« previous next »

Author Question: What is the test statistic for this test? A) Z = 2.04 B) t = 1.79 C) t = 2.04 D) Z = ... (Read 52 times)

Redwolflake15

  • Hero Member
  • *****
  • Posts: 569
on: Jun 24, 2018
What is the test statistic for this test?
 
  A) Z = 2.04
  B) t = 1.79
  C) t = 2.04
  D) Z = 1.79

Question 2

Find the 95th percentile.
 
  What will be an ideal response?


Shshxj

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

Find x0 such that P(X  x0 ) = 0.95 = P(Z  z0 ).
Since the area to the left of z0 is greater than .5, z0 must be larger than zero such that P(0 < Z < z0 ) = 0.45, so z0 = 1.645. Thus, x0 = 75 + (1.645 )(4 ) = 81.58


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

A Test for the Blind Spot A Test for the Blind Spot
Booker T. Washington in his office at Tuskegee Institute, 1900. Washington chose a policy of accommo Booker T. Washington in his office at Tuskegee Institute, 1900. Washington chose a policy of accommo
Performing a PKU Test Performing a PKU Test
Using an ice bath to test the fuel temperature sensor. Using an ice bath to test the fuel temperature sensor.
Herpes simplex 2 rapid test. Herpes simplex 2 rapid test.
Consider the following hypothesis problem. n = 30 H0: 2 = 500 s2 = 625 Ha: 2 500 The test ... Consider the following hypothesis problem. n = 30 H0: 2 = 500 s2 = 625 Ha: 2 500 The test ...
Video: Skin Cancer

For a complete list of videos, visit our video library