Author Question: A two-tailed hypothesis test is performed at the = 0.05 level. A critical value of z(0.025) = 1.96 ... (Read 117 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586
A two-tailed hypothesis test is performed at the  = 0.05 level. A critical value of z(0.025) = 1.96 is used to assess the significance of a test statistic, z = -1.81. Which is the correct inference?
  1.Fail to reject the null hypothesis
  2.Reject the null hypothesis

Question 2

What is the critical value for a one-tailed z-test for an alternative hypothesis that is stated as a less than at the  = 0.02 level?
  1.-2.33
  2.-2.05
  3.2.33
  4.2.05



jharrington11

  • Sr. Member
  • ****
  • Posts: 365
Answer to Question 1

1

Answer to Question 2

2



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

For a complete list of videos, visit our video library