MATH 225N Statistics Final EXAM – Chamberlain College of Nursing
MATH 225N Statistics Final EXAM| 105 COMPLETE QUESTIONS WITH
100% RATED CORRECT ANSWERS | 2025 LATEST UPDATED | GET A+
Identify the sampling technique used in the following information.
An important part of employee compensation is a benefits package that might include health
insurance, life insurance, child care, vacation days, retirement plan, parental leave, bonuses, etc.
Suppose you want to conduct a survey of benefits packages available in private businesses in
Hawaii. You want a sample size of 100. Sampling technique used to get the sample size of 100 is
described below.
Assign each business in the Island Business Directory a number, and then use a random-number
table to select the business to be included in the sample. - (answer)Simple random sample
Data may be classified by one of the four levels of measurement. What is the name of the lowest
level? - (answer)nominal 你是想要一篇“眼睛容易阅读
的”中文文章
Identify the level of measurement corresponding to the data "Salesperson's performance: below
average, average, above average" associated with robotics. - (answer)ordinal
Assume that the following data represent baseball batting averages (multiplied by 1000) for a
random sample of National League players near the end of the baseball season. Make a
frequency table showing class limits, class boundaries, midpoints and frequency. Use five
classes. (Round your answer for boundaries and midpoints to the nearest tenth.)
196 257 150 293 147 297 199 252 183
125 107 259 306 306 273 289 316 254
215 252 249 259 265 184 115 204 - (answer)
Class Limits Boundaries Midpoint Frequency
107-149 106.5-149.5 128.0 4
150 - 192
,149.5 - 192.5
171.0
3
193 - 235
192.5 - 235.5
214.0
4
236 - 278
235.5 - 278.5
257.0
9
279-321 278.5-321.5 300.0 6
Find the range for the following sample data.
你是想要一篇“眼睛容易阅读
x:
的”中文文章
21
18
12
35
25 - (answer)23
,Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable
representing annual percent return for the Vanguard Total Stock Index (all Stocks). Let y be a
random variable representing annual return for the Vanguard Balanced Index (60% stock and
40% bond). For the past several years, assume the following data.
x: 12 0 38 23 34 25
26
-12
-12
-23
y: 10
-3
你是想要一篇“眼睛容易阅读
27 15 24 18 15
的”中文文章
-3
-4
-10
The sample means for x and y are 11.10 and 8.90, respectively.
Compute the coefficient of variation for each fund. Round your answers to the nearest tenth. -
(answer)for x-values: 193.7%, and for y-values: 146.1%
It is thought that prehistoric Indians did not take their best tools, pottery, and household items
when they visited higher elevations for their summer camps. It is hypothesized that
, archaeological sites tend to lose their cultural identity and specific cultural affiliation as the
elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological
site in the southwestern United States. Let y be the percentage of unidentified artifacts (no
specific cultural affiliation) at a given elevation. Suppose that the following data were obtained
for a collection of archaeological sites in New Mexico:
x
5.50
6.50
7.25
8.00
你是想要一篇“眼睛容易阅读
8.75 的”中文文章
y
10
41
53
89
MATH 225N Statistics Final EXAM| 105 COMPLETE QUESTIONS WITH
100% RATED CORRECT ANSWERS | 2025 LATEST UPDATED | GET A+
Identify the sampling technique used in the following information.
An important part of employee compensation is a benefits package that might include health
insurance, life insurance, child care, vacation days, retirement plan, parental leave, bonuses, etc.
Suppose you want to conduct a survey of benefits packages available in private businesses in
Hawaii. You want a sample size of 100. Sampling technique used to get the sample size of 100 is
described below.
Assign each business in the Island Business Directory a number, and then use a random-number
table to select the business to be included in the sample. - (answer)Simple random sample
Data may be classified by one of the four levels of measurement. What is the name of the lowest
level? - (answer)nominal 你是想要一篇“眼睛容易阅读
的”中文文章
Identify the level of measurement corresponding to the data "Salesperson's performance: below
average, average, above average" associated with robotics. - (answer)ordinal
Assume that the following data represent baseball batting averages (multiplied by 1000) for a
random sample of National League players near the end of the baseball season. Make a
frequency table showing class limits, class boundaries, midpoints and frequency. Use five
classes. (Round your answer for boundaries and midpoints to the nearest tenth.)
196 257 150 293 147 297 199 252 183
125 107 259 306 306 273 289 316 254
215 252 249 259 265 184 115 204 - (answer)
Class Limits Boundaries Midpoint Frequency
107-149 106.5-149.5 128.0 4
150 - 192
,149.5 - 192.5
171.0
3
193 - 235
192.5 - 235.5
214.0
4
236 - 278
235.5 - 278.5
257.0
9
279-321 278.5-321.5 300.0 6
Find the range for the following sample data.
你是想要一篇“眼睛容易阅读
x:
的”中文文章
21
18
12
35
25 - (answer)23
,Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable
representing annual percent return for the Vanguard Total Stock Index (all Stocks). Let y be a
random variable representing annual return for the Vanguard Balanced Index (60% stock and
40% bond). For the past several years, assume the following data.
x: 12 0 38 23 34 25
26
-12
-12
-23
y: 10
-3
你是想要一篇“眼睛容易阅读
27 15 24 18 15
的”中文文章
-3
-4
-10
The sample means for x and y are 11.10 and 8.90, respectively.
Compute the coefficient of variation for each fund. Round your answers to the nearest tenth. -
(answer)for x-values: 193.7%, and for y-values: 146.1%
It is thought that prehistoric Indians did not take their best tools, pottery, and household items
when they visited higher elevations for their summer camps. It is hypothesized that
, archaeological sites tend to lose their cultural identity and specific cultural affiliation as the
elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological
site in the southwestern United States. Let y be the percentage of unidentified artifacts (no
specific cultural affiliation) at a given elevation. Suppose that the following data were obtained
for a collection of archaeological sites in New Mexico:
x
5.50
6.50
7.25
8.00
你是想要一篇“眼睛容易阅读
8.75 的”中文文章
y
10
41
53
89
