Identify the scale and variable and construct the histogram

Assignment Help Basic Statistics

Reference no: EM1320223

1. The two types of quantitative variables are:

a. Ordinal and ratio

b. Interval and ordinal

c. Nominal and ordinal

d. Interval and ratio

e. Nominal and interval

2. True (T) /False (F) Questions. Clearly mark the appropriate letter as indicated.

a. T or F A population is a collection of all individuals, objects, or measurements of interest.

b. T or F A sample is a portion or part of the population of interest.

c. T or F To infer something about a population, we usually take a sample from the population.

d. T or F Data that can be only classified into categories is nominal data.

e. T or F Ordinal level of measurement implies some sort of ranking.

f. T or F Ordinal level or measurement is considered the \"lowest\" level of measurement.

g. T or F A store asks shoppers for their zip code to identify market areas. Zip codes are an example of ratio data.

h. T or F There are four levels of measurement - Qualitative, quantitative, discrete, and continuous.

i. T or F The principal difference between the interval and ratio scale or level or measurement is that the ratio scale has a meaningful zero point.

j. T or F Categorizing as Democrats, Republicans and Independents is an example of interval level measurement.

3. Complete the table by associating the categories of variables with their categories with an "X".

The categories of the variable: (LEVELS OF MEASUREMENT)

Level	Category/classes names	Have an inherent order from more to less or higher to lower (Ranking)	Are numbers with equal intervals between them	Are numbers that have a theoretical zero point
Nominal level
Ordinal level
Interval level
Ratio level

4. Constructing a Frequency Distribution Table & Histogram

The Bureau of Finance of the Los Angeles Sheriff has always been a relaxed place to work. Employees are allowed 60 minutes for a lunch break and are not required to sign or punch in or out. Recently the head of Department has come to suspect that employees are taking advantage of the comfortable atmosphere by disappearing for more than 60 minutes at lunch. He decides to check his suspicions by monitoring for a week the number of minutes spent at lunch by each employee in a typical department of the Bureau. He considers a lunch break of up to 65 minutes acceptable and longer than that, unacceptable.

Question: Following are the data collected. Should the head of the Bureau be concerned about the time taken at lunch by employees? Why? Present the data (Frequency Distribution) in ways to support your answer.

Raw Data (Minutes at lunch)

75 93 66 68 60 65 63 85

78 86 73 77 69 63 64 87

93 61 80 65 82 75 60 64

62 84 64 63 63 61 70 67

76 73 72 91 80 70 89 82

Minutes Spent # of Employees Percentage of

At Lunch (FREQUENCY) Lunch Breaks

VARIABLES

5. Identify the following as discrete or continuous data:

a. Weights of grizzly bears:

b. Number of grizzly bears in the fifty states:

c. Radar indicating that Mr. Nolan Ryan pitched the last ball at 97.3 miles/hour:

d. Among 150,000 consumers surveyed, 147,387 recognized the Coca Cola brand name:

Reference no: EM1320223

Questions Cloud

Compute the distance it travels during the first second : When the Sun is straight overhead, a hawk dives toward the ground with the constant velocity of 4.50 m/s at 52° below the horizontal. Compute the speed of her shadow on the level ground.

Positive also negative consequences of such policies : Fed's policies both in terms of the positive also negative consequences of such policies also in relation to the Keynesian also classical theories.

What is the stopping distance when the surface is dry : What is the stopping distance when the surface is dry and the coefficient of friction is 0.620.

Elucidate how many popsicles will be sold : Consider the elasticity of supply. In the short run, a elucidate how many popsicles will be sold each day in the short run if the price rises.

Identify the scale and variable and construct the histogram : Following are the data collected. Should the head of the Bureau be concerned about the time taken at lunch by employees? Why?

Case study of corben inc : Corben Inc. has a successful brand with the name Crunz. The market size in which Crunz competes is $4 billion, and Crunz has generated sales of $400 million. It has a contribution margin of 30% and annual fixed costs of $20 million.

Assume the original mass m2 is replaced by a mass : Assume a constant upward slope of 32; calculate the horizontal and vertical components of the acceleration of a truck that slowed from 140 to rest in 7.3.

Production of an economy creates pollution : Some of the production of an economy creates pollution illustrated by the move.

What is the null hypothesis and alternative hypothesis : What is the null hypothesis and alternative hypothesis

User Account

All Pages