Table 1: Thirty years ago, the following percentages held for the college majors of community college students; Hard Sci

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Table 1 Thirty Years Ago The Following Percentages Held For The College Majors Of Community College Students Hard Sci 1 (86.98 KiB) Viewed 31 times

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Table 1: Thirty years ago, the following percentages held for the college majors of community college students; Hard Sciences (30%), Social Sciences (45%), Mathematics (10%), History (8 %), and Languages (7%). The researcher decides to test his hypothesis that college majors for college students is different today than 30 years ago. The research asks the 500 college students in Los Angeles, California to state their favorite music genre and obtains the following data (data are listed below). The researcher wants to maximize the power for the test. Hard Social Mathematics History Languages Total Science Science 30% 45% 10% 8% 7% 0.3 0.45 0.1 0.08 0.07 Expected 150 225 50 40 35 Observed 147 210 65 50 28 500 500
Question 4 Table 1: The Critical Value (Note: Round to Three Decimal Places)? 0 / 0.64 pts
Question 6 0/0.64 pts Table 1: What is the correct value of the test statistic (Note: Round to Three Decimal Places)?
Table 2: A researcher wants to determine whether a relationship exists between Age and Musical Taste. The researcher collects data on 160 individuals and records their Age and their Favorite Genre of Music. The researcher classifies the ages as either "Young" or "Old" and classifies the Favorite Musical Genres. The data are listed below. The researcher wants to minimize the probability of a Type I Error for this test. Pop Hip-Hop Alternative Classic Rock Total Young Expected Observed 60 80 40 20 200 Middle Expected Observed 20 20 80 140 Old Expected Observed 5 5 60 105 400 Total 85 20 10 70 40 140
Question 9 Table 2: The Critical Value (Note: Round to Three Decimal Places)? 0/0.64 pts
0/0.64 pts Question 12 Table 2: What is the correct value of the test statistic (Note: Round to Three Decimal Places)?
Table 3: Fifty years ago, the following percentages held for the number of children per family in the United States; 5 Children (10%), 4 Children (20%) , 3 Children (35%), 2 Children (25%), 1 Child (8%), and 0 Children (2%). The researcher decides to test his hypothesis that the number of children per family in the United States is different today than 50 years ago. The research interviews the 1000 families in California and asks each family the number of children in their family and obtains the following data (data are listed below). The researcher wants to minimize the probability of a Type I Error for the test. 5 Children 4 Children 3 Children 2 Children 1 Child 0 Children Total 10% 20% 35% 25% 8% 2% 0.1 0.2 0.35 0.25 0.08 0.02 Expected 100 200 350 250 80 20 Observed 40 80 294 310 206 70 1000 1000
I Question 14 Table 3: The Critical Value (Note: Round to Three Decimal Places)? 0/0.64 pts
d Question 17 0 / 0.64 pts Table 3: What is the correct value of the test statistic (Note: Round to Three Decimal Places)?
a Table 8: A researcher wants to determine whether a relationship exists between Age and Musical Taste. The researcher collects data on 500 individuals and records their Age and their Favorite Genre of Music. The researcher classifies the ages as either "20 - 39", "40 - 59", "60 - 79" or "80 - 89" and classifies the Favorite Musical Genres. The data are listed below. The researcher wants to minimize the probability of a Type I Error for test. Pop Hip-Hop Classic Rock 50's Rock Total 20-39 Expected Observed 80 20 20 180 40-59 Expected Observed 20 40 160 60-69 Expected Observed 80 80-89 Expected Observed Total 60 40 10 5 115 10 5 115 60 40 30 150 80 220 140 120 600
Question 21 0/0.64 pts Table 4: What is the correct value of the test statistic (Note: Round to Three Decimal Places)?
red Question 24 Table 4: The Critical Value (Note: Round to Three Decimal Places)? 0/0.64 pts