REVIEW-TEST 1.doc

8 Pages
214 Views
Unlock Document

Department
Quantitative Methods
Course
QMS 102
Professor
Jason Chin- Tiong Chan
Semester
Fall

Description
Business Statistics I (QMS102) - Test 1 REVIEW PROBLEMS Question 1 Consider the following questions being asked on a survey. What is the measurement scale of the response data? (a)Ordinal (b)Nominal (c)Interval (d)Ratio – Discrete (e)Ratio - Continuous 1) What was the rating of the hotel that you last stayed in? a) Dissatisfied b) Somewhat Dissatisfied c) Somewhat satisfied d) Satisfied e) Very good 2) What is your marital status? 1=Married; 2=Common Law; 3=Widowed; 4=Divorced; 5=Single 3) What is the major that you are studying? a) Math b) Physics c) Chemistry d) Biology e) History 4) What is the postal code? 5) Which letter grade did you get on your Chemistry course last term? 6) What is the color of your eyes? 7) What is the color of your car? 8) Where is your hometown? 9) How many courses are taking this term? 10) How much time do you spend on shoppin0 each week? 11) What was the lowest temperature in C in the city you are living last month? 12) How many children do you intend to have? 13) How many languages can you speak? 14) Which language is your native language? 15) Where were you born? 16) What is your weight? 17) How long does it take for you to walk from your home to Ryerson? NOTE: Questions 2 – 3 are based on the following information. The following data represents the heights (m) for a sample of 11 boys at age 12. 1.38, 1.43, 1.25, 1.47, 1.29, 1.54, 1.37, 1.25, 1.53, 1.45, 1.29 Question 2 If you were to construct a stem-and-leaf display using the rules discussed in lectures for the above data, how many stems should your stem-and-leaf display have? a) 7 b) 8 c) 6 d) 9 e) None of these Question 3 Based on the stem-and-leaf display (using the rules discussed in lectures) for the above data, how many leaves would there be on the second stem of your stem-and-leaf display? a) 4 b) 0 c) 2 d) 3 e) None of these NOTE: Questions 4 - 7 are based on the following information. The following data represents the heights (m) for a sample of 12 boys at age 12. 1.38, 1.43, 1.25, 1.47, 1.29, 1.54, 1.37, 1.25, 1.53, 1.45, 1.29, 1.41 Question 4 If you were to construct a frequency distribution using the rules discussed in lectures for the above data, what would the class width (in thousand dollars) be? a) 1.0 b) 0.05 c) 0.50 d) 0.10 e) 0.025 Question 5 If you were to construct a frequency distribution using the rules discussed in lectures for the above data, how many classes are there in the frequency distribution? a) 4 b) 5 c) 8 d) 6 e) 10 Question 6 Based on the frequency distribution using the rules discussed in lectures for the above data, what is the relative frequency of the fourth class? (The answers provided below are rounded to three decimal places). a) 0.250 b) 0.333 c) 0.375 d) 0.167 e) None of these Question 7 Based on the frequency distribution using the rules discussed in lectures for the above data, what is the cumulative percentage of up to and including the third class? (The answers provided below are rounded to two decimal places). a) 16.67% b) 33.33% c) 50.00% d) 46.67% e) None of these Use the following data for questions 8 to 10 inclusive. The following table represents the distribution of the income ($1000) in 2011 for a sample of households in Toronto. Table 1 Income ($1000) Number of households 20 and under 37 30 30 and under 22 40 40 and under 50 45 50 and under 5 60 60 and under 20 70 70 and under 80 11 80 and under 15 90 Question 8 The number households in this sample, whose incomes in 2011 are lower than $70,000, is a) 12.9% b) 16.8% c) 73.5% d) 83.2% e) 80.3% Question 9 The relative frequency of the households in this sample, whose incomes in 2011 are higher than $50,000, is (rounded to three decimal places): a) 0.671 b) 0.032 c) 0.329
More Less

Related notes for QMS 102

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit