8.21 Suppose that it is known that the quotient of the population made up of children between 9 and 13 years old has a mean of 45. An inverted person wants to test the hypothesis that the mean of a subgroup of that population is greater, for which he takes a sample of size 30 of that subgroup and find the statistics X = 49.05 and Sx = 14.80. He tests the inverter hypothesis with a = 0.05. What is the observed level of significance of the sample? What would be the conclusion with a = 0.10 ? Assume Normal distribution.

Q: 5. 8. 45°

A: Solve for value x

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A: 14 Consider the sine angle property is, sinx=perpendicularhypotenuse

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A: trigonometry rule

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Q: 2. 6. 1.

A:

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A: Given: The result that includes the one-step estimate is determined as below,

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A:

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Q: d) | 4f(x)| dæ =

A:

Q: 18. 32 13

A:

Q: 14.

A: I have used theorem for circle

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Q: %3D 6.

A: Please see the explanation below

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A: Take ln on both sides.

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Q: 4. 15 33,

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Q: 3 19.21 11 11

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Q: 5.1  5

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A:

Q: Find the value of each variable. If your answer is not an integer, round to the nearest tenth.

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