Name: · The main advantage of sampling is that the sample results can be used fo

Question

Name: · The main advantage of sampling is that the sample results can be used for a. computer data processing b. testing hypotheses about sample statistics c. estimating something of interest in the sample d. estimating something of interest in the population e. None of the above 2 The scale of measurement that has an inherent zero value defined is the a. ratio scale b. nominal scale c. ordinal scale d. interval scale e. None of the above (Questions 3-4) Part of the data bank of a corporation is shown below. Years of Experience Aptitude Test Result Years of Salary Department Accounting Emplovee Name $53,442.89 $110,223,87 78,297,21 Smith. Jacob 74 86 79 Todd, Amy Finance 3. The numbers of elements and variables are , respectively a. 4 and 5 3 and5 3 and 4 b. c. d. 3 and3 e. None of the above The data concerning Years of Experience is an example of a. quantitative data with a ratio scale of measurement b. quantitative data with an interval scale of measurement c. categorical data with an ordinal scale of measurement d. categorical data with a ratio scale of measurement e. None of the above 4 5. Bar charts and pie charts are used to summarize a. interval and ratio data b. nominal and interval data c. ordinal and ratio data d. nominal and ordinal data e. None of the above

Explanation / Answer

1) optionD

2) option A

3) option C

4)option A

5)option D

6)option A

7)proportion =total frequency till 29/total frequency =(300/400) =0.75

option D

8)cumulative frequency =(20+80)/100 =0.25

option B

9)

option C

10)option B

11)std deviation=(105.49)1/2 =10.27

option B

12)

std deviaiton/mean =10.88%

13)50th percentile =median =94

option C

14)

118-76 =42

option B

15)

option B

option A

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