Ten men were selected to test an exercise device by using it 4 times per week for 30 minutes. Theirresting pulse rates (beats per minute) were measured before the test began, and then again after 6weeks. Assume the differences are approximately normally distributed. At significance level a-05.is there sufficient evidence to conclude that exercising in this way can reduce resting pulse rates?SubjectBeforeAfterAllen7373Brandon8379Carlos8581David8786Erwin9186Frank9891George8784Hans8583van8384James79761.) State the hypotheses. Enter ,. or "not equal" forHo paH pa2.) Test Statistic(Round to two decimal places)3.) P-value(Round to four decimal places)4) State the decision about the null hypothesis. (Type Reject or Fail to Reject in theanswer box)5) Theresulficient evidence that exercising in this way can reduceresting pulse rates (Type be Sntinto the aoswer bod

There are two dependent samples which are before and after the exercise device. We have to test…

Answered: Ten men were selected to test an…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A researcher asked a group of 11 children to report on a 7-point Likert scale how sociable they feel first thing in the morning (low scores indicate not very sociable, high score indicate very sociable). The data in the frequency table below were obtained. The means is: Score 7 1 1 4 2 3 2 2. 1. N = 11 O 1.00 O 1.57 O 4.00 O 2.00 6.
Researchers were interested in assessing whether stress levels are different at the beginning of the semester compared to finals week. To test this, stress was measured in 5 students at the start of the semester and then again at the end of the semester during finals week. Participant Stress 1 Stress 2 1 22 22 2 32 34 3 24 25 4 28 30 5 26 29 Then H0: μ2 - μ1 ≠ 0, true or false?
* QuestiorI CompletiUIT Status! 1D 40 50 70 80 100 11D 120 13 140 150 16 17 18 19 20 21 220 23 24 25 QUESTION 23 For 6 months we worked with a group of 15 severely mentally handicapped individuals in an attempt to teach them self-care through imitation. For a second 6- month period, we used physically guided practice with the same individuals. For each 6-month session, we collected ratings on the level of required assistance (high = bad) for each person. The data for each individual follows (on the next page). Was the assistance significantly reduced in the second 6-month period? (use alpha=0.05) Subject # 4 6. 8. 9. 10 11 12 13 14 15 Imitation 14 11 19 8. 4 9. 12 14 17 18 8. 6. 10 13 15 3 6. 9. 16 10 13 6. Physical guidance Given your the obtained statistic that you calculated, if you were conducting a hypothesis test on this scenario, what would Step 4 and 5 look like? Since tobt = -2.23 tcrit = -1.761 then we would fail to reject the Null and conclude that the amount of assistance…
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Martha believes that a relaxation technique involving visualization will help people with mild insomnia fall asleep faster. She randomly selects a sample of 20 participants from a group of mild insomnia patients and randomly assigns 10 to receive visualization therapy. The other 10 participants receive no treatment. Each participant then is measured how long (in minutes) it takes him or her to fall asleep. Data: No Visualization treatment Treatment 22 19 18 17 27 24 20 21 23 27 26 21 22 23 24 18 27 19 22 22 2.
A random sample of 10 young men was taken and the heart rate (HR) of each young man was measured before and after taking a cup of caffeinated coffee. The results are (beats/min.) Use the information in the table to answer the questions.Subject HR before HR after1 68 74 2 64 68 3 52 60 4 76 72 5 78 76 6 62 68 7 66 72 8 76 76 9 78 8010 60 64a) Does caffeinated coffee have any effect on the heart rate of young men? Let level α = 0.05.b) As a public health specialist, write a brief report explaining your results above
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