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

Author Question: Use the two-proportions z-interval procedure to obtain the required confidence interval for the ... (Read 48 times)

natalie2426

  • Hero Member
  • *****
  • Posts: 524
Use the two-proportions z-interval procedure to obtain the required confidence interval for the difference between two population proportions.  Assume that independent simple random samples have been selected from the two populations.

In a random sample of 53 Democrats from one city, 11 approved of the mayor's performance. In a random sample of 57 Republicans from the city, 21 approved of the mayor's performance.  Find a 90% confidence interval for the difference between the proportions of Democrats and Republicans who approve of the mayor's performance.
◦ 0.067 to 0.348
◦ 0.040 to 0.374
◦ -0.300 to -0.021
◦ 0.041 to 0.374


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by natalie2426 on Apr 7, 2020

ryrychapman11

  • Sr. Member
  • ****
  • Posts: 334
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 32% of students answer this correctly




natalie2426

  • Member
  • Posts: 524
Reply 2 on: Apr 7, 2020
Wow, this really help


cam1229

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

For a complete list of videos, visit our video library