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

Author Question: If the random variable X is normally distributed with a mean of 75 and a standard deviation of 8, ... (Read 35 times)

rosent76

  • Hero Member
  • *****
  • Posts: 516
on: Jul 24, 2018
If the random variable X is normally distributed with a mean of 75 and a standard deviation of 8, then P(X >= 75) is:
 a. 0.125
  b. 0.500
  c. 0.625
  d. 0.975
  e. 0.250

Question 2

Suppose in testing a hypothesis about a proportion, the z test statistic is computed to be 1.92 . The null hypothesis should be rejected if the chosen level of significance is 0.01 and a two-tailed test is used.
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dmurph1496

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

F


rosent76

  • Hero Member
  • *****
  • Posts: 516
Reply #2 on: Jul 24, 2018
Thanks


dmurph1496

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 24, 2018
Welcome :)


« previous next »
 

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Betelgeuse is a semiregular variable star Betelgeuse is a semiregular variable star
Standard Schnauzer Standard Schnauzer
Standard Alcoholic Drink Sizes Standard Alcoholic Drink Sizes
How to solve a linear system when the variable is in the denominator position (Question 1 of 2) How to solve a linear system when the variable is in the denominator position (Question 1 of 2)
The Plunger and Barrel of a Standard Syringe The Plunger and Barrel of a Standard Syringe
Variable expressivity as shown in flies homozygous for the eyeless mutation in Drosophila Variable expressivity as shown in flies homozygous for the eyeless mutation in Drosophila
Video: Carbohydrate digestion (brush border enzymes, end products) & Carb absorption (fructose, galactose)

For a complete list of videos, visit our video library