My Notes Ask Your Teacher Consider the accompanying data on breaking load (kg/25

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My Notes Ask Your Teacher Consider the accompanying data on breaking load (kg/25 mm width) for various fabrics in both an unabraded condition and an abraded condition. Use the paired t test to test H0: muD = 0 versus Ha: mu D > 0 at significance level 0.01. (Use mu D = mu - muA.) State the rejection region(s). (If the critical region is one-sided, enter NONE for the unused region. Round your answers to three decimal places.) t NONE t Compute the test statistic value. (Round your answer to three decimal places.) t = 2/3 points | Previous Answers DevoreStat8 9.E.018. My Notes Ask Your Teacher Let mu1 and mu 2 denote true average densities for two different types of brick. Assuming normality of the two density distributions, test H0: mu1 - mu2 = versus Ha: mu - mu2 0 using the following data: m = 6, x - 24.79, s1 = 0.164, n = 5, y = 20.99, and S2 0.230. (Use alpha - 0.05. Round your test statistic to three decimal places and your P-value to four decimal places.) t = 30.9623 P-value =1

Explanation / Answer

1. Sample stats

d = 7.25
Sd = 11.8628

t = (d-u)/(Sd/sqrt n)

= (7.25-0)/(11.8628/sqrt 8) = 1.73

2 P-value = 2P(t>30.9623)

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