Question
2. A given distribution has a population mean, , of 113 and a population standard deviation, , of 9. What z-score would be associated with
2. A given distribution has a population mean, , of 113 and a population standard deviation, , of 9. What z-score would be associated with the value x = 90?
Round to two decimal places, as needed.
3. A given distribution has a population mean, , of 108 and a population standard deviation, , of 15. What z-score would be associated with the value x = 149?
Round to two decimal places, as needed.
4. A given distribution has a population mean, , of 126 and a population standard deviation, , of 14. Compute the raw, x-value associated with a Z-score of 1.86.
Round to two decimal places, as needed.
5. A given distribution has a population mean, , of 146 and a population standard deviation, , of 14. Compute the raw, x-value associated with a Z-score of 1.09.
Round to two decimal places, as needed.
6. Suppose a population is known to be normally distributed with a mean, , equal to 116 and a standard deviation, , equal to 14. Approximately what percent of the population would be between 102 and 130?
7. Suppose a population is known to be normally distributed with a mean, , equal to 116 and a standard deviation, , equal to 14. Approximately what percent of the population would be between 130 and 144?
8. Suppose a population is known to be normally distributed with a mean, , equal to 116 and a standard deviation, , equal to 14. Approximately what percent of the population would be between 88 and 130?
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