Explain whether it is appropriate to use normal distribution to approximate the distribution of p ^ 1 − p ^ 2 .

Question

Want to see the full answer?

Answer 1

Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 7.4, Problem 22P

(a)

To determine

Explain whether it is appropriate to use normal distribution to approximate the distribution of p^1−p^2.

(b)

To determine

Find the 99% confidence interval for p1−p2.

(c)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the population proportion of unidentified artifacts at high elevations (7,000–7,500

feet) with the population proportion of unidentified artifacts at lower elevations (5,000–5,500 feet) at 99% level of confidence.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Business discuss

I just need to know why this is wrong below: What is the test statistic W? W=5 (incorrect) and What is the p-value of this test? (p-value < 0.001-- incorrect) Use the Wilcoxon signed rank test to test the hypothesis that the median number of pages in the statistics books in the library from which the sample was taken is 400. A sample of 12 statistics books have the following numbers of pages pages 127 217 486 132 397 297 396 327 292 256 358 272 What is the sum of the negative ranks (W-)? 75 What is the sum of the positive ranks (W+)? 5What type of test is this? two tailedWhat is the test statistic W? 5 These are the critical values for a 1-tailed Wilcoxon Signed Rank test for n=12 Alpha Level 0.001 0.005 0.01 0.025 0.05 0.1 0.2 Critical Value 75 70 68 64 60 56 50 What is the p-value for this test? p-value < 0.001

Answer 2

Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 7.4, Problem 22P

(a)

To determine

Explain whether it is appropriate to use normal distribution to approximate the distribution of p^1−p^2.

(b)

To determine

Find the 99% confidence interval for p1−p2.

(c)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the population proportion of unidentified artifacts at high elevations (7,000–7,500

feet) with the population proportion of unidentified artifacts at lower elevations (5,000–5,500 feet) at 99% level of confidence.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 7.4, Problem 22P

(a)

To determine

Explain whether it is appropriate to use normal distribution to approximate the distribution of p^1−p^2.

(b)

To determine

Find the 99% confidence interval for p1−p2.

(c)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the population proportion of unidentified artifacts at high elevations (7,000–7,500

feet) with the population proportion of unidentified artifacts at lower elevations (5,000–5,500 feet) at 99% level of confidence.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 7.4, Problem 22P

(a)

To determine

Explain whether it is appropriate to use normal distribution to approximate the distribution of p^1−p^2.

(b)

To determine

Find the 99% confidence interval for p1−p2.

(c)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the population proportion of unidentified artifacts at high elevations (7,000–7,500

feet) with the population proportion of unidentified artifacts at lower elevations (5,000–5,500 feet) at 99% level of confidence.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 7.4, Problem 22P

(a)

To determine

Explain whether it is appropriate to use normal distribution to approximate the distribution of p^1−p^2.

(b)

To determine

Find the 99% confidence interval for p1−p2.

(c)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the population proportion of unidentified artifacts at high elevations (7,000–7,500

feet) with the population proportion of unidentified artifacts at lower elevations (5,000–5,500 feet) at 99% level of confidence.

Answer 6

Chapter 7.4, Problem 22P

(a)

To determine

Explain whether it is appropriate to use normal distribution to approximate the distribution of p^1−p^2.

Answer 7

Chapter 7.4, Problem 22P

(a)

To determine

Explain whether it is appropriate to use normal distribution to approximate the distribution of p^1−p^2.

Answer 8

(b)

To determine

Find the 99% confidence interval for p1−p2.

Answer 9

(b)

To determine

Find the 99% confidence interval for p1−p2.

Answer 10

(c)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the population proportion of unidentified artifacts at high elevations (7,000–7,500

feet) with the population proportion of unidentified artifacts at lower elevations (5,000–5,500 feet) at 99% level of confidence.

Answer 11

(c)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the population proportion of unidentified artifacts at high elevations (7,000–7,500

feet) with the population proportion of unidentified artifacts at lower elevations (5,000–5,500 feet) at 99% level of confidence.

Answer 12

Expert Solution & Answer

Answer 13

Expert Solution & Answer

Answer 14

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 15

Explain whether it is appropriate to use normal distribution to approximate the distribution of p ^ 1 − p ^ 2 .

Solution Summary: The author explains whether it is appropriate to use normal distribution to approximate the distribution of stackrelp_1.

Videos

Explain whether it is appropriate to use normal distribution to approximate the distribution of p^1−p^2.

Find the 99% confidence interval for p1−p2.

Want to see the full answer?

Chapter 7 Solutions