Question 12 A hotel chain wants to learn about the level of experience of its general managers. A random sample of 40 general managers is taken and their experience (in number of years) is recorded. The information is summarised in the following frequency table: Experience Frequency Midpoint (years) 5,5 - 8,5 f 7 8,5 – 11,5 10 11,5 14,5 13 14,5 - 17,5 12 16 17,5 - 20,5 10 19 20,5 - 23,5 4 22 The best estimate of the mean number of years of experience, rounded to two decimal places, is (1] 15.48. [2] 4,24. [3] 7,11. [4] 17,95.
Question 12 A hotel chain wants to learn about the level of experience of its general managers. A random sample of 40 general managers is taken and their experience (in number of years) is recorded. The information is summarised in the following frequency table: Experience Frequency Midpoint (years) 5,5 - 8,5 f 7 8,5 – 11,5 10 11,5 14,5 13 14,5 - 17,5 12 16 17,5 - 20,5 10 19 20,5 - 23,5 4 22 The best estimate of the mean number of years of experience, rounded to two decimal places, is (1] 15.48. [2] 4,24. [3] 7,11. [4] 17,95.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 13PT
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![Question 12
A hotel chain wants to learn about the level of experience of its general managers. A random sample of
40 general managers is taken and their experience (in number of years) is recorded. The information is
summarised in the following frequency table:
49
Experience Frequency Midpoint
(years)
5,5-
f
8,5
3
8,5
11,5
10
11,5 – 14,5
6.
13
14,5 – 17,5
12
16
17,5 - 20,5
10
19
20.5 – 23,5
4
22
The best estimate of the mean number of years of experience, rounded to two decimal places, is
[1]
15,48.
[2]
4,24.
[3]
7,11.
[4]
17,95.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F72c4854f-1e3f-406a-8f93-a2c14c2a7b0f%2Fc01ae452-ce02-4f2b-a9dc-793aca1a1546%2F5668olk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question 12
A hotel chain wants to learn about the level of experience of its general managers. A random sample of
40 general managers is taken and their experience (in number of years) is recorded. The information is
summarised in the following frequency table:
49
Experience Frequency Midpoint
(years)
5,5-
f
8,5
3
8,5
11,5
10
11,5 – 14,5
6.
13
14,5 – 17,5
12
16
17,5 - 20,5
10
19
20.5 – 23,5
4
22
The best estimate of the mean number of years of experience, rounded to two decimal places, is
[1]
15,48.
[2]
4,24.
[3]
7,11.
[4]
17,95.
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