MATH302-QUIZ - FINAL - 1.0 1.0 Points Question 1 of 23 The...

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Question 1 of 231.0/ 1.0 PointsThe 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 TypeObserved FrequenciesGerminatedFailed to Germinate131725733387604524451019A.Yes, because the test value 16.86 is greater than the critical value of 13.28B.Yes, because the test value 16.86 is less than the critical value of 14.86C.No, because the test value 16.86 is greater than the critical value of 13.28D.No, because the test value 13.28 is less than the critical value of 16.86Answer Key: A
Question 2 of 231.0/ 1.0 PointsThe chi-square goodness-of-fit test can be used to test for:
Part 2 of 16 - 3.0/ 3.0 PointsQuestion 3 of 231.0/ 1.0 PointsIn choosing the “best-fitting” line through a set of points in linear regression, we choose the one with the:
Question 4 of 231.0/ 1.0 PointsA single variable X can explain a large percentage of the variation in some other variable Y when the two variables are:
Question 5 of 231.0/ 1.0 PointsOutliers are observations that
A.disrupt the entire linear trendB.lie outside the typical pattern of pointsC.lie outside the sample D.render the study uselessAnswer Key: B
Part 3 of 16 - 2.0/ 2.0 PointsQuestion 6 of 231.0/ 1.0 PointsSerum ferritin is used in diagnosing iron deficiency. In a study conducted recently researchers discovered that in a sample of 28 elderly men the sample standard deviation of serum ferritin was 52.6 mg/L. For 26 younger men the sample standard deviation was 84.2 mg/L. At the .01 level of significance, do these data support the conclusion that the ferritin distribution in elderly men has a smaller variance than in younger men?

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