For number 16-20: A research study was conducted toexamine the differences between older and younger adultson perceived life satisfaction. A pilot study was conducted.to examine this hypothesis. Group 1 with ten older adults(over the age of 70) and Group 2 with ten younger adults(between 20 and 30) were give a life satisfaction test.Scores on the measure range from 0 to 60 with high scoresindicative of high life satisfaction; low scores indicative oflow life satisfaction. The SPSS result of the data ispresented below.LifeSatisfactiont-test for Equality of MeansSig. (2- Meandf tailed)0.0043.292 18Equal variancesassumedEqual variances 3.292 18not assumed0.004A. YesB. No18. Is the result significant?A. YesB. NoDifference15.9A. Group 1B. Group 2.17. Is the p-value lesser than α = 0.05?15.916. Based on the values, which group (on the average)have lower life satisfaction?Std. ErrorDifference4.829194.82919C. Cannot be determined19. What is the decision to be made?A. Accept Ho B. Reject Ho20. What is the conclusion to the problem?2008A. There is no significant difference between olderand younger adults on perceived life satisfaction.There is a significant difference between older andyounger adults on perceived life satisfaction.B.

Given Information: Group 1 includes 10 older adults over the age of 70. Group 2 includes 10 younger…

Answered: 16. Based on the values, which have…

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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1. A salesman for home insulation conducted a telephone poll of the first 25 people from his firm's client list. He asked each person this question: Home insulation is one of the best ways to reduce your monthly heating bill. On a scale of 1 to 7, where 1 is unimportant and 7 is extremely important, how important is it to you to have adequate home insulation? All but one responded with a rating of 5 or above. The salesman wrote to his manager that "96% of people in our town think that insulation is very important." Are the survey results valid? Why or why not? (Hint: Discuss sample size, question, sample technique, and survey technique)
7. The lower quartile of 50 students in their final test in Mathematics 10 is 20. Which of the following statements is true? A. Twenty-five percent of the students got a score of less than or equal to 20. B. Seventy-five percent of the students got a score of less than or equal to 20. C. Thirty students got a score of 20. D. Twenty percent of the students got a score of greater than or equal to 20. 8. In a 60-item test, Pinty got a score of 52, which is the 90th percentile. What does it mean? A. She got the highest score. B. Her score is higher than 10 of her classmates. C. 90% of the class did not pass the test. D. She surpassed 90% of her classmates. 9. The 8th decile of a distribution of scores in Mathematics 10 is 45. Which of the following would be the interpretation? A. 20% of the students got a score of less than 45. B. 25% of the students got a score of 45. C. 80% of the students got a score of greater than or equal to 45. D. 80% of the students got a score of less than or…
4. An experimenter studies vision in low light by having participants sit in a darkened room for 5, 15, or 25 minutes and then tests their ability to correctly identify 20 objects. What is te independent variable? Give the levels of the independent varibale - What is the level of measurement of the independent variable? What is the dependent variable? - What is the level of measurement of the dependent variable? - Would you use the values from the independent variable or the dependent variable to create a frequency distribution?
С. 1.74 D. -1.74 14. What type of data would necessitate using a hypothesis test of the population proportion rather than a test of the population mean? A. Ratio B. Interval C. Qualitative D. Quantitative a 4)
TY!
4.2/11
3. In a population of 1.000 students, the number of marrięd students is 400 Out of 300 students who failed. 120 belonged to the married group. Using Yule 's coefficient of association, find out the extent of association hetween the attrihutes marriage and failure.
Select all of the answers below that are equal to G = {Canada, France, Germany, Great Britain, Italy, Japan, United States} Question 4 options: {twister, computer, rusty nail, socks, bananas, sketch pad, flowers} {rug, food, milk, radio, bottle cap, eraser, bread} {United States, Great Britain, France, Germany, Canada, Japan, Italy} {Germany, Canada, Italy, Japan, France} {Germany, Italy, France, Great Britain, United States, Japan, Canada} {United States, Great Britain, France, Germany}
What is Ha? 1. H0 is not true 2. pyounger ≠ polder 3. polder ≠ .45 and pyounger ≠ .55 4. polder ≠ .95 and pyounger ≠ .05 5. pyounger ≠ .95 and polder ≠ .05

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