Population standard deviation

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SAT Scores. The College Board reported the following mean scores for the three parts of the SAT:

Assume that the population standard deviation on each part of the test is σ = 100.

critical reading - 502

mathematics - 515

writing- 494

1. For a random sample of 30 test takers, what is the sampling distribution of x- for scores on the Critical Reading part of the test?

2. For a random sample of 60 test takers, what is the sampling distribution of x- for scores on the Mathematics part of the test?

3. For a random sample of 90 test takers, what is the sampling distribution of x-for scores on the Writing part of the test?

Reference no: EM133458767

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