60 67 74 a. The mean is 81 Based on the graph of this normal distribution, b. The standard deviation is 88 Enter an integer or decimal number [more..] c. 68% of the data values are between d. 95% of the data values are between 95 e. 99.7% of the data values are between and and and 102 Q

Q: Consider the AR(1) model, x, --₁x₁_₁+₁ μ=z₁ with ₁ = 0.6, p=9, o? = 0.1 X100 = 8.9, X99 = 9, X98 = 9…

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A: We will attempt only first 3 parts as per guidelines of Bartleby.

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Q: You may need to use the appropriate appendix table or technology to answer this question. A simple…

A: Sample  size(n)=70sample mean()=90population standard deviation()=5

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A: Sample size=101Sample mean=4.3Sample standard deviation=0.4

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A: Mean score= 175Standard deviation=7.55Margin of error =1.5Confidence level=99%

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