The probability that viewers of the ad that will make the purchase are at least 120 0f 11000 viewers if bundled package offered by Hargray Communication consist of a broadband internet, television cable, and basic telephone service at the cost of $99.99 for first three months. Also the company expects that 1% of the viewers of the ad will make the purchase of the service.

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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 21T

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To calculate: The probability that viewers of the ad that will make the purchase are at least 120 0f 11000 viewers if bundled package offered by Hargray Communication consist of a broadband internet, television cable, and basic telephone service at the cost of $99.99 for first three months. Also the company expects that 1% of the viewers of the ad will make the purchase of the service.

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Answer questions 8.1.10, 8.1.11and 8.1.12 respectively

7.2.10 Researchers in the Hopkins Forest also count the number of maple trees (genus acer) in plots throughout the forest. The following is a histogram of the number of live maples in 1002 plots sampled over the past 20 years. The average number of maples per plot was 19.86 trees with a standard deviation of 23.65 trees. a. If we took the mean of a sample of eight plots, what would be the standard error of the mean? b. Using the central limit theorem, what is the probability that the mean of the eight would be within 1 standard error of the mean? c. Why might you think that the probability that you calculated in (b) might not be very accurate? 2. A normal population has mean 100 and variance 25. How large must the random sample be if you want the standard error of the sample average to be 1.5?

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 21T

To determine

To calculate: The probability that viewers of the ad that will make the purchase are at least 120 0f 11000 viewers if bundled package offered by Hargray Communication consist of a broadband internet, television cable, and basic telephone service at the cost of $99.99 for first three months. Also the company expects that 1% of the viewers of the ad will make the purchase of the service.

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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 21T

To determine

To calculate: The probability that viewers of the ad that will make the purchase are at least 120 0f 11000 viewers if bundled package offered by Hargray Communication consist of a broadband internet, television cable, and basic telephone service at the cost of $99.99 for first three months. Also the company expects that 1% of the viewers of the ad will make the purchase of the service.

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Check out a sample textbook solution

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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 21T

To determine