Gaming and distracted eating: A group of researchers are interested in the possible effects of distracting stimuli during eating, such as an increase or decrease in the amount of food consumption. To test this hypothesis, they monitored food intake for a group of 44 patients who were randomized into two equal groups. The treatment group ate lunch while playing solitaire, and the control group ate lunch without any added distractions. Patients in the treatment group ate an average of 52.1 grams of biscuits, with a standard deviation of 45.1 grams, and patients in the control group ate an average of 27.1 grams of biscuits, with a standard deviation of 26.4 grams. Do these data provide convincing evidence that the average food intake (measured in grams of biscuits consumed) is different for the patients in the treatment group? Assume that conditions for inference are satisfied.

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Gaming and distracted eating: A group of researchers are interested in the possible effects of distracting
stimuli during eating, such as an increase or decrease in the amount of food consumption. To test this
hypothesis, they monitored food intake for a group of 44 patients who were randomized into two equal
groups. The treatment group ate lunch while playing solitaire, and the control group ate lunch without any
added distractions. Patients in the treatment group ate an average of 52.1 grams of biscuits, with a
standard deviation of 45.1 grams, and patients in the control group ate an average of 27.1 grams of
biscuits, with a standard deviation of 26.4 grams. Do these data provide convincing evidence that the
average food intake (measured in grams of biscuits consumed) is different for the patients in the treatment
group? Assume that conditions for inference are satisfied.
What are the hypotheses for this test?
O Ho: Pno distraction = Pdistraction
Ha: Pno distraction Pdistraction
<
O Ho: Pno distraction = Pdistraction
Ha: Hno distraction
Hdistraction
O Ho: Pno distraction = Pdistraction
Ha: Pno distraction * Pdistraction
The test statistic for the hypothesis test is:
(please round to two decimal places)
The p-value for the hypothesis test is:
(please round to three decimal places)
State whether or not the null hypothesis should be rejected and interpret the result of the hypothesis test
in the context of the study:
Transcribed Image Text:Gaming and distracted eating: A group of researchers are interested in the possible effects of distracting stimuli during eating, such as an increase or decrease in the amount of food consumption. To test this hypothesis, they monitored food intake for a group of 44 patients who were randomized into two equal groups. The treatment group ate lunch while playing solitaire, and the control group ate lunch without any added distractions. Patients in the treatment group ate an average of 52.1 grams of biscuits, with a standard deviation of 45.1 grams, and patients in the control group ate an average of 27.1 grams of biscuits, with a standard deviation of 26.4 grams. Do these data provide convincing evidence that the average food intake (measured in grams of biscuits consumed) is different for the patients in the treatment group? Assume that conditions for inference are satisfied. What are the hypotheses for this test? O Ho: Pno distraction = Pdistraction Ha: Pno distraction Pdistraction < O Ho: Pno distraction = Pdistraction Ha: Hno distraction Hdistraction O Ho: Pno distraction = Pdistraction Ha: Pno distraction * Pdistraction The test statistic for the hypothesis test is: (please round to two decimal places) The p-value for the hypothesis test is: (please round to three decimal places) State whether or not the null hypothesis should be rejected and interpret the result of the hypothesis test in the context of the study:
Expert Solution
Step 1

Let μno distraction denote the control group ate lunch without any added distraction, and μdistraction denote the treatment group ate lunch while playing solitaire. The test is that the average food intake is different for the patients in the treatment group. The hypothesis is,

Null hypothesis:

H0:μno distraction=μdistraction

Alternative hypothesis:

Ha:μno distractionμdistraction

The pooled variance is,

sp2=n1-1s12+n2-1s22n1+n2-2=22-126.42+22-145.1222+22-2=57350.3742=1,365.485

The pooled variance is 1,365.485.

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