1. Write the null and alternative hypotheses for each of the following examples. Determine if each is a case of a two-ta
Posted: Sun Sep 05, 2021 5:20 pm
question of whether the presence of plants in an office might lead to fewer sick days. Current average sick days is 3 days per month. d. In an average week, how many hours of TV/movies/online “stuff", etc. do students watch? Is it different than 10 hours? e. Suppose a businessperson wishes to open a store in a local shopping center only if there is strong evidence that the average number of people in the center is greater than 5000 per day.
1. Write the null and alternative hypotheses for each of the following examples. Determine if each is a case of a two-tailed, a left-tailed, or a right-tailed test. [2x5=10] a. Working on an average at least 5 hours per day at a computer contributes to deterioration of eyesight. b. It is thought that 12% of all students taking a particular course received a grade of A. In a sample of 155 students, it is found that 21 made an A. c. A statistical study considers the