Question

In: Statistics and Probability

Activity 3: Which procedure? For each question, determine which inference procedure is appropriate (perform hypothesis test...

Activity 3: Which procedure?
For each question, determine which inference procedure is appropriate (perform hypothesis test or construct a confidence interval), and identify the parameter of interest (p, p1 – p2, µ, µ1 – µ2, µd).
What percentage of college students engage in underage drinking in their freshman year?

Test or Interval Parameter


What is the average change in a person’s heart rate when comparing measurements from before and after a scary scene in a horror film?

Test or Interval Parameter


What is the average number of siblings of all Penn State students?

Test or Interval Parameter


Is there a difference in the percent of college freshman and college sophomores who engage in underage drinking?
Test or Interval Parameter

On average, are college graduates exiting school with a GPA above 3.0?

Test or Interval Parameter


Is the percent of sophomores living on campus at Penn State different than 30%?
Test or Interval Parameter

Is there a difference in the percentage of season games of their favorite sport a fan attends based on if their favorite sport is baseball or basketball?

Test or Interval Parameter

Solutions

Expert Solution

What percentage of college students engage in underage drinking in their freshman year?

Inference Procedure: Interval

Parameter of interest: p


What is the average change in a person’s heart rate when comparing measurements from before and after a scary scene in a horror film?

Inference Procedure: Interval

Parameter of interest: µd


What is the average number of siblings of all Penn State students?

Inference Procedure: Interval

Parameter of interest: µ


Is there a difference in the percent of college freshman and college sophomores who engage in underage drinking?
Inference Procedure: Test

Parameter of interest: p1 – p2

On average, are college graduates exiting school with a GPA above 3.0?

Inference Procedure: Test

Parameter of interest: µ


Is the percent of sophomores living on campus at Penn State different than 30%?
Inference Procedure: Test

Parameter of interest: p

Is there a difference in the percentage of season games of their favourite sport a fan attends based on if their favourite sport is baseball or basketball?

Inference Procedure: Test

Parameter of interest: p1 – p2

orchestra answered 1 year ago
Next > < Previous

Related Solutions

7. Perform an appropriate hypothesis test to determine if there is a significant relationship between a...
7. Perform an appropriate hypothesis test to determine if there is a significant relationship between a student’s race and the punishment received for talking back to teachers in a school district. Be sure to list all your steps and interpret your findings in no more than two sentences. In School Suspension Out of School Suspension Intermediate Punishment African-American/Black 19 52 9 Hispanic/Latino 14 39 7 White 9 12 24
In each of the following exercises, formulate an appropriate null hypothesis and perform a test of...
In each of the following exercises, formulate an appropriate null hypothesis and perform a test of that null hypothesis at the 5% and 1% significance levels. Use a one-sided or two-sided test as appropriate. 10. An instructor administers a 2-minute sit-up test to a class of 10 students, obtaining the following scores. X : 55,45,48,62,58,60,42,44,53,55 The instructor expects students to have an average score of no more than 45 on the sit-up test. Part (a) Assume that 10 is the...
Perform the appropriate statistical procedure to determine if there is a difference in the amount of...
Perform the appropriate statistical procedure to determine if there is a difference in the amount of caffeine consumed based on level of stress and gender. Gender   CoffeeConsumption Stress 1 5 1 1 6 3 2 7 3 1 7 2 1 5 3 1 6 1 1 8 2 1 8 2 2 9 1 2 8 1 2 9 1 2 7 2 2 4 1 2 3 1 1 0 1 2 4 2 1 5 1 2...
Perform the appropriate Hypothesis Test for the following (Be sure to have a null hypothesis (H0)...
Perform the appropriate Hypothesis Test for the following (Be sure to have a null hypothesis (H0) and alternate hypothesis; (H1). Explain how to find test statistic and P-value on the calculator; also Interpret the results (i.e. Reject or Fail to Reject H0), (Is or Is not significant evidence to support the claim H1). You want to see if all three college algebra classes have the same mean. Use the following data to test your claim at a .01 significance level....
Question # 3 Perform the following hypothesis test on the paired data below: HO: µd =...
Question # 3 Perform the following hypothesis test on the paired data below: HO: µd = 0 (Please recall that µd is read ~ and also known as ~ Mu-sub-d) HA: µd ≠ 0 Test at α = 0.05 Before 30 75 92 69 61 57 57 89 92 After 53 68 98 62 67 71 68 96 98 a) Is this an upper tail, lower tail, or two-tail test? (5 points) b) Are we testing means or proportions? (5...
You are advised to perform the appropriate hypothesis test using pencil and paper, along with a...
You are advised to perform the appropriate hypothesis test using pencil and paper, along with a calculator and statistical tables, and then use your working to answer the questions below. It is claimed that on-line shopping can lead to considerable savings in some areas. One magazine claims that purchasing a personal computer (PC) from an on-line company results on average in savings of at least $750. A consumer group wished to test whether the claim was exaggerated, and a random...
Perform the appropriate hypothesis test for the problem. State the hypotheses, identify the claim, compute the...
Perform the appropriate hypothesis test for the problem. State the hypotheses, identify the claim, compute the test statistic and P-value, make a decision, and write the interpretation in terms of the claim. For consistency, use a significance level of 0.05 for the problem. Two brands of components are compared by installing one of each brand randomly in the right and left sides of several randomly selected machines and noting the total machine operation time (in minutes) until the component needs...
Perform the appropriate hypothesis test for the problem. State the hypotheses, identify the claim, compute the...
Perform the appropriate hypothesis test for the problem. State the hypotheses, identify the claim, compute the test statistic and P-value, make a decision, and write the interpretation in terms of the claim. For consistency, use a significance level of 0.05 for the problem. Two brands of components are installed in a random sample of machines and the total machine operation time (in minutes) until the component needs to be replaced is recorded. Can you conclude that Brand 1 has a...
consider which step of the hypothesis test procedure makes a decision on the statistical hypothesis and...
consider which step of the hypothesis test procedure makes a decision on the statistical hypothesis and which step determines the substantive nature of the results of the hypothesis test?
Conduct a hypothesis test. Perform each of the following steps: a) state the hypothesis and identify...
Conduct a hypothesis test. Perform each of the following steps: a) state the hypothesis and identify the claim b) Find the critical value(s) c) Compute the test value d) make the decision e) Summarize the results It has been found that the average time users spend online per week is 18.3 hours. A random sample of 48 teenagers indicated that their mean amount of Internet time per week was 19.5 hours with a population standard deviation of 5.7. At the...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT