« previous next »

Author Question: The z score for the standard normal distribution a. is always equal to zero. b. can never be ... (Read 108 times)

amal

  • Hero Member
  • *****
  • Posts: 572
on: Jun 24, 2018
The z score for the standard normal distribution
 a. is always equal to zero.
   b. can never be negative.
   c. can be either negative or positive.
   d. is always equal to the mean.

Question 2

A sample of 22 bottles of soft drink showed a variance of .64 in their contents. At the 5 level, determine whether or not the standard deviation of the population is significantly different from .7 ounces. Use the critical value approach.


leannegxo

  • Sr. Member
  • ****
  • Posts: 374
Reply #1 on: Jun 24, 2018
Answer to Question 1

c

Answer to Question 2

H0: 2 = .49
Ha: 2  .49
chi-square = 27.43 which is between 10.283 to 35.479; do not reject H0


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

amal

  • Hero Member
  • *****
  • Posts: 572
Reply #2 on: Jun 24, 2018
Thank you


leannegxo

  • Sr. Member
  • ****
  • Posts: 374
Reply #3 on: Jun 24, 2018
No problemo


« previous next »
 

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event
The distribution of lorsies and galagos. The distribution of lorsies and galagos.
Hematocrits, left to right: normal, anemia, polycythemia. Hematocrits, left to right: normal, anemia, polycythemia.
On average, students in Roman Catholic schools score higher on national tests than students in ... On average, students in Roman Catholic schools score higher on national tests than students in ...
The time at which the mailman delivers the mail to Ace Bike Shop follows a normal distribution ... The time at which the mailman delivers the mail to Ace Bike Shop follows a normal distribution ...
MRI scans of normal elderly person compared to one with Alzheimer's MRI scans of normal elderly person compared to one with Alzheimer's
Video: Introduction to Eating Disorders

For a complete list of videos, visit our video library