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

Author Question: A negative value of z indicates that a. the number of standard deviations of an observation is to ... (Read 74 times)

fagboi

  • Hero Member
  • *****
  • Posts: 535
on: Jun 24, 2018
A negative value of z indicates that
 a. the number of standard deviations of an observation is to the right of the mean.
   b. the number of standard deviations of an observation is to the left of the mean.
   c. a mistake has been made in computations, since z cannot be negative.
   d. the data has a negative mean.

Question 2

A sample of 61 items provided a sample mean of 932, a sample mode of 900, and a sample standard deviation of 11 . Test the following hypotheses using  = .05 . What is your conclusion? H0: 2  80 Ha: 2 > 80


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jayson

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Jun 24, 2018
Answer to Question 1

b

Answer to Question 2

2 = 90.75 > 79.082 (p-value is between .005 and .01); reject H0
The population variance is more than 80.


fagboi

  • Member
  • Posts: 535
Reply 2 on: Jun 24, 2018
Wow, this really help

chjcharjto14

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

negative feedback mechanism negative feedback mechanism
Positive and Negative Symptoms of Schizophrenia Positive and Negative Symptoms of Schizophrenia
Father’s Age and the Number of de novo Mutations Father’s Age and the Number of de novo Mutations
Standard Alcoholic Drink Sizes Standard Alcoholic Drink Sizes
Under what conditions can part-time employment in high school be a negative influence on school ... Under what conditions can part-time employment in high school be a negative influence on school ...
Summary of Standard Precautions Summary of Standard Precautions
Video: hGH (protein synthesis, growth and development)

For a complete list of videos, visit our video library