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12. For a particular sample, the mean is 3.7 and the standard deviation is 1.2. A...
a population has mean 48.4 and standard deviation 6.3 (a)find the mean and standard deviation of...
a population has mean 48.4 and standard deviation 6.3 (a)find the mean and standard deviation of x for samples of size 64 (b) find the probability that the mean of a sample of size 64 will be less that 46.7
Compute the mean and standard deviation for the following sample of n = 4 scores: 82,...
Compute the mean and standard deviation for the following sample of n = 4 scores: 82, 88, 82, 86 (Hint: To simplify the arithmetic, you can subtract 80 points from each score to obtain a new sample consisting of 2, 8, 2, and 6.) Compute the mean and standard deviation for the new sample. Mean: Standard deviation: What are the values of the mean and standard deviation for the original sample? Mean: Standard deviation:
8. Suppose that in a particular sample, the mean is 50 and the standard deviation is...
8. Suppose that in a particular sample, the mean is 50 and the standard deviation is 10. What is the Z score associated with a raw score of 68? Calculate and illustrate it in a curve. (1 Point)
1. A student was asked to compute the mean and standard deviation for the following sample...
1. A student was asked to compute the mean and standard deviation for the following sample of n= 5 scores: 81, 87, 89, 86, and 87. To simplify the arithmetic, the student first subtracted 80 points from each score to obtain a new sample consisting of 1,7,9,6, and 7. The mean and standard deviation for the new sample are then calculated to be M=6 and s = 3. What are the values of the mean and standard deviation for the...
An unknown distribution has a mean of 80 and a standard deviation of 12. A sample...
An unknown distribution has a mean of 80 and a standard deviation of 12. A sample size of 95 is drawn randomly from the population. Find the sum that is 1.5 standard deviations below the mean of the sums.
The mean number of touchdowns per football game is 3.7 with a population standard deviation of...
The mean number of touchdowns per football game is 3.7 with a population standard deviation of 0.9. A random sample of 31 football games was taken and the probability that the mean number of touchdowns for the sample will be more than 3.9 was found. Was the probability a Left-tail, Right -tail or Interval Probability? Use Excel to find the probability that the mean number of touchdowns for the sample will be more than 3.9. Select the two correct answers...
Find the sample mean and sample standard deviation of your data. What is the Z score? Pick three bills from the last 12...
Find the sample mean and sample standard deviation of your data. What is the Z score? Pick three bills from the last 12 months and change the values into z-scores. What does the z-score tell you about that particular month? Between what two values would be considered a normal bill? Remember, being within 2 Standard Deviations is considered normal. Are any of your bills in the last 12 months unusual? Very unusual? Are there times when you would accept an...
Find the sample mean and sample standard deviation of your data. What is the Z score?...
Find the sample mean and sample standard deviation of your data. What is the Z score? Pick three bills from the last 12 months and change the values into z-scores. What does the z-score tell you about that particular month? Between what two values would be considered a normal bill? Remember, being within 2 Standard Deviations is considered normal. Are any of your bills in the last 12 months unusual? Very unusual? Are there times when you would accept an...
please find a) mean AND b) standard deviation Medicine. The reaction times in minutes) of a...
please find a) mean AND b) standard deviation
Medicine. The reaction times in minutes) of a drug given to a random sample of 12 patients are: 3.8 6.3 4.2 4.1 4.2 5.4 4.6 6.3 6.7 4.3 5.7 6.7 a. Find the mean of the reaction times. mins (Type an integer or a decimal. Round to two decimal places.)
This assignment is past the original due date o This data is from a sample. Calculate the mean, standard deviation,...
This assignment is past the original due date o This data is from a sample. Calculate the mean, standard deviation, and variance 16.7 11.1 46.7 14.8 13.3 16.6 18.5 47.3 42,8 Please show the following answers to 2 decimal places. Sample Mean- Sample Standard Deviation (Please use the standard deviation above for your calculation.) Sample Variance Ooops- now you discover that the data was actually from a population! So now you must give the population standard deviation. Population Standard Deviation-...
Compute the mean and standard deviation for the following sample of n = 4 scores: 82, 88, 82, 86 (Hint: To simplify the arithmetic, you can subtract 80 points from each score to obtain a new sample consisting of 2, 8, 2, and 6.) Compute the mean and standard deviation for the new sample. Mean: Standard deviation: What are the values of the mean and standard deviation for the original sample? Mean: Standard deviation:
1. A student was asked to compute the mean and standard deviation for the following sample of n= 5 scores: 81, 87, 89, 86, and 87. To simplify the arithmetic, the student first subtracted 80 points from each score to obtain a new sample consisting of 1,7,9,6, and 7. The mean and standard deviation for the new sample are then calculated to be M=6 and s = 3. What are the values of the mean and standard deviation for the...
please find a) mean AND b) standard deviation
Medicine. The reaction times in minutes) of a drug given to a random sample of 12 patients are: 3.8 6.3 4.2 4.1 4.2 5.4 4.6 6.3 6.7 4.3 5.7 6.7 a. Find the mean of the reaction times. mins (Type an integer or a decimal. Round to two decimal places.)
This assignment is past the original due date o This data is from a sample. Calculate the mean, standard deviation, and variance 16.7 11.1 46.7 14.8 13.3 16.6 18.5 47.3 42,8 Please show the following answers to 2 decimal places. Sample Mean- Sample Standard Deviation (Please use the standard deviation above for your calculation.) Sample Variance Ooops- now you discover that the data was actually from a population! So now you must give the population standard deviation. Population Standard Deviation-...
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