complete solutions graded A+
T vs. Z distribution - correct answer ✔✔- t:
~has slightly greater distribution
~less area near the center and more in the tails
~As degrees of freedom increase t approaches the Z
Factors - correct answer ✔✔Color, placement
Factor levels - correct answer ✔✔- blue, yellow, green
- front, back
Treatments - correct answer ✔✔Blue/front, blue/back, yellow/front, yellow/back,
green/front, green/back
Response variable - correct answer ✔✔Number of coupons redeemed