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5) 13,782.24 Question 10 (1 point) Suppose that the average and standard deviation of the fine...
4) 282 5) 70.5 Question 9 (1 point) Total enrollment in the Kalamazoo Public Schools have...
4) 282 5) 70.5 Question 9 (1 point) Total enrollment in the Kalamazoo Public Schools have a mean and standard deviation of 11,485.2 and 19.2, respectively. The district expects growth in the next five years, so every observation in the dataset is multiplied by 1.2. What will the new mean be? 1) 11,485.2 2) 11,486.4 3) 1.2 4) 9,571 5) 13,782.24 Suppose that the average and standard deviation of the tine for speeding on a particular highway are 111.12 and...
4) (85.04, 137.2) 5) (137.2, 85.04) Question 11 (1 point) The average number of typical text...
4) (85.04, 137.2) 5) (137.2, 85.04) Question 11 (1 point) The average number of typical text pages a standard print cartridge produces is 300.7 pages based on 9 printers. After the 10th printer is tested, the average is 301.7 pages. How many pages did the last cartridge produce? 1) 301 2) -1 3) 1 4) 302 5) 311 Question 12 (1 point) nymber of hours a PC gamer spends using Steam is 93.38 hours per metric (e.g. in the plot...
The average height of an adult male is 60.45" with a standard deviation of 1.02". Calculate...
The average height of an adult male is 60.45" with a standard deviation of 1.02". Calculate an interval that is symmetric around the mean such that it contains approximately 95% of heights. Assume that height has a normal distribution. Question 8 options: 1) (59.43, 61.47) 2) (58.41, 62.49) 3) (61.47, 59.43) 4) (62.49, 58.41) 5) (60.45, 1.02)
Question 10 14 pts Suppose X is a random variable with mean 100 and standard deviation...
Question 10 14 pts Suppose X is a random variable with mean 100 and standard deviation 15. Suppose that we select random samples of size n=81 to construct a sampling distribution of means. Then which of the following is NOT true? Given enough samples, the shape of the sampling distribution will be approximately normal The standard deviation of the sampling distribution is 15/9 The mean of the sampling distribution is 100 The mean of any random sample will be 100...
please Answer question 9 and 10 Question 4 answer is : The distribution is not normally...
please Answer question 9 and 10
Question 4 answer is : The distribution is not normally
distributed.
Question 6 answer is : 80%
Question 7 answer is : 92%
Question 8 answer is : 98%
Question: Using the computer (Excel), answer the following 10 questions: Assessing Normality Many times in statistics it is necessary to see if a set of data values is approximately normally dis- tributed. There are special techniques that can be used. One technique is to draw...
Question 8 (1 point) Suppose that the mean and standard deviation of the scores on a...
Question 8 (1 point) Suppose that the mean and standard deviation of the scores on a statistics exam are 89.2 and 6.49, respectively, and are approximately normally distributed. Calculate the proportion of scores below 77. 1) 0.7854 2) 02146 3) 0.0301 4) We do not have enough information to calculate the value. 5) 0.9699
How do you do question 23? u, lilas meanl.s ounces and standard deviation 0.125 ounce, what...
How do you do question 23?
u, lilas meanl.s ounces and standard deviation 0.125 ounce, what proportion of the pucks will be usable in professional games? 20. Hockey pucks used in professional hockey games must weigh between 5.5 and 6 ounces. f the weight of pucks manufactured by a particular process is bell-shaped and has mean 5.75 ounces, how large can the standard deviation be if 99.7% of the pucks are to be usable in professional games? 22. Suppose that,...
1. Suppose a variable has a normal distribution with mean 10 and standard deviation 2. Use...
1. Suppose a variable has a normal distribution with mean 10 and standard deviation 2. Use the Empirical Rule to calculate the approximate PERCENTAGE area. What is the PERCENTAGE of values ABOVE 12? Note: Enter X.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 27 is entered as 27.00, 3.5 is entered as 3.50, 0.3750 is entered as 0.38 |Enter PERCENTAGE in above blank with NO % sign. | 2. Suppose a variable has a...
For each of the following variables, identify the type of variable (categorical vs. numeric). (I) Number...
For each of the following variables, identify the type of
variable (categorical vs. numeric).
(I) Number of auto insurance claims in a month
(II) Film genre (e.g. comedy, horror, drama, etc)
Question 1 options:
1)
(I) Categorical , and (II) Categorical
2)
There is no correct match.
3)
(I) Categorical , and (II) Numeric
4)
(I) Numeric , and (II) Numeric
5)
(I) Numeric , and (II) Categorical
Question 2 (1 point)
Saved
For each of the following variables, identify...
(1 point) The distribution of heights of adult men in the U.S. is approximately normal with mean 69 inches and standard deviation 2.5 inches Use what you know about a normal distribution and the...
(1 point) The distribution of heights of adult men in the U.S. is approximately normal with mean 69 inches and standard deviation 2.5 inches Use what you know about a normal distribution and the 68-95-99.7 rule to answer the following NOTE: If your answer is a percent, such as 25 percent, enter: "25 PERCENT" (without the quotes). If your answer is in inches, such as 10 inches, enter: "10 INCHES" (without the quotes and with a space between the number...
4) 282 5) 70.5 Question 9 (1 point) Total enrollment in the Kalamazoo Public Schools have a mean and standard deviation of 11,485.2 and 19.2, respectively. The district expects growth in the next five years, so every observation in the dataset is multiplied by 1.2. What will the new mean be? 1) 11,485.2 2) 11,486.4 3) 1.2 4) 9,571 5) 13,782.24 Suppose that the average and standard deviation of the tine for speeding on a particular highway are 111.12 and...
4) (85.04, 137.2) 5) (137.2, 85.04) Question 11 (1 point) The average number of typical text pages a standard print cartridge produces is 300.7 pages based on 9 printers. After the 10th printer is tested, the average is 301.7 pages. How many pages did the last cartridge produce? 1) 301 2) -1 3) 1 4) 302 5) 311 Question 12 (1 point) nymber of hours a PC gamer spends using Steam is 93.38 hours per metric (e.g. in the plot...
Question 10 14 pts Suppose X is a random variable with mean 100 and standard deviation 15. Suppose that we select random samples of size n=81 to construct a sampling distribution of means. Then which of the following is NOT true? Given enough samples, the shape of the sampling distribution will be approximately normal The standard deviation of the sampling distribution is 15/9 The mean of the sampling distribution is 100 The mean of any random sample will be 100...
please Answer question 9 and 10
Question 4 answer is : The distribution is not normally
distributed.
Question 6 answer is : 80%
Question 7 answer is : 92%
Question 8 answer is : 98%
Question: Using the computer (Excel), answer the following 10 questions: Assessing Normality Many times in statistics it is necessary to see if a set of data values is approximately normally dis- tributed. There are special techniques that can be used. One technique is to draw...
Question 8 (1 point) Suppose that the mean and standard deviation of the scores on a statistics exam are 89.2 and 6.49, respectively, and are approximately normally distributed. Calculate the proportion of scores below 77. 1) 0.7854 2) 02146 3) 0.0301 4) We do not have enough information to calculate the value. 5) 0.9699
How do you do question 23?
u, lilas meanl.s ounces and standard deviation 0.125 ounce, what proportion of the pucks will be usable in professional games? 20. Hockey pucks used in professional hockey games must weigh between 5.5 and 6 ounces. f the weight of pucks manufactured by a particular process is bell-shaped and has mean 5.75 ounces, how large can the standard deviation be if 99.7% of the pucks are to be usable in professional games? 22. Suppose that,...
For each of the following variables, identify the type of
variable (categorical vs. numeric).
(I) Number of auto insurance claims in a month
(II) Film genre (e.g. comedy, horror, drama, etc)
Question 1 options:
1)
(I) Categorical , and (II) Categorical
2)
There is no correct match.
3)
(I) Categorical , and (II) Numeric
4)
(I) Numeric , and (II) Numeric
5)
(I) Numeric , and (II) Categorical
Question 2 (1 point)
Saved
For each of the following variables, identify...
(1 point) The distribution of heights of adult men in the U.S. is approximately normal with mean 69 inches and standard deviation 2.5 inches Use what you know about a normal distribution and the 68-95-99.7 rule to answer the following NOTE: If your answer is a percent, such as 25 percent, enter: "25 PERCENT" (without the quotes). If your answer is in inches, such as 10 inches, enter: "10 INCHES" (without the quotes and with a space between the number...
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