted to compare the cost of solar energy to the cost of gas or
  electric energy.
 
  Results of the survey revealed that the distribution of the amount of the
  monthly utility bill of a 3-bedroom house using gas or electric energy had a mean of
  124.00 and a standard deviation of 15.00. Assuming the distribution is
  mound-shaped and symmetric, would you expect to see a 3-bedroom house using gas
  or electric energy with a monthly utility bill of 236.50 ? Explain.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Tabitha_2016

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jun 24, 2018
Answer to Question 1

D

Answer to Question 2

The z-score for the value 236.50 is:
z =
x - x
s
=
236.5 - 124
15
= 7.5
An observation that falls 7.5 standard deviations above the mean is very unlikely. We would not expect to see a
monthly utility bill of 236.50 for this home.


Haya94

  • Member
  • Posts: 558
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

miss_1456@hotmail.com

  • Member
  • Posts: 289
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Because of immature visual-motor coordination, young children find it hard to throw and catch small ... Because of immature visual-motor coordination, young children find it hard to throw and catch small ...
How to use L’Hospital’s Rule to find the limit of a function (Part 1) How to use L’Hospital’s Rule to find the limit of a function (Part 1)
How to find the equation of a line passing through two points How to find the equation of a line passing through two points
Find the derivative by using the quotient rule. Find the derivative by using the quotient rule.
Use the product rule to find derivative Use the product rule to find derivative
Sample lod score curves Sample lod score curves
Video: Conjunctivitis

For a complete list of videos, visit our video library