(Solution) An automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by the local dealer. The... > Snapessays.com


(Solution) An automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by the local dealer. The...


I need help with a few homework questions, I have put them on a word document to make it easier to solve. there are 10 questions and they each have a and b. 1.)

 

An automobile manufacturer would like to know what proporTon of its customers are not

 

saTsFed with the service provided by the local dealer. ±he customer relaTons department will

 

survey a random sample of customers and compute a 95% conFdence interval for the

 

proporTon who are not saTsFed.

 

(a) Past studies suggest that this proporTon will be about 0.17. ²ind the sample size needed if

 

the margin of the error of the conFdence interval is to be about 0.015.

 

(You will need a critcal value accuraTe To aT leasT 4 decimal places.)

 

Sample

 

size:

 

(b) Using the sample size above, when the sample is actually contacted, 25% of the sample say

 

they are not saTsFed. What is the margin of the error of the conFdence interval?

 

MoE:

 

2.)

 

A Gallup poll asked a sample of Canadian adults if they thought the law should allow doctors

 

to end the life of a paTent who is in great pain and near death if the paTent makes a request in

 

wriTng. ±he poll included 250 people in Quebec, 185 of whom agreed that doctor-assisted

 

suicide should be allowed.

 

(a)What is the margin of error of the large-sample 99.8% conFdence interval for the proporTon

 

of all Quebec adults who would allow doctor-assisted suicide?

 

MoE:

 

(b) How large a sample is needed to get a ³3 percentage point margin of error (this is very

 

commonly used)? Use the previous sample as a pilot study to get p*.

 

(You may need four decimal places in your criTcal value to solve this problem.)

 

Sample

 

size:

 

3.)

 

Over half of all American teens (ages 12 to 17 years) have an online proFle, mainly on

 

²acebook. A random sample of 503 teens with proFles found that 372 included photos of

 

themselves.

 

(a) Give the 99.8% large-sample conFdence interval for the proporTon

 

p

 

of all teens with

 

proFles who include photos of themselves.

 

Large-sample Interval: to

 


Solution details:
STATUS
Answered
QUALITY
Approved
ANSWER RATING

This question was answered on: Sep 21, 2023

Solution~00021147637554.zip (25.37 KB)


This attachment is locked

Our expert Writers have done this assignment before, you can reorder for a fresh, original and plagiarism-free copy and it will be redone much faster (Deadline assured. Flexible pricing. TurnItIn Report provided)

Pay using PayPal (No PayPal account Required) or your credit card . All your purchases are securely protected by .
SiteLock

About this Question

STATUS

Answered

QUALITY

Approved

DATE ANSWERED

Sep 21, 2023

EXPERT

Tutor

ANSWER RATING

GET INSTANT HELP

We have top-notch tutors who can do your essay/homework for you at a reasonable cost and then you can simply use that essay as a template to build your own arguments.

You can also use these solutions:

  • ■ As a reference for in-depth understanding of the subject.
  • ■ As a source of ideas / reasoning for your own research (if properly referenced)
  • ■ For editing and paraphrasing.

This we believe is a better way of understanding a problem and makes use of the efficiency of time of the student.

Get Free Price Quote