Question

The table below shows sample and population statistics for height. Sample Size 49 Mean 65 Standard...

The table below shows sample and population statistics for height.

Sample

Size 49

Mean 65

Standard Dev. 2.0

Population

Size 1000

mean 64

Standard dev. 1.0

Are the sample height and population height significantly different? (p=0.05)

How different are they?

Is the difference significant at p=0.01

Homework Answers

Answer #1

Since p-value is less than 0.05 so the sample height and population height are significantly different at 0.05 significance level.

Since p-value is less than 0.01 so the sample height and population height are significantly different at 0.01 significance level.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A random sample of 49 measurements from one population had a sample mean of 16, with...
A random sample of 49 measurements from one population had a sample mean of 16, with sample standard deviation 3. An independent random sample of 64 measurements from a second population had a sample mean of 18, with sample standard deviation 4. Test the claim that the population means are different. Use level of significance 0.01. (a) What distribution does the sample test statistic follow? Explain. The Student's t. We assume that both population distributions are approximately normal with known...
A random sample of 49 measurements from one population had a sample mean of 16, with...
A random sample of 49 measurements from one population had a sample mean of 16, with sample standard deviation 5. An independent random sample of 64 measurements from a second population had a sample mean of 19, with sample standard deviation 6. Test the claim that the population means are different. Use level of significance 0.01. (a) What distribution does the sample test statistic follow? Explain.(c) Compute x1 − x2. x1 − x2 = Compute the corresponding sample distribution value....
A random sample of n1 = 49 measurements from a population with population standard deviation σ1...
A random sample of n1 = 49 measurements from a population with population standard deviation σ1 = 5 had a sample mean of x1 = 11. An independent random sample of n2 = 64 measurements from a second population with population standard deviation σ2 = 6 had a sample mean of x2 = 14. Test the claim that the population means are different. Use level of significance 0.01. (a) Check Requirements: What distribution does the sample test statistic follow? Explain....
A random sample of 49 measurements from a population with population standard deviation σ1 = 5...
A random sample of 49 measurements from a population with population standard deviation σ1 = 5 had a sample mean of x1 = 9. An independent random sample of 64 measurements from a second population with population standard deviation σ2 = 6 had a sample mean of x2 = 12. Test the claim that the population means are different. Use level of significance 0.01. (a) Compute the corresponding sample distribution value. (Test the difference μ1 − μ2. Round your answer...
DATA: The Population Mean for Women’s Height is 65” and the Population Standard Deviation is 3.5”....
DATA: The Population Mean for Women’s Height is 65” and the Population Standard Deviation is 3.5”. A researcher tests whether a new Stretching Machine will significantly increase height in women. The researcher selects a sample of 12 women and has each use the stretching machine for 10 minutes per day for 12 months. At the end of the 12-month period the research measures each woman’s height and calculates the sample mean. The sample mean is 67”. The researcher wants to...
A random sample of n1 = 49 measurements from a population with population standard deviation σ1...
A random sample of n1 = 49 measurements from a population with population standard deviation σ1 = 5 had a sample mean of x1 = 8. An independent random sample of n2 = 64 measurements from a second population with population standard deviation σ2 = 6 had a sample mean of x2 = 11. Test the claim that the population means are different. Use level of significance 0.01.(a) Check Requirements: What distribution does the sample test statistic follow? Explain. The...
A random sample of n1 = 49 measurements from a population with population standard deviation σ1...
A random sample of n1 = 49 measurements from a population with population standard deviation σ1 = 3 had a sample mean of x1 = 13. An independent random sample of n2 = 64 measurements from a second population with population standard deviation σ2 = 4 had a sample mean of x2 = 15. Test the claim that the population means are different. Use level of significance 0.01. (a) Check Requirements: What distribution does the sample test statistic follow? Explain....
Given the sample statistics below, what would you conclude to a test whether the population mean...
Given the sample statistics below, what would you conclude to a test whether the population mean GPA of Stats II students is different from 3.12? Use a 0.05 significance level? sample size = 30 sample mean = 3.231 sample standard deviation = 0.3401 Select one: The average GPA is equal to 3.12 The average GPA is not equal to 3.12 More information is required to conclude
We found that the sample mean and sample standard deviation for this sample data are 65.16...
We found that the sample mean and sample standard deviation for this sample data are 65.16 inches and 2.54 inches, respectively. Do you find sufficient evidence in the sample data to support the claim that the mean height of female engineering students at UH is greater than 65 inches at α = 0.05? Answer this question using both fixed-? approach and P-value approach. (Hint: for P-value approach, you need to find P-value range using the t-table as demonstrated in the...
1. A sample size of 49 drawn from a population with a mean of 36 and...
1. A sample size of 49 drawn from a population with a mean of 36 and a standard deviation of 15 for the size of an English class. What is the probability the class will have greater than 40 a. .9693 b. .4693 c. .0808 d. .0307 2. A sample size of 49 drawn from a population with a mean of 36 and a standard deviation of 15 for the size of an English class. What is the probability the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT