Question
In: Statistics and Probability
The following data represent the smoking status by level of education for people 18 years old...
The following data represent the smoking status by level of education for people 18 years old or older.
Smoking Status
Number of Years of Education current former never
<12 159 98 196
12 148 81 150
13-15 44 29 33
16 or more 32 26 40
Test whether smoking status and level of education are independent.
a. What is the expected value of the number of Former smokers and 13-15 Years of Education, if we assume that the two variables are independent?
b. Show/explain why the requirements are satisfied.
c. State the p-value
d. State the conclusion so anyone can understand it, using the “best” significance level.
Solutions
orchestra answered 2 years agoRelated Solutions
The following data represent the level of health and the level of education for a random...
The following data represent the level of health and the level
of education for a random sample of 1504 residents. Complete parts
(a) and (b) below. Education Excellent Good Fair Poor Not a H.S.
graduate 89 151 52 112 H.S. graduate 86 101 53 100 Some college 81
132 66 108 Bachelor Degree or higher 58 147 60 108 (a) Does the
sample evidence suggest that level of education and health are
independent at the alphaequals0.05 level of significance? Conduct...
The following data represent the level of health and the level of education for a random...
The following data represent the level of health and the level
of education for a random sample of 1504 residents. Complete parts
(a) and (b) below. Education Excellent Good Fair Poor Not a H.S.
graduate 89 151 52 112 H.S. graduate 86 101 53 100 Some college 81
132 66 108 Bachelor Degree or higher 58 147 60 108 (a) Does the
sample evidence suggest that level of education and health are
independent at the alphaequals0.05 level of significance? Conduct...
The following data represent the level of health and the level of education for a random...
The following data represent the level of health
and the level of education for a random sample of 1815
residents.
Education
Excellent
Good
Fair
Poor
Not a H.S. graduate
105
148
105
116
H.S. graduate
118
129
110
119
Some college
116
146
117
124
Bachelor Degree or higher
68
142
59
93
Make the proper conclusion. Choose the correct answer below.
A. Fail to reject H0. There is sufficient evidence that level of
education and health are associated.
B....
The following data represent the highest level of education and belief in Heaven for a random...
The following data represent the highest level of education and
belief in Heaven for a random sample of adult Americans.
Yes, definitely
Yes, probably
No, probably not
No, definitely not
Total
Less than high school
316
66
21
9
412
High school
956
296
122
65
1439
Bachelor’s
267
131
62
64
524
Total
1539
493
205
138
2375
Construct a relative frequency marginal distribution.
What proportion of adult Americans in the survey definitely
believe in Heaven?
Construct a conditional...
The table summarizes data on smoking status and perceived risk of smoking and is consistent with...
The table summarizes data on smoking status and perceived risk
of smoking and is consistent with summary quantities obtained in a
Gallup Poll conducted in November 2002. Assume that it is
reasonable to consider these data as representative of the U.S.
adult population.
Perceived Risk
Smoking Status
Very Harmful
Somewhat Harmful
Not Too Harmful
Not at All Harmful
Current Smoker
58
35
5
1
Former Smoker
69
20
3
2
Never Smoked
85
11
2
1
(a) What is the...
The following table gives information about 500 people according to their smoking status and gender and...
The following table gives information about 500 people according
to their smoking status and gender and opinion on a tax reform
bill. It is of interest to know if the gender and smoking status
are associated.
Non-Smoker
Regular Smoker
Occasional
total
Male
138
83
64
285
Female
64
67
84
215
Total
202
150
148
500
a. Write the relevant null and alternative hypotheses
b. If the calculated Chi-Square test statistic is 22.153, find
the corresponding p-value
c. Write your...
Consider the following data from a study of the relationship between smoking status of the mother...
Consider the following data from a study of the relationship
between smoking status of the mother and infant birth weight.
Select the appropriate non-parametric test for data analysis and
show the steps of hypothesis testing (α =
0.05).
Non-smokers
Ex-smokers
Smoker (< ½ pack per day)
Smoker (≥ ½ pack per day)
8.56
7.39
5.97
7.03
8.47
8.64
6.77
5.24
6.39
8.54
7.26
6.14
9.26
5.37
5.74
6.74
7.98
9.21
8.74
6.62
6.84
6.30
7.37
4.94
6.34
Step 1: State...
According to an almanac, 70% of adult smokers started smoking before turning 18 years old. (a)...
According to an almanac,
70% of adult smokers started smoking before turning 18 years
old.
(a) If 300 adult smokers are randomly selected, how many would
we expect to have started smoking before turning 18 years old?
(b) Would it be unusual to observe 255 smokers who started
smoking before turning 18 years old in a random sample of 300
adult smokers? Why?
The following data represent the number of people aged 25 to 64 years covered by health...
The following data represent the number of people aged 25 to 64
years covered by health insurance (private or government) in
2018. Approximate the mean and standard deviation for age. Age
25-34 35-44 45-54 55-64 Number (millions) 22.3 34.4 35.4
28.9
1) The following data represent the level of happiness and level of health for a random...
1)
The following data represent the level of happiness and level of
health for a random sample of individuals from the General Social
Survey. A researcher wants to determine if health and happiness
level are related. Use the αα = 0.05 level of significance to test
the claim.
Health
Excellent
Good
Fair
Poor
Very Happy
271
261
82
20
Pretty Happy
247
567
231
53
Not Too Happy
33
103
92
36
*Source: General Social Survey
1) Determine the null...
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