The sampling distribution of p ^ .

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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 8, Problem 5CT

a.

To determine

To describe: The sampling distribution of p^ .

b.

To determine

To find: The probability that at least 50 are smokers.

c.

To determine

If a random sample of 300 adults results in 18% or less being smokers is unusual or not.

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Answer 2

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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 8, Problem 5CT

a.

To determine

To describe: The sampling distribution of p^ .

b.

To determine

To find: The probability that at least 50 are smokers.

c.

To determine

If a random sample of 300 adults results in 18% or less being smokers is unusual or not.

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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 8, Problem 5CT

a.

To determine

To describe: The sampling distribution of p^ .

b.

To determine

To find: The probability that at least 50 are smokers.

c.

To determine

If a random sample of 300 adults results in 18% or less being smokers is unusual or not.

Expert Solution & Answer

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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 8, Problem 5CT

a.

To determine

To describe: The sampling distribution of p^ .

b.

To determine

To find: The probability that at least 50 are smokers.

c.

To determine

If a random sample of 300 adults results in 18% or less being smokers is unusual or not.

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Answer 5

Chapter 8, Problem 5CT

a.

To determine

To describe: The sampling distribution of p^ .

b.

To determine

To find: The probability that at least 50 are smokers.

c.

To determine

If a random sample of 300 adults results in 18% or less being smokers is unusual or not.

Answer 6

Chapter 8, Problem 5CT

a.

To determine

To describe: The sampling distribution of p^ .

Answer 7

Chapter 8, Problem 5CT

a.

To determine

To describe: The sampling distribution of p^ .

Answer 8

b.

To determine

To find: The probability that at least 50 are smokers.

Answer 9

b.

To determine

To find: The probability that at least 50 are smokers.

Answer 10

c.

To determine

If a random sample of 300 adults results in 18% or less being smokers is unusual or not.

Answer 11

c.

To determine

If a random sample of 300 adults results in 18% or less being smokers is unusual or not.

Answer 12

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Answer 15

Ch. 8.1 - The _____ _____ of the sample mean, x, is the...Ch. 8.1 - Suppose a simple random sample of size n is drawn...Ch. 8.1 - The standard deviation of the sampling...Ch. 8.1 - True or False: The distribution of the sample...Ch. 8.1 - True or False: The distribution of the sample...Ch. 8.1 - True or False: To cut the standard error of the...Ch. 8.1 - A simple random sample of size n = 10 is obtained...Ch. 8.1 - A simple random sample of size n = 40 is obtained...Ch. 8.1 - In Problems 912, determine x and x from the given...Ch. 8.1 - In Problems 912, determine x and x from the given...

The sampling distribution of p ^ .

Solution Summary: The author explains the sampling distribution of stackrelp with the mean and standard deviation.

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To describe: The sampling distribution of p^ .

To find: The probability that at least 50 are smokers.

If a random sample of 300 adults results in 18% or less being smokers is unusual or not.

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