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

Author Question: A random sample of 300 female registered voters was surveyed and 120 indicated they were planning to ... (Read 153 times)

viki

  • Hero Member
  • *****
  • Posts: 525
on: Aug 1, 2018
A random sample of 300 female registered voters was surveyed and 120 indicated they were planning to vote for the incumbent president. An independent random sample of 400 male registered voters indicated that 140 were planning to vote for the incumbent president.
 a. Compute the test statistic.
  b. At  = .05, test to see if there is a significant difference between the proportions of females and males who plan to vote for the incumbent president. (Use the p-value approach.)

Question 2

A random sample of 200 UTC seniors was surveyed and 60 indicated that they were planning on attending Graduate School. At UTK, a random sample of 400 seniors was surveyed and 100 indicated that they were planning to attend Graduate School.
 a. Determine a 95 confidence interval estimate for the difference between the proportions of seniors at the two universities that were planning to attend Graduate School.
 b. Is there conclusive evidence to suggest that the proportion of students from UTC who plan to go to Graduate School is significantly more than those from UTK? Explain.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

abro1885

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Aug 1, 2018
Answer to Question 1

a . z = 1.35
b. p-value = .177; do not reject H0

Answer to Question 2

a . .026 to .126 (UTC  UTK)
b. No, the range of the interval is from a negative value to a positive value.


viki

  • Member
  • Posts: 525
Reply 2 on: Aug 1, 2018
Excellent

Sarahjh

  • Member
  • Posts: 370
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

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 eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Sample preoperative checklist. Sample preoperative checklist.
Female genital and reproductive system. Female genital and reproductive system.
The experimental design and results of Lester and Gorzalka (1988). On the third test, the female ... The experimental design and results of Lester and Gorzalka (1988). On the third test, the female ...
Blolo Bla (Female Spirit Spouse) Blolo Bla (Female Spirit Spouse)
Sample Size Affects Sampling Error Sample Size Affects Sampling Error
Video: X chromosome inactivation in calico cats

For a complete list of videos, visit our video library