IQ scores are normally distributed with a mean of 100 and a standard

deviation of 15 Assume that many samples of size n are taken from a large population of people and the mean IQ score is computed for each sample.

a. If the sample size is n equals =64 find the mean and standard deviation of the distribution of sample means.

The mean of the distribution of sample means is ?

.
The standard deviation of the distribution of sample means is ?
.
(integer or decimal rounded to the nearest tenth as​ needed.)
b. If the sample size is n equals =100 find the mean and standard deviation of the distribution of sample means.

The mean of the distribution of sample means is ?
.

The standard deviation of the distribution of sample means is ?

.
(integer or decimal rounded to the nearest tenth as​ needed.)

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