ZuoTi.Pro
Question

QUESTION 18 A population has σ = 16. What is the population variance?​ A. 16 B....

QUESTION 18

A population has σ = 16. What is the population variance?​

A. 16

B. 256

C. 14

D. 4

PLEASE SHOW WORK

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Population variance = = (16)2 = 256

Option B is correct.

0 0
Add a comment
Know the answer?
Add Answer to:
QUESTION 18 A population has σ = 16. What is the population variance?​ A. 16 B....
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

  • A random sample of n=25 is obtained from a population with variance σ^2, and the sample...

    A random sample of n=25 is obtained from a population with variance σ^2, and the sample mean is computed. Test the null hypothesis H0 : μ = 110 versus the alternative hypothesis H1: μ>110 with α=0.01. Compute the critical value (Xc overbar) and state your decision rule for the options below. a. The population variance is σ^2=256. b. The population variance is σ^2=400. c. The population variance is σ^2=900. d. The population variance is σ^2=500.

  • Find the sample variance (s^2 ), sample standard deviation (s), population variance (σ^2 ) and population...

    Find the sample variance (s^2 ), sample standard deviation (s), population variance (σ^2 ) and population standard deviation (σ) for the data values {3, 5, 8}. Show your work!

  • A population of N = 10 scores has a mean of μ = 24 with SS...

    A population of N = 10 scores has a mean of μ = 24 with SS = 160, a variance of σ2 = 16, and a standard deviation of σ = 4. For this population, what is Σ(X − μ)? A. 0. B. 4. C. 16. D. 160

  • 3. For a normal population with known variance σ, answer the following questions: (a) What is...

    3. For a normal population with known variance σ, answer the following questions: (a) What is the confidence level for the interval: R-1.85o/ym μ + 1.85o/vn? (b) What is the confidence level for the interval: μ R + 1.4o/

  • Suppose population 1 has mean with variance σ2 and population 2 has mean μ2 with the...

    Suppose population 1 has mean with variance σ2 and population 2 has mean μ2 with the same variance σ. Let sỈ and s denote the sample variances from two samples with size ni and n2 from the corresponding populations, respectively. Show that the pooled estimator pooled is an unbiased estimator of σ2

  • 24. If the population mean is 0 and the population variance o, 1 (10 points) What...

    24. If the population mean is 0 and the population variance o, 1 (10 points) What is the P (z> 3) a. What is the P (z<2) b. What is the P (-1.5<z <3)? c. What is the P (-2.33cz < 1.25)? d. e. What is the P (-2.33<z and >1.25)? 25. If the population mean is 115 and the population variance σ, 100 (10 points) What is the P (z > 120) a. b. What is the P (2<150)?...

  • x, and S1 are the sample mean and sample variance from a population with mean μ|...

    x, and S1 are the sample mean and sample variance from a population with mean μ| and variance ơf. Similarly, X2 and S1 are the sample mean and sample variance from a second population with mean μ and variance σ2. Assume that these two populations are independent, and the sample sizes from each population are n,and n2, respectively. (a) Show that X1-X2 is an unbiased estimator of μ1-μ2. (b) Find the standard error of X, -X. How could you estimate...

  • A sample of 16 items from population 1 has a sample variance s = 5.5 and...

    A sample of 16 items from population 1 has a sample variance s = 5.5 and a sample of 17 items from population 2 has a sample variance s = 2.3. Test the following hypotheses at the .05 level of significance. H: <o H:01 > a. What is your conclusion using the p-value approach? Calculate the value of the test statistic (to 2 decimals). The p-value is - Select your answer . Use Table 11.1. What is your conclusion? 1...

  • A sample set is as the following with a missing value x. It is known that-18...

    A sample set is as the following with a missing value x. It is known that-18 x1 101212 12 141414 1414 16 16 18 1820 2020 22 3035 What is the missing data value of the data set? What is the median? What is the variance? 9.What is the variance, if this is a population? 10. Does it skew? (Right, Left, or Not) A population is listed as the followin 10 15 11. 12. 13. 14. 15. 16. Find μ...

  • 1. Consider the following POPULATION of quiz scores {18, 23, 7, 20, 15, 12, 6, 23,...

    1. Consider the following POPULATION of quiz scores {18, 23, 7, 20, 15, 12, 6, 23, 17, 16 } Compute the following: the mean ,μ, the variance, σ2, the standarddeviation, σ. State the mode, if one exists __________ ApplytheEmpiricalRuleatthe95%level. What percentage of these Quiz Scores actually lie within the interval found in part c? _________________________ II. Again consider the given Quiz Scores: {18, 23, 7, 20, 15, 12, 6, 23, 17, 16 } Determine Q1, the median, and Q3: Draw...

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
ADVERTISEMENT