The  table shows the no of absences x in a calculus course and the final exam grade y. Find the correlation coeffcient and interpret your result X  1 0 2 6 4 3 3 Y 95 90 90 55 70 80 85

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A: Solution: Given information: n= 117 Sample size  x = 32.4 Sample mean s= 13.8 Sample standard…

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A: The true mean of the number 1,2,3,4,5,6,7,8 is calculated as  μ=1+2+3+4+5+6+7+88  =368=4.5 x x2…

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Q: Find the following: P( z 1.03).

A: here given  z=  -1.03 and z= 1.03  here for probability use excel command

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Q: I want to explain these outputs

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A: Formula : Test statistic :

Q: If you want to be 95​% confident of estimating the population proportion to within a sampling error…

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Q: The lengths of adult males' hands are normally distributed with mean 188 mm and standard deviation…

A: GivenMean(μ)=188standard deviation(σ)=7.2sample size(n)=13

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A: Here, α=0.05, df1=1, and df2=12.

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Q: 40 0 -40 0.4 1980 2 4 6 8 10 1990 12 PACF -0.4 0.0 0.4 2000 1 2 T MA 4 6 8 2010 10 12

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A: Given that, n1 = 30 n2 = 25 x¯1=82.5x¯2=83.9 s12=80s22=125

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A: Given Information: Mean μ=50 Standard deviation σ=1 Sample size n=10

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Q: its ources cess Previous question Express the confidence interval 0.555 <p<0.999 in the form p +E.…

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Q: A certain population is normally distributed with a mean of 138 and a standard deviation of 10. How…

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Q: Systolic blood pressure levels above 120 mm Hg are considered to be high. For the 100 systolic blood…

A: Given that : u = 120 mm Hg Mean = 120.48000 ? = 15.73549 By using the one sample mean z test we…

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Q: O No, the confidence in

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Q: Use the t-distribution table to find the critical value(s) for the indicated alternative hypotheses,…

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Q: Using multiple linear regression, estimate the value of c in the given regression model. Use 4…

A: Given data: x 1 2 3 4 y 3.6 5.2 6.8 8.8

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Q: If you want to be 95​% confident of estimating the population mean to within a sampling error of ±2…

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Q: Shop Location Annual Return (Thousands of Dollars) Number of Households (Thousands) 1 Mall  185.69…

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Q: The percentage of alcohol in the cough syrup was measured in 101 randomly selected samples. The…

A: Here given, n = 101 S = Sample standard deviation  = 0.10 Here calculate confidence interval for…