When are p-values negative? when the sample statistic is smaller than the hypothesizec ) never ) when we fail to reject the null hypothesis ) when the test statistic is negative

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A: Here, μ=80 and σ=15

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Q: a) Suppose that X₁, X2, X3,...,Xn is a random sample of n from population X which has a chi- square…

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Q: Table 1. Critical Values from N(0,1) Distribution One-sided Two-sided 1.29 1.645 1.645 1.96 2.33…

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Q: What is the critical value? What is the p value?

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Q: a) Suppose that X₁, X2, X3,...,Xn is a random sample of n from population X which has a chi- square…

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Q: 6) Consider the following scatterplots of a dependent variable Y against an independent variable X.…

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Q: To test Hp 0.45 versus H, p<0.45, a simple random sample of n-450 individuals is obtained and x-109…

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Q: IQ scores are normally distributed with a mean of 100 and a standard deviation of 15, Use this…

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Q: 1. The manager of computer store has kept track of computers sold per day. Based on this information…

A: Here, all the values of PX lies between 0 and 1 and  ∑PX=0.08+0.17+0.26+0.21+0.18+0.10…

Q: The value ofr for 20 pairs of observations of two variables is-7. What is the possible value of R²…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…