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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Answer from A to C Also, please use the Statistical tables provided
Do police officers who scored well on an aptitude test make better police officers? Use the following crosstabulation to do a chi-square test, and also calculate Gamma. What do the results tell us about the ability of the test to predict successful policing? Officer Aptitude Test Scores Officer Effectiveness Rating Low Medium High Totals Low 12 6 7 25 Moderate 9 11 9 29 High 5 9 10 24 Totals 26 26 26 78
Determine whether the given description corresponds to an observational study or an experiment. In a study of 366 women with a particular disease, the subjects were monitored with an EEG while asleep. Does the given description correspond to an observational study or an experiment?
Indicate for each which type of t test is appropriate (independent, dependent). An educator would like to assess the effectiveness of a new instructional program for reading. The control group consist of n= 4 second grade students who are provided with the traditional instruction used at school. Later these students are given the experimental instruction and measured again on reading.
Kindergarten students were participants in a study investigating fine motor skills of 37 children. The children had their fine motor skills measured before the study (a combination of hand use, eye-hand coordination, and manual dexterity) and again after undergoing 7 months of occupational therapy. With the instrument used, high scores indicated stronger fine motor skills. Summary statistics are given below: Difference n Sample Diff Std. Err. Min Max d = Pre - Post 37 -7.8109 2.0715 -36 9 Determine what positive and negative differences mean regarding a student's fine motor skills. Pay attention to the order of subtraction in the output. A positive difference means the Select an answer post-test pre-test score was greater than the Select an answer post-test pre-test , implying fine motor skills were Select an answer weakened strengthened over the 7 months. A negative difference means the Select an answer post-test pre-test score was greater than the Select an answer…
The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners at an awards ceremony. The distributions of the ages are approximately bell-shaped. Compare the z-scores for the actors in the following situation. Best actor Best supporting actor u= 41.0 u=55.0 Q= 7.7 Q= 12 In a particular year, the Best Actor was 44 years old and the best supporting actor was 42 years old. Determine the z-scores for each. best actor z=____________ best supporting actor z=___________ Round to two decimal places as needed.
A federal regulatory agency is investigating an advertised claim that a certain device can increase the gasoline mileage of cars (mpg). Ten such devices are purchased and installed in cars belonging to the agency. Gasoline mileage for each of the cars is recorded both before and after installation. The data are recorded here. Car 1 2 3 4 5 6 7 8 9 10 n x s Before (mpg) 19.1 29.9 17.6 20.2 23.5 26.8 21.7 25.7 19.5 28.2 10 23.22 4.25 After (mpg) 25.8 23.7 28.7 25.4 32.8 19.2 29.6 22.3 25.7 20.1 10 25.33 4.25 Change (mpg) 6.7 −6.2 11.1 5.2 9.3 −7.6 7.9 −3.4 6.2 −8.1 10 2.11 7.54 (a) The cars in the study appear to have grossly different mileages before the devices were installed. Use the change data to test whether there has been a significant gain in mileage after the devices were installed. Use ? = .05. H0: ?after ?before Ha: ?after ?before t = p-value
i need this, the t statistic, and p value
SPSS Output? What would the APA Writeup be?
The president of a school club would like to purchase T-shirts for members of the club and asks members which size they would like to order. The results are shown in the histogram below. T-Shirt Sizes 24 22 20 18 16 14 Small Medium Large Extra Large Size Which of the following is a true statement regarding the information shown in the histogram? O T-shirt size is a discrete quantitative variable. O T-shirt size is a continuous quantitative variable. O Frequency of each size is a discrete quantitative variable. O T-shirt size is a categorical variable. kouanbes
The following data shows the performance of 100 subjects on manual dexterity task. The higher the score the better the performance. What score is at 80th percentile? Cumulative frequency Intervals 0-4 5-9 10-14 15-19 20-24 25-29 Frequency 20 15 31 22 10 2 20 35 66 88 98 100

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