How many students must be randomly selected to estimate the mean weekly earnings of students at one college? We want 95% confidence that the sample mean is within $22
of the population mean, and the population standard deviation is known to be $1818.
I have other problems too, but I didnt want to post a lot on one post
Are we able to post the worksheet on the forum?
of the population mean, and the population standard deviation is known to be $1818.
The graph depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test).Find the indicated IQ score. Round your answer to nearest tenth. | The shaded area under the curve is 0.10. |
I have other problems too, but I didnt want to post a lot on one post
Are we able to post the worksheet on the forum?
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