a.) Given sample data: 61.2, 61.9, 62.8, 63.1, 64.0, 64.3, 64.9, 65.5, 66.3 and 67.9, test...

a.) Given sample data: 61.2, 61.9, 62.8, 63.1, 64.0, 64.3, 64.9, 65.5, 66.3 and 67.9,
test H₀: m £ 62.89 versus H₁: m > 62.89 at a = 0.05.

b.) Test H₀: π = 0.25 versus H_A: π ¹ 0.25 with p = 0.33 and n = 100 at alpha = 0.05 and 0.10.

c.) Test at α =.05 and 0.10 the hypothesis that a majority (more than 50%) of students favor the plus/minus grading system at a university if in a random sample of 500 students, 265 favor the system?

d.) The population of lengths of aluminum-coated steel sheets is normally distributed with a mean of 30.0 inches and a standard deviation of 0.9 inches. A sample of 36 metal sheets is randomly selected from a batch. What is the probability that the average length of a sheet is between 29.82 and 30.27 inches long?

Expert Solution

milcah answered 2 days ago

1. Given sample data: 61.2, 61.9, 62.8, 63.1, 64.0, 64.3, 64.9, 65.5, 66.3 and 67.9, test...

1. Given sample data: 61.2, 61.9, 62.8, 63.1, 64.0, 64.3, 64.9, 65.5, 66.3 and 67.9, test H0: m £ 62.89 versus H1: m > 62.89 at a = 0.05 2. Test H0: π = 0.25 versus HA: π ¹ 0.25 with p = 0.33 and n = 100 at alpha = 0.05 and 0.10.

Compute the value of an appropriate test statistic for the given hypothesis test and sample data....

Compute the value of an appropriate test statistic for the given hypothesis test and sample data. Assume that the population is normally distributed and that the sample has been randomly selected. H0: σ = 3.3 H1: σ > 3.3 n = 13 s = 7.2 α = 0.05

A 64.0 g sample of CH3OH is condensed isothermally and reversibly to liquid at 64 C....

A 64.0 g sample of CH3OH is condensed isothermally and reversibly to liquid at 64 C. The standard enthalpy of vaporization of CH3OH is 35.3 kJ/ mol. Find w, q, change in U, and change in H for this process.

Given the sample data. x: Given the sample data. x: 23, 17,15,32,25 (a) Find the range....

Given the sample data. x: Given the sample data. x: 23, 17,15,32,25 (a) Find the range. (Enter an exact number.) (b) Verify that Σx = 112 and Σx2 = 2,692. (For each answer, enter an exact number.) Σx = Σx2 = (c) Use the results of part (b) and appropriate computation formulas to compute the sample variance s2 and sample standard deviation s. (For each answer, enter a number. Round your answers to two decimal places.) s2 = s = ...

Suppose you want to test the claim the the paired sample data given below come from...

Suppose you want to test the claim the the paired sample data given below come from a population for which the mean difference is μd=0μd=0. x: 51 66 54 78 89 71 70 y: 91 63 56 79 59 77 56 Use a 0.050.05 significance level to find the following: (a) The mean value of the differnces dd for the paired sample data d⎯⎯⎯=d¯= (b) The standard deviation of the differences dd for the paired sample data sd=sd= (c) The t test statistic...

Suppose you want to test the claim the paired sample data given below come from a...

Suppose you want to test the claim the paired sample data given below come from a population for which the mean difference is ??=0. x 73 59 88 59 67 86 51 y 67 65 80 55 76 67 57 Use a 0.05 significance level to find the following: (a) The mean value of the difference ? for the paired sample data d¯= (b) The standard deviation of the differences ? for the paired sample data ??= (c) The t-test statistic ?= (d) The...

1. Use the given sample data to find the P-value for the hypothesis test. Round your...

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The mean height of women in a country (ages 20minus−29) is 64.3 inches. A random sample...

The mean height of women in a country (ages 20minus−29) is 64.3 inches. A random sample of 65 women in this age group is selected. What is the probability that the mean height for the sample is greater than 65 inches? Assume sigmaσequals=2.69 The probability that the mean height for the sample is greater than 65 inches is

Please run a two sample test on independent means using the given data. You may use...

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