*Thank you very much. This is great now. Appreciate all your help and revisions. Thank you once again! You did a wonderful job.*

Question 2.2. Which of the following distributions is most likely to approach a normal distribution? (Points : 1)

distribution of all possible sample means of sample size 90

distribution of all possible sample means of sample size 60

distribution of all possible sample means of sample size 120

distribution of all possible sample means of sample size 30

Question 1 Find the confidence interval for a population mean of 615 acres at a 90% level of confidence with a sample size of 52 and standard deviation of 27 acres. (Points : 1)

189 to 1190 acres

608.84 to 621.16 acres

452 to 4252 acres

172 to 2008 acres

Question 3 A sample was taken of computation errors on an exam: 4, 7, 3, 8, 4, 4, 6, 1, 5, 2, 4, 8, 5, 4, 5. What value should be used for the population standard deviation? (Points : 1)

0.51

1.99

none, since the population standard deviation should never be estimated

1.92

Question 5.5. Confidence interval estimates of a population parameter ________. (Points : 1)

provide a range of values within which the true value of the parameter is believed to be

specify a value that accurately predicts the population parameter

eliminates the effect of sampling error

are used solely to estimate the value of population variance

Question 6.6. All of the following are reasons why random sampling is important for statistical applications except ________. (Points : 1)

the outcomes are more readily understood and therefore really usable

solving using mathematics alone may be very difficult if not impossible

the outcome variables are complicated functions of several input random variables

sampling experiments can be used to better understand important statistics theories

Question 7.7. For a sample size of 12, the degrees of freedom are ________. (Points : 1)

13

144

11

3.46

Question 8.8. A quality assurance technician has checked fifteen 2-liter bottles of a soft drink finding a 99% confidence interval of 1950 ml to 2025 ml for the mean fill volume. Which of the following is true? (Points : 1)

The sample indicates that the population mean lies between 1950 and 2025 ml.

There is a 99% likelihood that the bottles are being under-filled so the bottling process should be stopped.

The technician should recalculate at a 95% confidence interval.

The sample indicates that the sample mean lies closer to 2 liters than not.

Question 9.9. Regarding the standard error of the mean, ________. (Points : 1)

as the sample size increases, the standard error increases

as the sample size decreases, the standard error decreases

as the sample size increases, the standard error decreases

it is defined as one-half of the population standard deviation

Question 10.10. A point estimate is used ________. (Points : 1)

because it’s easier to use all the values in the data set than a single value

to estimate the value of a population estimate

when the population parameter is known

only when the population proportion is not known

Question 11.11. Find the standard error of the mean when the population standard deviation is 2.4 and a sample of size 36 is taken. (Points : 1)

4.03

0.6

14.4

0.4

Question 13.13. The standard error of the mean is ________. (Points : 1)

the variance of the sampling distribution of the mean

the standard deviation of the sampling distribution of the mean

the range of the sampling distribution of the mean

the mean of the sampling distribution of the standard deviations

Question 15.15. Find the confidence interval for a population mean of 1.6 pounds at a 95% level of confidence with a sample size of 112 and standard deviation of 0.2 pounds. (Points : 1)

1.89 to 1.90 pounds

4.52 to 42.52 pounds

1.56 to 1.64 pounds

1.72 to 2.08 pounds

Question 16.16. Which of the following is a subjective sampling method? (Points : 1)

cluster sampling

judgment sampling

systematic sampling

stratified sampling

Question 17.17. The margin of error used in a confidence interval is found by ________. (Points : 1)

multiplying the standard error by zα/2

multiplying the population standard deviation and the sample size

dividing the population standard deviation by the sample

multiplying the level of confidence and the standard error

18. A sample mean of 4.56 ounces was just measured from a population of which the population mean is not known. What value should be used for the population mean? (Points : 1)

2.125 ounces

none, since the population mean cannot be estimated

4.56 ounces

the average of all the sample means

The price is based on these factors:

Academic level

Number of pages

Urgency

Basic features

- Free title page and bibliography
- Unlimited revisions
- Plagiarism-free guarantee
- Money-back guarantee
- 24/7 support

On-demand options

- Writer’s samples
- Part-by-part delivery
- Overnight delivery
- Copies of used sources
- Expert Proofreading

Paper format

- 275 words per page
- 12 pt Arial/Times New Roman
- Double line spacing
- Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Delivering a high-quality product at a reasonable price is not enough anymore.

That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more