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Quiz 3 - Name Date Quiz#3 MAT109 SUBMIT COMPLETED TESTS VIA...

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Name Quiz #3 MAT109 Date SUBMIT COMPLETED TESTS VIA WEBCT EMAIL - NOT THE DISCUSSION ROOM. Please make sure your name is on the document you attach, and include your initials in the name of the document, e.g., Quiz 3PK.doc. Make sure to attach after you choose your document. Thank you. 1) Given a set of test scores is normally distributed with μ=75.0 and σ =8.0, determine: a) P(X>65.0) = .105649839 8/ 65 = .992278 = 1- .992278 = .89435 b) P (67.0<X<80.6) = .5993811623 2) Given a set of test scores is normally distributed with μ=75.0 and σ =8.0, determine: a) Q 1 (the value of the first quartile) = 69.604082 1- 69.604 = -68.604 b) the endpoints of the middle 92% of the scores = 60.99451143 96% = 89.00548857 3) a)State the “Central Limit Theorem.” (You will need to know this theorem on the final exam.) Technically it is a thermo that the distribution of sample means taken from a large population approaches a normal curve. The book says it is regardless of the shape of the population, the sampling distribution of x becomes approximately normal as the sample size n increases.
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