BSAT 510 Assignment
BSAT 510 Assignment One – To Be Graded
Spring 2012
This assignment will count 50 points, per the syllabus.
Instructions: • Show all work on your own paper. It is not necessary to turn in the original data as long as your answers are clearly labeled. • For exercises completed with SPSS, include the computer output that supports your answers. • Clearly label and circle (or highlight by hand) each answer. In other words, don’t just circle a value on the page without indentifying the particular part of a particular question to which it corresponds. For example, label as “#2a”. • Write your name at the top of each page that you turn in. • Staple your pages in the upper left-hand corner. • Do not turn in computer work in electronic form; only …show more content…
What do you see as potential problems in conducting such a sample? Please briefly describe at least 2 potential problems.
3. A sample of scores on an exam given in QMET 251 are: Men: 72 69 98 66 85 76 79 80 77 Women: 81 67 90 78 81 80 76 a. At the .01 level of significance, is the mean grade for women higher than that for men? (be sure to include null and alternative hypotheses, decision including your reason for making the decision, and conclusion) b. Are the variances of these two groups equal or unequal? Explain your answer. c. If an employee of yours submitted this data and results to you, what questions or concerns would you have?
4. A student government organization wanted to demonstrate the relationship between the number of beers a person drinks and their blood alcohol content (BAC). A random sample of 18 students participated in a study in which each was randomly assigned a number of beers to drink, and a member of the sheriff’s office measured their BAC.
Person # Beers BAC Person # Beers BAC
1 6 .10 10 3 .07
2 7 .09 11 3 .05
3 7 .09 12 7 .08
4 4 .10 13 1 .04
5 5 .10 14 4 .07
6 3 .07 15 2
Spring 2012
This assignment will count 50 points, per the syllabus.
Instructions: • Show all work on your own paper. It is not necessary to turn in the original data as long as your answers are clearly labeled. • For exercises completed with SPSS, include the computer output that supports your answers. • Clearly label and circle (or highlight by hand) each answer. In other words, don’t just circle a value on the page without indentifying the particular part of a particular question to which it corresponds. For example, label as “#2a”. • Write your name at the top of each page that you turn in. • Staple your pages in the upper left-hand corner. • Do not turn in computer work in electronic form; only …show more content…
What do you see as potential problems in conducting such a sample? Please briefly describe at least 2 potential problems.
3. A sample of scores on an exam given in QMET 251 are: Men: 72 69 98 66 85 76 79 80 77 Women: 81 67 90 78 81 80 76 a. At the .01 level of significance, is the mean grade for women higher than that for men? (be sure to include null and alternative hypotheses, decision including your reason for making the decision, and conclusion) b. Are the variances of these two groups equal or unequal? Explain your answer. c. If an employee of yours submitted this data and results to you, what questions or concerns would you have?
4. A student government organization wanted to demonstrate the relationship between the number of beers a person drinks and their blood alcohol content (BAC). A random sample of 18 students participated in a study in which each was randomly assigned a number of beers to drink, and a member of the sheriff’s office measured their BAC.
Person # Beers BAC Person # Beers BAC
1 6 .10 10 3 .07
2 7 .09 11 3 .05
3 7 .09 12 7 .08
4 4 .10 13 1 .04
5 5 .10 14 4 .07
6 3 .07 15 2