Business Statistics Quiz



Business Statistics Quiz

MGT340 Quiz

Start in Module 5, complete and return in Module 6

What type of research uses numeric measurement data? _Quantitative _

What type of research uses a research hypothesis? __ Quantitative __

How is a research question similar to a research hypothesis?

__research question is similar to research hypothesis as both aims to address the proposed research problem__

What type of research does not use statistical data analysis? _Qualitative Research_

What type of research preempts all other types of research endeavors? _Mixed Method Research_

Business research is a type of _Exploratory Or Descriptive_ inquiry.

The sole purpose of business research is to increase profit margins? ______ True

When conducting business research the investigator must make his/her opinions known about possible results? ______False

When one is conducting business research the most important factor is developing a reasonable researchable question? _____True

Business research should always begin with an alternate hypothesis? ____True

The number of widgets produced by 9 employees in an eight hour shift is recorded below. Find the mean number of widgets produced.

135, 120, 116,  119,  121,  125,  135,  131,  123

MEAN = 125

What is the range of widgets produced given in problem presented above?

RANGE = 19

What is the mode of the number of widgets produced presented above?

MODE = 135

What is the median of the number of widgets produced presented above?

MEDIAN = 123

The mean price of 5 items is $7.00. The prices of the first four items are $6.50,  $8.00,  $5.50  and $6.00. How much does the fifth item cost?

The Fifth Item Cost =$9

The range of a set of numbers is 1,362. The greatest number is 2,172. What is the least number?

Least Number = 810

The mean of a set of 7 numbers is 13. What is the sum of the numbers?

The Sum of the Numbers = 91

Find the mode of the following test scores:89,  78,  91,  82,  75,  89,  84,  95,  89,  93

Mode = 89

The mean of a set of data is 174.25 and the sum of the data is 1,394. How many numbers are in the set?

Numbers in the data set = 8

The grade point averages of 10 students are listed below. Find the median grade point average.3.15,  3.62,  2.54,  2.81,  3.97,  1.85,  1.93,  2.63,  2.50,  2.80

Median = 2.715

A large mass of data can best be summarized pictorially by means of:

b. a histogram

For a symmetric distribution, the mean and median are

a. the same



A distribution of 7 scores has a median of 21. If the highest score increases 3 points, the median will become ___________.

a. 21



If you are told a population has a mean of 25 and a variance of 0, what must you conclude?

d. All the elements in the population are 25.



Which of the following measures of central tendency tends to be most influenced by an extreme score?

c. mean

Which of the following is not a measure of central tendency?

d. standard deviation



The following data represent scores of 50 students in an applied business statistics test.

72 72 93 70 59 78 74 65 73 80

57 67 72 57 83 76 74 56 ...