Hypothesis Testing (Binomial And Normal)

Question 1

What do you do when the probability you get from P(X< 5) probability distribution is < than the significance level?

Answer 1

• reject the Ho
• There is sufficient evidence to suggest that Ho is true.
• meaning that the hypothesis stated is true.

Question 2

What do you do when the P(X<5) is > greater than the significance level?

Answer 2

• Fail to reject the Ho.
• There is insufficient evidence to suggest that Ho is true.

Question 3

For a normal distribution, explain the steps required to carry out a hypothesis test.

Answer 3

• let mu be the population mean … of …
• Ho : p
• H1: p
• Assume Ho is true (Normal distribution)
  Remember : the variance is (o^2)/ n
  Remember: standard deviation is sqrrt variance.
• Do the probability normally
  Statement depending on whether the distribution is less that or greater than the sig level.

Question 4

Is the result significant or insignificant if the probability outcome is greater than > the significance level?

Answer 4

Result is not significant

Question 5

What if the probability outcome is less than < the sig level, is the result significant or insignificant?

Answer 5

Result is Significant.

Question 6

What must you always remember in a two tail test?

Answer 6

Half the significance level

Question 7

For a two tail test in a normal distribution sample means test what must you always do in regards with the mean?

Answer 7

Always work away from the mean.