HomeworkLib
Question

Question: A random sample of 64 sunglasses are taken from a warehouse to test for defective items. The population of sunglass

the solution to this question is option C.
answerbut I thought it should be option A. can anyone tell me the correct ?

business   accounting   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Option C is correct i.e. 160 and 4

Calculation :-

Mean = 160 (given)

Standard error = Standard deviation/√Sample size

= 32/√64

= 32/8 = 4

√ = square root of

  

0 0
Add a comment
Know the answer?
Add Answer to:
the solution to this question is option C. answerbut I thought it should be option A....
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • QUESTION 16 5 points A simple random sample of 64 observations was taken from a large...

    QUESTION 16 5 points A simple random sample of 64 observations was taken from a large population. The sample mean and the standard deviation were determined to be 320 and 120 respectively. The standard error of the mean is .1.875 .15 0.5 0.40

  • A simple random sample of 64 observations was taken from a large population. The sample mean...

    A simple random sample of 64 observations was taken from a large population. The sample mean and the standard deviation were determined to be 70 and 12 respectively. The standard error of the mean is . . . (hint: enter the answer with one decimal place)

  • A simple random sample of size 64 is taken from a population of size 800. The...

    A simple random sample of size 64 is taken from a population of size 800. The sample mean is determined to be 2,550 with a standard deviation of 500. An estimate of the standard error of the mean (for the total) is: Correct answer = 47,958.32. Please show me the calculation.

  • Do i use the formula for finite or infinite? It gives me a population size so...

    Do i use the formula for finite or infinite? It gives me a population size so i was thinking finite, but everyone seems to going with the infinite formula to find the Standard deviation? 6.) A population of 1,000 students spends an average of $10.50 a day on dinner. The standard deviation of the expenditure is S3. A simple random sample of 64 students is taken. What are the expected value, standard deviation, and shape of the sampling distribution of...

  • 12. A random sample of 64 items was taken and the following values computed: Sample Mean...

    12. A random sample of 64 items was taken and the following values computed: Sample Mean 100 Sample Standard Deviation 20 Assume the data is normal. Find the 95th % confidence interval for the population mean

  • A simple random sample of 81 observations was taken from a large population. The sample mean...

    A simple random sample of 81 observations was taken from a large population. The sample mean and the sample standard deviation were determined to be 165 and 225 respectively. The standard error of the mean is

  • An automotive repair shop has determined that the average service time on an automobile is 2...

    An automotive repair shop has determined that the average service time on an automobile is 2 hours with a standard deviation of 32 minutes. A random sample of 64 services is selected. a. What is the probability that the sample of 64 will have a mean service time greater than 114 minutes? Assume the population consists of 400 services. Determine the standard error of the mean. C. What is the probability that the sample of 64 will have a mean...

  • Question 202.5 pts If we consider the simple random sampling process as an experiment, the sample...

    Question 202.5 pts If we consider the simple random sampling process as an experiment, the sample mean is _____. Group of answer choices always zero known in advance a random variable exactly equal to the population mean Flag this Question Question 212.5 pts The basis for using a normal probability distribution to approximate the sampling distribution of x ¯ and p ¯ is called _____. Group of answer choices The Law of Repeated Sampling The Central Limit Theorem Expected Value...

  • 2010 Week 6 Assignment: Confidence Interval for Mean - Population Stan- dard Deviation Known Home Sylabus...

    2010 Week 6 Assignment: Confidence Interval for Mean - Population Stan- dard Deviation Known Home Sylabus Announcements Question Resources Modules The heights of dogs in inches, in a city are normally distributed with a population standard devion of 4 inches and an unknown population mean, If a random sample of 18 does is taken and results in a sample mean of 32 inches, find the error bound (BM) of the confidence interval with a 90% confidence level 1.282 1645 1.960...

  • Statistics questions: 1. The standard deviation of is called: A. the standard deviation of X B....

    Statistics questions: 1. The standard deviation of is called: A. the standard deviation of X B. the standard error of C. the mean deviation of D. the standard deviation of the population 2. The entire group of persons, places or items that we want to collect observations from is known as: A. frame B. population C. sample space D. sample 3. Given a normally distributed population with mean µx and variance σ2, the sampling distribution of the sample mean is...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT