Final Exam - Final Exam_MATH302 Part 1 of 16 2.0 2.0 Points...

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Final Exam_MATH302 Part 1 of 16 - 2.0/ 2.0 Points Question 1 of 23 1.0/ 1.0 Points The chi-square goodness-of-fit test can be used to test for: A.normality B.difference between population means C.significance of sample statistics D.difference between population variances Answer Key: A
Question 2 of 23 1.0/ 1.0 Points The data presented in the table below resulted from an experiment in which seeds of 5 different types were planted and the number of seeds that germinated within 5 weeks after planting was recorded for each seed type. At the .01 level of significance, is the proportion of seeds that germinate dependent on the seed type? Seed Type Observed Frequencies Germinated Failed to Germinate 1 31 7 2 57 33 3 87 60 4 52 44
Part 2 of 16 - 3.0/ 3.0 Points Question 3 of 23 1.0/ 1.0 Points Data for a sample of 25 apartments in a particular neighborhood are provided in the worksheet Apartments in the Excel workbook Apartments.xlsx. Using that data, find the estimated regression equation which can be used to estimate the monthly rent for apartments in this neighborhood using size as the predictor variable.
Question 4 of 23 1.0/ 1.0 Points The city of Oakdale wishes to see if there is a linear relationship between the temperature and the amount of electricity used (in kilowatts). Based on the data in the table below, is there a significant linear relationship between temperature and the amount of electricity used? These data are also available in the worksheet temperature in the Excel workbook Temperature.xlsx.
Temperature (x) 73 78 85 98 93 81 76 105 Kilowatts (y) 680 760 910 1510 1170 837 600 1800 A.No, the sample correlation coefficient is equal to 0.981, which does not provide evidence of a significant linear relationship. B.Yes, the sample correlation coefficient is equal to 0.878, which provides evidence of a significant linear relationship. C.Yes, the sample correlation coefficient is equal to 0.981, which provides evidence of a significant linear relationship. D.No, the sample correlation coefficient is equal to 0.098, which does not provide evidence of a significant linear relationship. Answer Key: C

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