group of 44 people were randomized into two equal-sized groups (22 in each). The treatment group ate lunch while playing a video game, and the control group ate lunch without any added distractions. Everyone was asked to recall the food items they ate. The average (or mean)number of items recalled by people in the treatment (gaming) group was 4.9, with a standard deviation of 1.8. The average (or mean) number of items recalled by people in the control (no- distraction) group was 6.1, with a standard deviation of 1.8. Do these data provide strong evidence that the average number of food items recalled by the patients in the treatment and control groups are different? (Since it’s inference for the difference of two means, conduct a t-test.) Assume the conditions for inference are satisified.

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A group of 44 people were randomized into two equal-sized groups (22 in each). The treatment group ate lunch while playing a video game, and the control group ate lunch without any added distractions. Everyone was asked to recall the food items they ate. The average (or mean)number of items recalled by people in the treatment (gaming) group was 4.9, with a standard deviation of 1.8. The average (or mean) number of items recalled by people in the control (no- distraction) group was 6.1, with a standard deviation of 1.8. Do these data provide strong evidence that the average number of food items recalled by the patients in the treatment and control groups are different? (Since it’s inference for the difference of two means, conduct a t-test.) Assume the conditions for inference are satisified.

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