To check: Whether the claim that the proportion of population 1 is same as the proportion of population 2 or not.

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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 8.4.25RE

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To check: Whether the claim that the proportion of population 1 is same as the proportion of population 2 or not.

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30. An individual who has automobile insurance from a certain company is randomly selected. Let Y be the num- ber of moving violations for which the individual was cited during the last 3 years. The pmf of Y isy | 1 2 4 8 16p(y) | .05 .10 .35 .40 .10 a.Compute E(Y).b. Suppose an individual with Y violations incurs a surcharge of $100Y^2. Calculate the expected amount of the surcharge.

24. An insurance company offers its policyholders a num- ber of different premium payment options. For a ran- domly selected policyholder, let X = the number of months between successive payments. The cdf of X is as follows: F(x)=0.00 : x < 10.30 : 1≤x<30.40 : 3≤ x < 40.45 : 4≤ x <60.60 : 6≤ x < 121.00 : 12≤ x a. What is the pmf of X?b. Using just the cdf, compute P(3≤ X ≤6) and P(4≤ X).

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 8.4.25RE

To determine

To check: Whether the claim that the proportion of population 1 is same as the proportion of population 2 or not.

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Answer 3

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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 8.4.25RE

To determine

To check: Whether the claim that the proportion of population 1 is same as the proportion of population 2 or not.

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Answer 4

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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 8.4.25RE

To determine

To check: Whether the claim that the proportion of population 1 is same as the proportion of population 2 or not.

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Answer 5

Chapter 8, Problem 8.4.25RE

To determine

To check: Whether the claim that the proportion of population 1 is same as the proportion of population 2 or not.

Answer 6

Chapter 8, Problem 8.4.25RE

To determine

To check: Whether the claim that the proportion of population 1 is same as the proportion of population 2 or not.

Answer 7

Chapter 8, Problem 8.4.25RE

To determine

To check: Whether the claim that the proportion of population 1 is same as the proportion of population 2 or not.

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To check: Whether the claim that the proportion of population 1 is same as the proportion of population 2 or not.

Solution Summary: The author concludes that there is no evidence to support the claim that the proportion of population 1 is the same as the population 2.

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