Question

A research study was conducted to examine the differences between older and younger adults on perceived life satisfaction. A pilot study was conducted to examine this hypothesis. 10 older adults (over the age of 70) and 8 younger adults (between 20 and 30) were give a life satisfaction test (known to have high reliability and validity). Scores on the measure range from 0 to 60 with high scores indicative of high life satisfaction; low scores indicative of low life satisfaction. The data are presented below: Older Adults Younger Adults 45 38 52 48 25 39 51 46 34 15 27 37 24 19 26 46 Mi 44.5 S12-75.39 M2 25.5 s22 -53.43 3.) What is the null hypothesis? (1 point) 4.) What is the research hypothesis? (1 point)

Answer 1

3) null hypoyhesis: H_o: there will be no significant difference for the factor of life satisfaction among younger and older adults

(null hypothesis is a non directional hypothesis)

4) older adults will have higher life satisfaction that younger adults

5)  t = 4.9387
  df = 16
  standard error of difference = 3.847

p=0.0001

the results indicate that there is significant difference between older and younger adults for the factor life satisfaction ( t (16)= 4.93, p <0.01). thus the null hypothesis stating that there is no significant difference for the factor of life satisfaction among younger and older adults is rejected