According to the Centers for Disease Control and Prevention (CDC), the mean BMI of U.S. men of age 40-49 years old is 28.4 . Using the provided sample data file, conduct a one-sample - test of a mean to test whether the mean BMI of men of age 40-49 years old who smoke daily is lower than 28.4 . Conduct the - test at a significance level of =0.025 to test the null hypothesis, 0:=28.4 , against the alternative hypothesis, 1:<28.4 , where represents the mean BMI of U.S. men of age 40-49 who smoke daily. Assume that the population standard deviation of BMI, , is 8.346 . The sample data provided contain BMI results collected from a 2015 survey conducted by the National Center for Health Statistics for men of age 40-49 who smoke daily