7. For each of the following, indicate the appropriate hypothesis test (one-sample z-test,one-sample t-test, independent-measures t-test, or dependent-measures t-test). If yourresponse is dependent-measures t-test, indicate the "flavor" of the dependentmeasures t-test.b. A study testing whether night-shift workers sleep the recommended 8 hours perdayA researcher examines the effect of relaxation training on test anxiety. Onesample of subjects receives relaxation training for three weeks. A second sampleserves as a control group and does not receive the treatment. The researcherthen measures anxiety levels for both groups in the test taking situation.C.

7. b. The study is conducted to test whether night-shift workers sleep recommended 8 hours per day…

7. For each of the following, indicate the appropriate hypothesis test (one-sample z-test, one-sample t-test, independent-measures t-test, or dependent-measures t-test). If your response is dependent-measures t-test, indicate the “flavor" of the dependent measures t-test. b. A study testing whether night-shift workers sleep the recommended 8 hours per day c. A researcher examines the effect of relaxation training on test anxiety. One sample of subjects receives relaxation training for three weeks. A second sample serves as a control group and does not receive the treatment. The researcher then measures anxiety levels for both groups in the test taking situation.

7. For each of the following, indicate the appropriate hypothesis test (one-sample z-test, one-sample t-test, independent-measures t-test, or dependent-measures t-test). If your response is dependent-measures t-test, indicate the “flavor" of the dependent measures t-test. b. A study testing whether night-shift workers sleep the recommended 8 hours per day c. A researcher examines the effect of relaxation training on test anxiety. One sample of subjects receives relaxation training for three weeks. A second sample serves as a control group and does not receive the treatment. The researcher then measures anxiety levels for both groups in the test taking situation.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Given that the P-value for the hypothesis test is 0.000 when rounded to three decimal places, what do you conclude? What do the results indicate about the rule that women and children should be the first to be saved?
develop a research question that can be addressed with the dependent-samples t test, making sure to state the null and alternative hypotheses (in words)
A group of n = 8 students wants to know if the commuting time from home to college by bus is less than the commuting time by car. For this, each of them recorded the time spent using each means of transport. Recorded travel times are shown below. Each pair of values refers to a student, the first value being the time spent by car and the second by bus (both in minutes). Proceed with a hypothesis test appropriate to the significance level α=6%. studen 1 2 3 4 5 6 7 8 Car 15 20 20 20 17 15 10 18 bus 10 22 15 20 12 10 12 10 Difference 5 -2 5 0 5 5 -2 8 a. What range of values is the p-value in?b. There is evidence to reject H0 with the level of significance adopted?
1.Respond to the following questions in accordance with characteristics of hypothesis testing. a.If you want to see if the average gestational length among African American women is different from the national average of 39 weeks, how would you set up the null and two-sided alternative hypotheses? b.If you want to see if the average gestational length among African American women is less than the national average of 39 weeks, how would you set up the null and one-sided alternative hypotheses? c.In other words, what is a P-value? d.If α is 0.10 and you find a P-value of 0.08 in your hypothesis test, what would you conclude? e.How do you calculate the standard error of ?̅?
When is a researcher at risk of making a type 2 error? whenever H0 is rejected whenever H1 is rejected whenever H0 fails to reject the risk of a type 2 is independent of the decision from a hypothesis test
The following are the hypotheses for a test of the claim that college graduation statue and cola preference are independent. H0: College graduation status and cola preference are independent. H1: College graduation status and cola preference are dependent. If the test statistic is χ2=0.579 and the critical value is χ2=5.991, what is your conclusion about the null hypothesis and about the claim? A. Fail to reject the null hypothesis. There is sufficient evidence to warrant rejection of the claim that college graduation status and cola preference are independent. B. Reject the null hypothesis. There is not sufficient evidence to warrant rejection of the claim that college graduation status and cola preference are independent. C. Fail to reject the null hypothesis. There is not sufficient evidence to warrant rejection of the claim that college graduation status and cola preference are independent. D. Reject the null hypothesis. There is sufficient…
If you use a 0.05 level of significance in a two-tail hypothesis test, what decision will you make if ZSTAT=+1.55?
you have been hired by the San Antonio Spurs to analyze the 2005-2006 season. For each of the 33-36 games, you will need to analyze the following three variables for EACH team: DRB - Number of Defensive Rebounds ORB – Number of Offensive Rebounds 3P – 3 point Field Goals Made Spurs- DRB- 2548 ORB- 851 3P- 524 Opponent - DRB- 2417 ORB- 886 3P- 886 1. Create a Null Hypothesis and Alternative Hypothesis based on the data above. The Hypothesis must be in written form and formula form. 2. Show the Cluster sample in Excel and explain how the data was collected and the data must represent a sample. The sample sizes must be greater than 33-36 games. 3. using Excel, A list of the summary statistics and an interpretation of each and includes the 1) Mean, 2) Variance, 3) Standard Deviation, and two statistical graphs/charts learned in the course including a Scatter Plot (i.e... Histogram, Line, etc. Emphasize…
Members of the Town of Colonie Golfers’ Loop frequently raise concerns to Mr. Lange, as its leader, about how the league is run. The most frequent concern raised is that the teams competing each week are not statistically even. In other words, members raise concerns that one or more teams have a statistical advantage over other teams. To evaluate the validity of these claims, Mr. Lange has decided to use a mix of statistical hypothesis tests discussed in this course to evaluate the teams from Outing #14 in calendar-year 2016 (2016, #14). One is the Equal Vari- ances F Test, one is Welch’s T Test, and the other is the 2-Sample T Test for Equal Means. In this particular outing, seven teams were competing for the win. A random sample of eight prior scores from each team member was collected, and the summary statistics are shown below (correct to three decimal places). team sample size sample mean sample variance 1 24 76.500 14.522 2 32 79.656 18.233…
If the level of significance in a hypothesis test is 1 %, what would the p-value have to be for failing to reject the null hypothesis? a. equal to 0.005 b. less than .01 c. greater than .01
Assume that 40% of students at SCC receive A or B’s, 35% receive C’s, and 25% receive D or F’s. A survey of 300 r/s UC Davis students indicates that 100 of them received A or B’s, 130 received C’s, and 70 received D or F’s. Do these results provide strong evidence that the overall percentages of the 3 grade categories at UC Davis are not all the same as the ones at SCC? Perform a hypothesis test and use a p-value to draw and explain your conclusion.(a) Use an appropriate formula to calculate the expected counts.(b) Use an appropriate formula to calculate the test statistic.(c)Use an appropriate table to estimate the p-value. Do not draw any conclusion
Include all 8 steps of Hypothesis Testing for each of the following problems 7. A researcher wanted to determine if soda preference was related to occupation. So, she polled 150 people and asked them their occupation and which soda they preferred. The data are below. Conduct an appropriate statistical test using an alpha level of .05. Vernor’s Coke Pepsi 7-up Teacher 10 20 20 10 Lawyer 10 20 15 5 Physician 10 10 10 10