Amu Quiz 1- Math 302

1490 words 6 pages
Part 1 of 1 -

20.0 Points

Question 1 of 20

1.0 Points

If a variable has possible values –2, 6, and 17, then this variable is
A. both a continuous and a discrete variable
B. a continuous variable
C. neither a continuous nor a discrete variable D. a discrete variable Answer Key: D
1.0 Points

Question 2 of 20

Which of the following correctly describes the relationship between a sample and a population?
A. A population and a sample are not related. B. A sample is a group of subjects selected from a population to be studied. C. A sample is a group of populations that are subject to observation. D. A population is a group of samples that may or may not be included in a study

Do not use a dollar sign. Note: \$177,760 should be recorded as 177.76. 43.94
1.0 Points

Question 17 of 20

CEOSalaries.xls 14 KB
The following data are the base salaries, in thousands of dollars, of 50 chief executive officers for a sample of companies doing business with the state of Connecticut. That is, the first entry in the table below corresponds to a salary of \$125,000. A copy of this data set can be found in the
Excel Workbook called CEOSalaries.xls. Use these data to answer questions 14 through 17.
125
157
113
127
201
165
145
119
148
158
148
168
117
105
136
136
125
148
108
178
179
191
225
204
104
205
197
119
209
157
209
205
221
178
247
235
217
222
224
187
265
148
165
228
239
245
152
148
115
150
Find the interquartile range of the CEO salaries, in thousands of dollars, rounded to 2 decimal places. Do not use a dollar sign. Note: \$177,760 should be recorded as 177.76. 73
1.0 Points

Question 18 of 20

A student scored 84 points on a test where the mean score was 79 and the standard deviation was
4. Find the student's z

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