(e) Assuming that the four potential outliers of 0, 0, 8, and 20 are not recording errors, repeat the hypothesis test from part (c) (again setting up the hypothesis test and using either the critical value or p-value approach), and compare your results with that obtained in (c). Did you make a different conclusion?
(e) Assuming that the four potential outliers of 0, 0, 8, and 20 are not recording errors, repeat the hypothesis test from part (c) (again setting up the hypothesis test and using either the critical value or p-value approach), and compare your results with that obtained in (c). Did you make a different conclusion?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question

Transcribed Image Text:11:15 PM Sat Jul 23
< 88 Q
X
Lesson 45-47 Week 9
X
MATH140 - Statistical Project #2
Lecture 41-44 Week 8
☆.
X
O
T
Hw 10
X MATH140 - Statistical...
(e) Assuming that the four potential outliers of 0, 0, 8, and 20 are not recording errors, repeat the
hypothesis test from part (c) (again setting up the hypothesis test and using either the critical
value or p-value approach), and compare your results with that obtained in (c). Did you make a
different conclusion?
40%
(f) Imagine you know have to make a recommendation/conclusion to the company that hired you:
Assuming that the four potential outlies are not recording errors, and looking at the two results
above, would you recommend using the first test with the outliers or the second test with the
outliers removed? There is no right or wrong answer here, I am interested in what you think and
your reasoning.

Transcribed Image Text:11:14 PM Sat Jul 23
< 88 a a
X
Lesson 45-47 Week 9
a
C
X
MATH140 - Statistical Project #2
Lecture 41-44 Week 8
Frequency
imagine you're hired by a beef company called "American Beef Makers" as a Data
Analyst and you're tasked with determining if annual beef consumption has increased in the United
States over the ten-year period from 2011 to 2021. In 2011 the annual consumption of beef per person
(per capita) was 57.5 pounds per year.
77
65
20
RIT
To determine if the mean annual beef consumption has increased over the ten-year period from 2011 to
2021, a random sample of 40 people was taken and their annual beef consumption from 2021 was
recorded. The results are shown below, rounded to the nearest pound. Mean 58.4
1 101 sig 0.05
57
54
68
79
56
0
25-
15
10-
5
0-
0
3
50
49
51
56
56
78
63
72
(a) Obtain a histogram of the data. Does the data appear to be normally distributed?
not
20
2
O
X
40
0
62
normally
74
61
61
60
56
37
T
11
60
76
77
67
67
62
89
56
75
Hw 10
Histogram (Frequency Diagram)
Anval beef consuption
23
distributed.
The distribution of data is negatively skewed.
So data is
80
69
73
75
62
8
71
20
47
(b) Obtain a boxplot of the data. Are their any outliers in the data?
Outliers: 0, 0, 8, 20
1
X MATH140 - Statistical...
100
40%
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