Question

In: Statistics and Probability

5.35 Gaming and distracted eating, Part I: A group of researchers are interested in the possible...

5.35 Gaming and distracted eating, Part I: 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 52.1 grams of biscuits, with a standard deviation of 45.1 grams, and patients in the control group ate 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 amount 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?

  • Ho: μno distraction = μdistraction
    Ha: μno distraction > μdistraction
  • Ho: μno distraction = μdistraction
    Ha: μno distraction ≠ μdistraction
  • Ho: μno distraction = μdistraction
    Ha: μno distraction < μdistraction


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 four decimal places)
Interpret the result of the hypothesis test in the context of the study:

  • Since p < α we have enough evidence to reject the idea that the average biscuit consumption in the two groups was the same, and accept the alternative that distracted eaters will eat more than non-distracted eaters, on average
  • Since p < α we have enough evidence to accept the idea that the average biscuit consumption in the two groups was the same
  • Since p < α we have enough evidence to reject the idea that the average biscuit consumption in the two groups was the same, and accept the alternative that distracted eaters will eat a different amount than non-distracted eaters, on average
  • Since p < α we do not have enough evidence to reject the idea that the average biscuit consumption in the two groups was the same

Solutions

Expert Solution



Related Solutions

5.35 Gaming and distracted eating, Part I: A group of researchers are interested in the possible...
5.35 Gaming and distracted eating, Part I: 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 52.1...
A group of researchers is interested in middle school students and their willingness to appear to...
A group of researchers is interested in middle school students and their willingness to appear to stand out. A random sample of 260 middle school students is gathered, and the researchers ask them to wear bright orange shoes to school for a day. In the sample of 260 students, 192 were willing to wear the bright orange shoes. Estimate the overall proportion of middle school students that would be willing to wear bright orange shoes to school for the day....
A group of researchers is interested in studying the factors that influence juvenile delinquency. They create...
A group of researchers is interested in studying the factors that influence juvenile delinquency. They create a survey for high school students in a local after-school program. The survey includes questions about age (in years), favorite sports, number of siblings, high school grade point average and the marital status of parents. List the variables in the survey and the level of measurement for each variable.
consider the following research situation: A group of researchers is interested in study the effects of...
consider the following research situation: A group of researchers is interested in study the effects of caffeine on memory. They plan to use a sample of 25 adults, with the intention of generalizing the findings to the larger population. One of the researchers is concerned, however, because their sample appears to differ from the population in regards to a characteristic that he believes could hinder the generalization of the caffeine and memory study results. This characteristic is cortisol level. A...
PART I Researchers in the corporate office of an airline wonder if there is a significant...
PART I Researchers in the corporate office of an airline wonder if there is a significant difference between the cost of a flight on Priceline.com vs. the airline's own website. A random sample of 16 flights were tracked on Priceline and the airline's website and the average difference between the vendors was $4.251 with a standard deviation of $9.2763. The 99% confidence paired-t interval for price (Priceline - Airline Site) was (-2.5826, 11.0846). Which of the following is the appropriate...
Describe possible treatments used for eating disorders
Describe possible treatments used for eating disorders
2) I don’t like eating over-ripe bananas, and am interested in understanding the factors that influence...
2) I don’t like eating over-ripe bananas, and am interested in understanding the factors that influence the ripening time of bananas after I bring them home from the store (which I define as the time until a brown spot appears). I decide to conduct an experiment. Every Sunday for 8 weeks, I buy a bunch of 6 green/yellow bananas, and record the time until the first brown spot appears on each banana (so that I end up with 48 measurements...
Correctional services were interested in further evaluating a cognitive-behavioural based intervention. The same group of researchers...
Correctional services were interested in further evaluating a cognitive-behavioural based intervention. The same group of researchers randomly assigned 15 offenders into a low intensity, medium intensity, or high intensity intervention program. The researchers then gathered data on the number of violent incidents perpetrated by offenders over the five years after their release. They were interested in whether the intensity of the intervention program had any effect on the outcome. Low:9 8 5 8 7 Medium: 6 6 5 7 8...
Researchers are interested in the effectiveness of methadone in patients with chronic pain syndromes. The researchers...
Researchers are interested in the effectiveness of methadone in patients with chronic pain syndromes. The researchers used a scale (0-100, higher numbers indicate higher pain) for maximum pain intensity over the course of the day. Each subject took a 20mg dose of methadone for 5 days, and then took a placebo for 5 days. The following table gives the mean maximum pain intensity scores for the 5 days on methadone and the 5 days on placebo. Do these data provide...
what are the possible symptoms, causes, and types of eating disorders?
what are the possible symptoms, causes, and types of eating disorders?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT