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Homework answers / question archive / 1)A Weight-loss company is experimenting with a new diet to help its customers quickly lose weight

1)A Weight-loss company is experimenting with a new diet to help its customers quickly lose weight. A sample of 40 customers is put on the diet for a period of 4 weeks at the end of which they determine how much weight (in pounds) they have lost while on the diet. The box plot below illustrates the results. According to the graph, the 10 customers who lost the most weight lost more than ** 20** pounds.

- The complete collection of all entities or cases we are interested in studying is called the sample.
- The website www.checkfacebook.com publishes the statistics on the use of the popular website FACEBOOK.COM. The recent stats for the ten largest countries on Facebook are given below. What is the standard deviation for the variable “number of users” of this data?

- The following table shows the number of Field Goals Made (FGM) and Field Goals Attempted (FGA) for the three top players of the Miami Heat during the 2010-2011 season. What is the standard deviation of FGM of these three players?

- Sue Taylor, Director of Global Industrial Sales, is concerned by a deteriorating sales trend. Specifically, the number of industrial customers is stable at 1,500 but they are purchasing less each year. She orders her staff to search for causes of the downward trend by selecting a focus group of 40 industrial customers. For this study, the set of 40 industrial customers is
________ - High levels of glucose in the blood are indications of diabetes, which is becoming more prevalent in the United States. Diabetes can lead to many complications such as blindness and heart disease. A random sample of 200 individuals had their blood sugar level measured. The box plot below illustrates the results obtained. According to the graph, how many people had glucose levels below 90?
- Above 90?

- The following graph illustrates the distribution of letter grades for a FIU Course in a class of 200 students. Based on this information, how many students had Bs as their letter grade?

- Which of the variables is quantitative?
- A survey records many variables of interest to the researchers conducting the survey. Below are some of the variables from a survey conducted by the U.S. Postal Service. Which of the variables is categorical?
- A portion or subset of the cases under study is called the statistic.

- Each day, the office staff at Oasis Quick Shop prepares a frequency distribution and an ogive of sales transactions by dollar value of the transactions. Saturday’s cumulative frequency is given below. What is the percentage of sales transactions that were under $150?

- The following graphic depicts the final grades from QMB3200 in Fall 2011. This graph is a

- High levels of glucose in the blood are indications of diabetes, which is becoming more prevalent in the United States. Diabetes can lead to many complications such as blindness and heart disease. A random sample of 200 individuals had their blood sugar level measured. The box plot below illustrates the results obtained. According to the graph, how many people had glucose levels above 110?
**100**

- Each day, the office staff at Oasis Quick Shop prepares a frequency distribution and an ogive of sales transactions by dollar value of the transactions. Saturday’s cumulative frequency ogive is given below. The number of sales transactions on Saturday that were between $125 and $150 was
- The number of sales transactions on Saturday that were over $150 was

- The website www.checkfacebook.com publishes the statistics on the use of the popular website FACEBOOK.COM. The recent stats for the ten largest countries on Facebook are given below. What is the median number of users of these ten countries?

- The following graph illustrates the distribution of letter grades for a FIU Course in a class of 300 students. Based on this information, how many students had Bs as their letter grade?

- According to the following graphic, the percentage of students who got a final grade of “A” was approximately

- A Weight-loss company is experimenting with a new diet to help its customers quickly lose weight. A sample of 60 customers is put on the diet for a period of 4 weeks at the end of which they determine how much weight (in pounds) they have lost while on the diet. The box plot below illustrates the results. According to the graph, half of the customers lost at least
pounds._________

- Determine the Variance for a sample of 12 companies that have the following number of professionals per office.

- Sue Taylor, Director of Global Industrial Sales, is concerned by a deteriorating sales trend. Specifically, the number of industrial customers is stable at 1,500 but they are purchasing less each year. She orders her staff to search for causes of the downward trend by surveying all 1,500 industrial customers. For this study, the set of 1,500 customers is
- A descriptive measure of the sample is called a statistic.

- The following graph shows the distribution of complaints for a local restaurant. According to the graph the percentage of complaints that corresponds to the most common cause (overpriced food) is between [p1] and [p2].

- High levels of glucose in the blood are indication of diabetes, which is becoming more prevalent in the United States. Diabetes can lead to many complications such as blindness and heart disease. A random sample of 250 individuals had their blood sugar level measured. The box plot below illustrates the results obtained. According to the graph, how many people had glucose levels above 110?

- A Weight-loss company is experimenting with a new diet to help its customers quickly lose weight. A sample of 30 customers is put on the diet for a period of 4 weeks at the end of which they determine how much weight (in pounds) they have lost while on the diet. The box plot illustrates the results. According to the graph, 15 customers lost less than
pounds.____________

- The website www.checkfacebook.com publishes the statistics on the use of the popular website FACEBOOK.COM. The recent stats for the ten largest countries on Facebook are given below, showing how these ten countries rank and the corresponding number of users for each of them. What is the mean number of users of these ten countries?

- The following graph shows the distribution of complaints for a local restaurant. According to the graph the percentage of complaints that corresponds to the three most common causes is
______________

- Each day, the office staff at Oasis Quick Shop prepares a frequency distribution and an ogive of sales transactions by dollar value of the transactions. Saturday’s cumulative frequency ogive is given below. What is the percentage of sales transactions that were over $150?

- The following graph illustrates the distribution of letter grades for a FIU Course in a class of 250 students. Based on this information, how many students had either As or Bs as their grade?

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