Question

Directions: Answer each question to the best of your ability. Please show all work (including the 7 steps of
Hypothesis Test) and round decimals to the nearest ten-thousandths.

4. To test the effectiveness of protective packaging, Amazon shipped out 1500 orders in regular light
packaging and 1800 orders in heavy-duty packaging. Of the orders shipped in light packaging, 25
arrived in damaged condition, while of the orders shipped in heavy-duty packaging, 20 arrived in
damaged condition. Can you conclude that heavy-duty packaging reduces the proportion of damaged
shipments?

Answer 1