Question

In: Statistics and Probability

A university wants to determine if students from different majors are equally likely to be cited...

A university wants to determine if students from different majors are equally likely to be cited for academic dishonesty. They average instances of documented cheating across 10 years for three different academic majors and find the following results: Business Administration (M = 5.1; N = 10), Fine Art (M = 1.9; N = 10), and Nursing (M = 3.2; N = 10). They also calculated the between-group and within-group sum of squares (SSB = 301.6; SSW =1343.8). Use a one-way ANOVA (where α = .01) to determine if there are significant differences in cheating rates by major.

  1. Identify the alternative hypothesis (F tests are always nondirectional)
  2. List your degrees of freedom (within)
  3. List your degrees of freedom (between)
  4. List your mean squares between groups
  5. List your mean squares within groups
  6. List your F test statistic
  7. List your critical F value(s)
  8. Are there statistically significant differences in cheating between majors? (Yes/No)
  9. Calculate partial eta-squared (η2) for the effect of major on cheating rates (list as decimal, 0.xx)
  10. Calculate Tukey’s HSD
  11. Use Tukey’s HSD to determine if the difference in cheating rates between Business Administration majors and Fine Art    majors is statistically significant (Yes/No)

Solutions

Expert Solution

orchestra answered 2 years ago
Next > < Previous

Related Solutions

A university wants to know if students who apply to be nursing majors and accounting majors...
A university wants to know if students who apply to be nursing majors and accounting majors differ in terms of their ages. If there are differences, that could inform their marketing strategies. They collect data from a random sample of 50 applicants to the nursing program and 50 application to the accounting program. They record each applicant's age in years. In this scenario, academic major is a                            [ Select ]      ...
         A group of researchers wants to determine if Caucasians and African-Americans are equally likely to...
         A group of researchers wants to determine if Caucasians and African-Americans are equally likely to inherit cystic fibrosis (CF). They collect data on cystic fibrosis (yes/no) and calculate frequencies for each group. They collected data from 820 people overall. They observed the following frequencies: White-YesCF (80), White-NoCF (430), Black-YesCF (16), Black-NoCF (294). Use a two-variable chi-square analysis (where α = .01) to determine if there are significant differences in cystic fibrosis by race.         7.      Identify the null hypothesis        ...
         A group of researchers wants to determine if Caucasians and African-Americans are equally likely to...
         A group of researchers wants to determine if Caucasians and African-Americans are equally likely to inherit cystic fibrosis (CF). They collect data on cystic fibrosis (yes/no) and calculate frequencies for each group. They collected data from 820 people overall. They observed the following frequencies: White-YesCF (80), White-NoCF (430), Black-YesCF (16), Black-NoCF (294). Use a two-variable chi-square analysis (where α = .01) to determine if there are significant differences in cystic fibrosis by race.            13.  Are there statistically significant...
A student wants to determine if pennies are really fair, meaning equally likely to land heads...
A student wants to determine if pennies are really fair, meaning equally likely to land heads up or tails up. He flips a random sample of 50 pennies and finds that 28 of them land heads up. Calculate the p-value and state the conclusion. Use ? = .05.
Question 1: A student at a university wants to determine if the proportion of students that...
Question 1: A student at a university wants to determine if the proportion of students that use iPhones is less than 0.34. If the student conducts a hypothesis test, what will the null and alternative hypotheses be? 1) HO: p < 0.34 HA: p ? 0.34 2) HO: p > 0.34 HA: p ? 0.34 3) HO: p = 0.34 HA: p ? 0.34 4) HO: p ? 0.34 HA: p < 0.34 5) HO: p ? 0.34 HA: p...
Saved A student at a university wants to determine if the proportion of students that use...
Saved A student at a university wants to determine if the proportion of students that use iPhones is greater than 0.4. The hypotheses for this scenario are as follows. Null Hypothesis: p ≤ 0.4, Alternative Hypothesis: p > 0.4. If the student randomly samples 27 other students and finds that 12 of them use iPhones, what is the test statistic and p-value? Question 7 options: 1) Test Statistic: -0.471, P-Value: 0.319 2) Test Statistic: -0.471, P-Value: 0.681 3) Test Statistic:...
8. At a university with 1,000 business majors, there are 200 business students enrolled in an...
8. At a university with 1,000 business majors, there are 200 business students enrolled in an introductory Accounting course. Of these 200 students, 50 are also enrolled in an introductory Statistics course. There are an additional 250 business students enrolled in Statistics but not enrolled in Accounting. If a business student is selected at random, what is the probability that the student is either enrolled in Accounting or Statistics or in both courses?
A fund manager wants to know if it is equally likely that the Nasdaq Average will...
A fund manager wants to know if it is equally likely that the Nasdaq Average will go up each day of the week. For each day of the week, the fund manager observes the following number of days when the Nasdaq Average goes up. Day of the Week Observed Monday 192 Tuesday 189 Wednesday 202 Thursday 199 Friday 218 For the goodness-of-fit test, the null and alternative hypotheses are ________. H0: p1 = p2 = p3 = p4 = 1/4,...
5. Penn State University wants to determine if students are satisfied with the dorm conditions. A...
5. Penn State University wants to determine if students are satisfied with the dorm conditions. A researchers takes random samples of 25 students from each year and the students are asked whether or not they are satisfied with the dorm conditions. The results of the study are given below: Freshman Sophomores Juniors Seniors Satisfied 15 12 9 7 Dissatisfied 10 13 16 18 Is there sufficient evidence of a difference in dorm room satisfaction among the various year levels? A....
a) A university planner wants to determine the proportion of spring semester students who will attend...
a) A university planner wants to determine the proportion of spring semester students who will attend summer school. She surveys 40 current students discovering that 15 will return for summer school.At 90% confidence, compute the margin of error for the estimation of this proportion. b) A university planner wants to determine the proportion of spring semester students who will attend summer school. She surveys 36 current students discovering that 16 will return for summer school.At 90% confidence, compute the lower...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT