Question

In: Statistics and Probability

The Schiffert Health Center at Virginia Tech wants to see whether putting antibacterial soap in the...

The Schiffert Health Center at Virginia Tech wants to see whether putting antibacterial soap in the dormitory bathrooms will reduce the number of visits to the infirmary. VT has 47 on-campus residence halls. They are home for 9300 students. Twenty residence halls have been randomly selected. In all 2,000 students spanning over all selected halls. Half of the dormitories are chosen at random and supplied with the special soap; the remaining ones were supplied with regular soap. At the end of the semester, the two types of soap are compared using the number of visits to the infirmary per person per semester.

  1. After the data are analyzed, can we generalize our results to the 47 dormitories (population) and why?

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

The Schiffert Health Center at Virginia Tech wants to see whether putting antibacterial soap in the...
The Schiffert Health Center at Virginia Tech wants to see whether putting antibacterial soap in the dormitory bathrooms will reduce the number of visits to the infirmary. VT has 47 on-campus residence halls. They are home for 9300 students. Twenty residence halls have been randomly selected. In all 2,000 students spanning over all selected halls. Half of the dormitories are chosen at random and supplied with the special soap; the remaining ones were supplied with regular soap. At the end...
A health tech company is interested in investigating whether there is a gender bias in the...
A health tech company is interested in investigating whether there is a gender bias in the workplace. Specifically, they collect information about how many female and male employees work at the company in following positions: entry-level, mid-level management (referred as mid-level) and high-level management (referred as high-level). They are asking for your help to find out if gender and job position are independent from each other or if there is a relationship between these factors indicating a gender bias. Table...
The Center for the Display of Visual Arts wants to know whether its parking situation is...
The Center for the Display of Visual Arts wants to know whether its parking situation is getting worse. Specifically, administrators are concerned that a lack of parking is driving away potential visitors. The administrators plan to address the situation if at least 15% of visitors feel that finding parking near the facility is a problem (the center averages about 3,100 visitors per week). To get a sense of whether this is really the case, the administrators distribute a brief exit...
A physician wants to see whether there is an association between body mass index and diabetic...
A physician wants to see whether there is an association between body mass index and diabetic status among her patients, so for one day she records the body mass index and the diabetic status of all patients who see her. She sees 15 patients without diabetes, whose body mass indices are 20.4, 22.1, 22.8, 23.8, 24.2, 25.0, 25.4, 25.9, 26.3, 27.8, 28.6, 30.2, 31.6, 34.1, 37.4. And she sees 10 patients with diabetes or pre-diabetes, whose body mass indices are...
A physician wants to perform a study at a local health center where 250 individuals have...
A physician wants to perform a study at a local health center where 250 individuals have stress issues. The purpose of the study would be to determine if doing yoga for 30 minutes helps with improving stress levels compared to sleeping for 30 minutes. Part A: Describe an appropriate design for the study. (5 points) Part B: The hypotheses for this study are as follows: H0: There is no difference in the mean improvement of stress levels for either treatment....
A physician wants to perform a study at a local health center where 250 individuals have...
A physician wants to perform a study at a local health center where 250 individuals have stress issues. The purpose of the study would be to determine if doing yoga for 30 minutes helps with improving stress levels compared to sleeping for 30 minutes. Part B: The hypotheses for this study are as follows: H0: There is no difference in the mean improvement of stress levels for either treatment. Ha: The mean improvement of stress levels is greater for the...
A public health researcher wants to know whether a new tax that was placed on soda...
A public health researcher wants to know whether a new tax that was placed on soda has had any impact on consumer behavior (whether people continued to buy soda). Before the new tax, convenience stores in the city sold an average of µ = 410, sugar filled beverages per day with σ = 60. The distribution was normal. Following the new tax, data were collected for a sample of n = 9 days and the new mean was M =...
Cost Estimation: Anna Marinez, manager of the Dos Coyotes restaurant, wants to see whether her new...
Cost Estimation: Anna Marinez, manager of the Dos Coyotes restaurant, wants to see whether her new advertising campaign is working to increase sales. She obtained the following data for the last nine months. Month Revenues Advertising apr $200,000 $52,000 may $270,000 $65,000 jun $320,000 $80,000 jul $480,000 $90,000 aug $430,000 $100,000 sep $450,000 $110,000 oct $540,000 $120,000 nov $670,000 $180,000 dec $751,000 $197,000 total $4,111,000 $994,000 1-What is the incremental revenue per dollar of advertising? 2-What is revenue in the...
a) Testing to see whether taking vitamin supplements each day has significant health benefits. There are...
a) Testing to see whether taking vitamin supplements each day has significant health benefits. There are no (known) harmful side effects of the supplements. Making a type I error means                            [ Select ]                       ["Taking only vitamins which labeled FDA approves", "There is no significant health benefits taking vitamin supplements each day, when actually they do have significant health benefits", "Taking vitamin supplements each day has...
An insurance company wants to know what whether perceptions of personal health are independent of gender.
An insurance company wants to know what whether perceptions of personal health are independent of gender. The company has hired you as a statistical consultant. You then collected a random sample of people and asked about their perceived health status. Based on the results of this survey, is the sex of the respondent independent from their perceived health status? Use 95% confidence.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT