Statistics for Business and Economics
Statistics for Business and Economics
1st Edition
ISBN: 9780132745680
Author: NEWBOLD, Paul/ Carlson
Publisher: Pearson College Div
Question
Chapter 1.2, Problem 6E

(a)

To determine

Categorical and numerical variables in golf played last month.

(b)

To determine

Categorical and numerical variables for the number times the residents have eaten in country club last month.

(c)

To determine

Categorical and numerical variables in owning a camper.

(d)

To determine

Categorical and numerical variables in rating the new security system.

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How would you describe this data?
A survey of 800 college seniors resulted in the following crosstabulation (Table 1) regarding their undergraduate major and whether or not they plan to go to graduate school. Please use the information to answer questions 1-3.                                                                 Undergraduate Major  Graduate School Business Engineering Others Total Yes 70 84 126 280 No 182 208 130 520 Total 252 292 256 800   1.What percentage of the students does not plan to go to graduate school? 2.What percentage of the students' undergraduate major is engineering? 3.Of those students who are majoring in business, what percentage plans to go to graduate school?
You are given the following dataset from a sample of the population.  Superhero Number of Villains Captured Number of Losses  Average Hours of  Sleep Spiderham 30 9 12 Alligator Loki 50 1 23 Iron Man 20 8 6 Phil Coulson 18 2 8 Yelena Belova 25 5 2 Round all answers to 2 decimal places. IE: 3.567 = 3.57 A. What kind of dataset is this?  Answer either Panel, Time series, or cross sectional B. Calculate the average number of villains captured in this sample.   C. Calculate the variance of the number of villains captured in this sample.     D. Calculate the correlation between the number of villains captured and average hours of sleep  . If answer is negative, include negative sign. E. Calculate the sample covariance between the average number of losses and average hours of sleep  . If answer is negative, include negative sign.
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