Fill in the blank: In a test of Ho: µ 2 10 versus H¡: µ < 10, the sample mean was X the P-value was 0.04. This means that if u = 10, and the experiment were repeated 100 times, we would expect to obtain a value of X of 8 or less approximately = 8 and times. i. 10 ii. iii. 4 iv. 8

Assume that you want to test the claim that the paired smaple data come from a population for which the mean difference is population mean d=0. Compute the value of the t test statistic.  Round intermediate calculations to four decimal places as need and final answers to three decimal places as needed x 9 6 7 5 12 y 6 8 3 6 7

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1:40 b hank y A ALEKS Week 4 Quiz 1 20+ Sig 0 2 Continue e Xenial → 3 Accordi www-awu.aleks.com/aleksc ALEKS 4 X 5 ALEKS 6 5GUC.ll 100% A ALE X 7 30 Suppose that a researcher is interested in estimating the mean systolic blood pressure, μ, of executives the blood pressures of a random sample of executives of major corporations to estimate U. Assuming th population of systolic blood pressures of executives of major corporations is 27 mm Hg, what is the mini researcher to be 95% confident that his estimate is within 5 mm Hg of U? + Carry your intermediate computations to at least three decimal places. Write your answer as a whole num minimum whole number that satisfies the requirements). (If necessary, consult a list of formulas.) Español 8 Save For Later © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility O E |||

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T-TEST FOR INDEPENDENT MEANS 1. Two types of instruments for measuring the amount of sulfur monoxide in the atmosphere are being compared in an air pollution experiment. It is desired to determine whether the types of instruments yield measurement having the same variability. The following readings were recorded for the instrument. Sulfur Monoxide Instrument A Instrument B 0.86 0.87 0.82 0.74 0.75 0.63 0.61 0.55 0.89 0.76 0.64 0.70 0.81 0.69 0.68 0.57 0.65 0.53 Assuming the population of measurements to be approximately normally distributed, test the null hypothesis using two tailed test at 0.05 level of significance.

On a scale of 0 to 10, the student rated her enjoyment of stats as an 8. The average rating among students is 5, and the average spread around that mean is 1.5.  I got the z score as 2.0. Can you kindly help with these questions below?   What percent of college students enjoy statistics more? What percent of college students enjoy statistics less?

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