Walking to improve health. In a study investigating a link between walking and improved health (Social Science & Medicine, Apr. 2014), researchers reported that adults walked an average of 5.5 days in the past month for the purpose of health or recreation. However, it may be the case that the true average number of days in the past month that adults walked for the purpose of health or recreation is lower than 5.5 days. (a) State the Null and Alternative hypotheses for this Hypothesis Test. (b) State the type of Test and the Level of significance given = 0.1. (c) Determine the Decision Rule