22. In an attempt to compare the durability of two different materials (X and Y), 10 pieces of type X and 14 pieces of type Y were used. From these samples we calculate the statistics: X = 129.44, y = 122.65, sx = 9.15, sy = 11.02. Assuming the two populations sampled are normal with equal variance, find the P-value.

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A: x x2 3.1 9.61 5.2 27.04 1.2 1.44 5.1 26.01 4.9 24.01 2.3 5.29 6.1 37.21 1.4 1.96…

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A: Hey there! Thank you for posting the question. Since there are two questions posted, we will answer…

Q: To compare the dry braking distances from 30 to 0 miles per hour for two makes of automobiles, a…

A: GivenMake Ax1^=42s1=4.9n1=35Make Bx2^=43s2=4.6n2=35α=0.10

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A: Hypothesis testing

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Q: To compare the dry braking distances from 30 to 0 miles per hour for two makes of​ automobiles, a…

A: we have given that  n1=35 ,n2=35 ,xbar =43,  xbar =44 ,sigma1=4.7 and sigma2=4.5   Note : according…

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A: For make A, sample size n1 = 35, sample mean = 40 and population SD = 4.8 For make B, sample size n2…

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Q: To compare the dry braking distances from 30 to 0 miles per hour for two makes of automobiles, a…

A: Other parts are not provided by you. Still I have tried to provide you detailed solution

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Q: The weights (in kg.) of 8 students of class VII are 38, 42, 43, 50, 48, 45, 52 and 50. Test the…

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