Give the degrees of freedom for the chi-square test based on the two-way table. Strongly Agree Strongly Disagree Agree Neutral Disagree Control 40 50 5 15 10 Treatment 60 45 10 5 Degrees of freedom = i

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Q: As the value of α gets smaller, how does this affect the z-score?

A: Here use basic of z-score calculations

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A: Given, n = 5 x¯=∑xn=4455=89 s=∑x2-(∑x)2nn-1      =40605-445255-1=40605 - 396054=10004=250=15.81…

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Q: Which test? For each of the following situations, statewhether you’d use a chi-square…

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A: In paired t test, means of two related groups are compared.

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A: Given:a)µ=73.4M=3s=8.40Sample size (n)=150b)n=100µ0=480X¯=536σ2=102

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A: Fr the given information we find the probability.

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A: Test statistic:The test statistic for hypothesis test for proportion is given by:

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A: sample mean = xbar = Total/n =(4.2+3.9+3.6+3.5+3.9+3.8+3.8+4.1+3.9+3.8+3.2+3.4)/12 =3.7583

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A: Solution: The estimated regression equation is  Sales^=1.7586+0.2124×Age-0.7527×MIL+4.8124×ENG

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A: True.

Q: This deals with the collectio make decisions and solve p O Data Analysis O Engineering Method O…

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Q: How many degrees of freedom do you lose in a dependent samples t-test? 1, 2, 3, or 4?

A: How many degrees of freedom do you lose in a dependent samples t-test?

Q: Classify the following sentence as True or False: Repeated testing can alter the effects of a study.

A: Classify the following sentence as True or False: Repeated testing can alter the effects of a study.

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A: Formula for z score is

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A: (a) The formula of z score is: Substitute μ=8.04   and  σ=0.54 in the formula to find the standard…

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A: For the given data u Perform t-Test: Two-Sample Assuming Equal Variances

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A: Given information: μDeparture=257, σDeparture=45, nDeparture=35μArrival=267, σArrival=35,…

Q: a) Explain what the statistician is doing here?   b) Classify this test according to Left, Right or…

A: Here use t test

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A: Empirical rule (68-95-99.7 rule):   About 68% of data lies within the first standard deviation of…

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Q: Q-5 Total students at college level were graded according to their IQ level and the economic…

A: Given :   High Low Total Rich 460 140 600 Poor 340 160 500 Middle 400 600 1000 Total 1200…

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Q: oes this data suggest that ticket class and survivability were dependent using α = 0.01?

A: Observed Expeceted (O-E)^2 (O-E)^2/E 117 189.794 5298.96 27.91954 187 114.206 5298.96 46.39825…