Question

Chapter 1 Question#1 (9 points) The following temperatures and weather conditions were reported for a particular summer day Highl-Low T condition 92 City Chicago Dallas-Ft.Worth clear 89 72cloudy clear Honolulu Los Angeles 70 80 New York City90 69 a. How many elements are in the above data set? b. How many variables are in this data set? c. Which variables are categorical, and which are quantitative variables? d. What percentage of the cities had clear weather conditions? rain Question #19 on p.27 worth 8 points (do only parts a, b, c, and e) 2Quian 23 (29 points) Section 2.1: Question#3 (29 points) The Higher Education Research Institute at UCLA provides statistics on the most popular majors among incoming college freshman. The five most popular majors are Arts & Humanities (A), Business Administration (B), Engineering (E), Professional (P). and Social Science (S). A broad range of other (O) majors [including biological science, physical science, computer science, and education) are grouped together. The majors selected for a sample of 64 college freshmen follow. S P POBEO EPOOBOOOA Summarize the data by constructing or answering the following a. A frequency distribution and percent frequency distribution b. A bar chart (Using Excel) c. What percentage of freshmen select one of the five most popular majors? d. What is the most popular major for incoming freshmen? What percentage of freshmen select this major? A pie chart (Using Excel) e. Section 2.2: Question #23 on p.54 worth 21 points (Using Excel for histogram) Question #25 on p 55 worth 10 points Sections 2.3: and 2.4: Question#6 (23 points) Using the information about performance data for 10 motion pictures in Table 2.20 on p.86, answer the following questions. a. Prepare a crosstabulation of the data on Opening Gross Sales (rows) and b. Comment on the relationship between the two variables based upon the crosstabulation c. Using Excel, develop a scatter diagram of the data on Opening Gross Sales and d. Comment on the relationship between the two variables based upon the scatter diagram Weeks in Release (columns). developed in part (a) Total Gross Sales. Use the vertical axis for Opening Gross Sales developed in part (c).

Answer 1

Solution:-

23)

a)

b)

Class Interval Frequency Relative frequency 0 to 3 3 to 6 6 to 9 9 to 12 12 to 15 Sum 0.1 0.56 0.16 0.12 0.06 28 50

c)

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d) The data indicates that personal computer is used mostly for 3 to 6 hours during one week.