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Question 124). A powder diet is tested on 49 people, and a liquid diet is tested...

  1. Question 124). A powder diet is tested on 49 people, and a liquid diet is tested on 36 different people. The population standard deviations are two pounds and three pounds, respectively. Of interest is whether the liquid diet yields a higher mean weight loss than the powder diet. Conduct a hypothesis test to determine if there is a difference in these two diets
  1. (Question 13) Lesley E. Tan investigated the relationship between left-handedness vs. right-handedness and motor competence in preschool children. Random samples of 41 left-handed preschool children and 41 right-handed preschool children were given several tests of motor skills to determine if there is evidence of a difference between the children based on this experiment. The experiment produced the means and standard deviations shown Table 10.36. Conduct a hypothesis test to determine if there is a difference in motor competence

Left-handed Right-handed

Sample size                                        41                    41

Sample mean                                     97.5                 98.1

Sample St. Dev.                                 17.5                 19.2

Math   Statistics-And-Probability   
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