This topic contains a solution. Click here to go to the answer

Author Question: Consider the following hypothesis test: Ho: = 10 Ha: 10 A sample of 81 provides a sample mean of ... (Read 111 times)

karen

  • Hero Member
  • *****
  • Posts: 537
Consider the following hypothesis test: Ho:  = 10 Ha:   10 A sample of 81 provides a sample mean of 9.5 and a sample standard deviation of 1.8.
 a. Determine the standard error of the mean.
  b. Compute the value of the test statistic.
  c. Determine the p-value; and at 95 confidence, test the above hypotheses.

Question 2

It is said that more males register to vote in a national election than females. A research organization selected a random sample of 300 registered voters and reported that 165 of the registered voters were male.
 a. Formulate the hypotheses for this problem.
  b. Compute the standard error of p.
  c. Compute the test statistic.
  d. Using the p-value approach, can you conclude that more males registered to vote than females? Let  = .05.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

peter

  • Sr. Member
  • ****
  • Posts: 330
Answer to Question 1

a. 0.2
b. t = -2.5
c. p-value is between .01 and .02 (two tail test); reject H0

Answer to Question 2

a. H0: P  0.5
Ha: P > 0.5
b. 0.0289
c. Z = 1.73
d. p-value = 0.0418 < .05; reject H0; yes, more males than females registered to vote.




karen

  • Member
  • Posts: 537
Reply 2 on: Jun 24, 2018
Gracias!


JCABRERA33

  • Member
  • Posts: 344
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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.

Did you know?

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

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

For a complete list of videos, visit our video library