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

Author Question: A confidence interval was used to estimate the proportion of statistics students who are female. A ... (Read 79 times)

Pineapplelove6

  • Hero Member
  • *****
  • Posts: 560
on: Jun 24, 2018
A confidence interval was used to estimate the proportion of statistics students who are female. A random sample of 72 statistics students generated the following 90 confidence interval: (0.438, 0.642). Using the information above, what total size sample would be necessary if we wanted to estimate the true proportion to within 0.08 using 95 confidence?
 
  A) 105 B) 597 C) 420 D) 150

Question 2

A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial aid. If the dean wanted to estimate the proportion of all students receiving financial aid to within 3 with 99 reliability, how many students would need to be sampled?
 
  A) n = 1,503 B) n = 1,844 C) n = 1,784 D) n = 1,435


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

asdfasdf

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jun 24, 2018
Answer to Question 1

D

Answer to Question 2

C


Pineapplelove6

  • Member
  • Posts: 560
Reply 2 on: Jun 24, 2018
:D TYSM

okolip

  • Member
  • Posts: 362
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

When cats mate, the tomcat (male) bites the scruff of the female's neck as she assumes a positi When cats mate, the tomcat (male) bites the scruff of the female's neck as she assumes a positi
Both students with intellectual disability (ID) and students who are intellectually gifted need ... Both students with intellectual disability (ID) and students who are intellectually gifted need ...
Procedures and Diagnostic Tests Related to the Female Reproductive System Procedures and Diagnostic Tests Related to the Female Reproductive System
On average, students in Roman Catholic schools score higher on national tests than students in ... On average, students in Roman Catholic schools score higher on national tests than students in ...
How to impress a choosy female: Male Hangingfly Bearing Food How to impress a choosy female: Male Hangingfly Bearing Food
Female copepod with eggs Female copepod with eggs
Video: EpiPen Animation (Part 2)

For a complete list of videos, visit our video library