To test Hn: µ= 50 versus H,: µ < 50, a random sample of size n = 22 is obtained from a population that is known to be normally distributed. Complete parts (a) through (d) below. Click here to view the t-Distribution Area in Right Tail. (a) If x = 47.1 and s = 12.4, compute the test statistic. to (Round to three decimal places as needed.)

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A: n1=12, n2=12x¯1=0.48, x¯2=0.43s1=0.95, s2=1.16

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A: Given data, Group size 35 Group size 65 Group size 24/24F 91 91 79 101 144 84 109 177 126…

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Q: 35 - 65 e 24 /24F 91 99 110 91 144 176 80 86 124

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A: Assume that the current measurements in a strip of wire follow a normal distribution.

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A: The formula of the mean is: Meanμ = ΣX N

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A: a)   Assume that μ is the population average of arsenic level.

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A: Given that  Mean difference (x - y) is 29.3 First three  subparts already solve.

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Q: The annual rainfall in a certain region is modeled using the normal distribution shown below. The…

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