1
1
6.2.17-t
question
in a random sample of 23 people, the mean commute time to work was 32.2 minutes and the standard deviation
distributed and use a t-distribution to construct a 95% confidence interval for
ns
minutes. assume the population is normally
of error of ? interpret the results.
e
the confidence interval for the population mean is
(round to one decimal place as needed.)

Which expression is rational? 6. , square root two, square root 14, square root 49

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?