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Regression and Predictions. Exercises 13–28 use the same data sets as Exercises 13–28 in Section 10-1. In each case, find the regression equation, letting the first variable be the predictor (x) variable, Find the indicated predicted value by following the prediction procedure summarized in Figure 10-5 on page 493.
17. CSI Statistics Use the shoe print lengths and heights to find the best predicted height of a male who has a shoe print length of 31.3 cm. Would the result be helpful to police crime scene investigators in trying to describe the male?
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- If the general linear regression model is given by the equation: y = a + b?; considering the informationobtained in Figure 2 above, compute the value of a.arrow_forwardRegression and Predictions. Exercises 13–28 use the same data sets as Exercises 13–28 in Section 10-1. In each case, find the regression equation, letting the first variable be the predictor (x) variable. Find the indicated predicted value by following the prediction procedure summarized in Figure 10-5 on page 493. Internet and Nobel Laureates Find the best predicted Nobel Laureate rate for Japan, which has 79.1 Internet users per 100 people. How does it compare to Japan’s Nobel Laureate rate of 1.5 per 10 million people?arrow_forwardChapter 5, Section 1, Exercise 019 MORE BENEFITS OF EATING ORGANICUsing specific data, we find a significant difference in the proportion of fruit flies surviving after 13 days between those eating organic potatoes and those eating conventional (not organic) potatoes. This exercise asks you to conduct a hypothesis test using additional data. In this case, we are testing H0 : po= pcHa: po > pc where po and pc represent the proportion of fruit flies alive at the end of the given time frame of those eating organic food and those eating conventional food, respectively. Use a 5% significance level.Effect of Organic Bananas After 25 DaysAfter 25 days, the proportion of fruit flies eating organic bananas still alive is 0.42, while the proportion still alive eating conventional bananas is 0.40. The standard error for the difference in proportions is 0.029.What is the value of the test statistic?Round your answer to two decimal places. z= What is the p-value?Round your answer to…arrow_forward
- Chapter 6, Section 4-D, Exercise 181 Use the formula to find the standard error of the distribution of differences in sample means, x¯1-x¯2.Samples of size 26 from Population 1 with mean 6.6 and standard deviation 4.0 and samples of size 44 from Population 2 with mean 8.5 and standard deviation 7.4Round your answer for the standard error to two decimal places.standard errorarrow_forwardAltman Z Score 2018 2019 2020 BHP 0.80 0.71 0.63 FMG 1.12 1.26 1.38 RIO 1.36 1.34 1.34 Comment on the findings of each company and is it useful in predicting financial failurearrow_forward2. Given the following sets of information, find the linear least squares regression and the correlation coefficient.arrow_forward
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- In Australia, 16% of the adult population is nearsighted.17 If three Australians are chosen at random, what is the probability that two are nearsighted and one is not? 2.state each of the five assumptions of the classical regression model (OLS) and give an intuitive explanation of the meaning and need for each of them.arrow_forwardThe quadratic regression equation shown below is for a sample of n=22. Determine the critical value(s).arrow_forwardFit a multiple linear regression model to the given data. as X1,X2,X5, and X6 as regressors.arrow_forward
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