Question
In: Statistics and Probability
A survey of 85 people in Kansas City gave the following results: 33 were fans of...
A survey of 85 people in Kansas City gave the following results:
33 were fans of the Kansas City Chiefs
43 were fans of the Kansas City Royals
46 were fans of the Sporting Kansas City
23 were fans of the Chiefs and Royals
12 were fans of the Chiefs and Sporting KC
24 were fans of the Royals and Sporting KC
12 were fans of none of these teams.
How many people were fans of the Chiefs or Royals but not Sporting KC?
Solutions
orchestra answered 1 year agoRelated Solutions
A random sample of communities in western Kansas gave the following information for people under 25...
A random sample of communities in western Kansas gave the
following information for people under 25 years of age. Rate of hay
fever per 1000 population for people under 25 124 96 98 107 120 122
142 136 112 124 81 124 108 120 144 115 A random sample of regions
in western Kansas gave the following information for people over 50
years old. : Rate of hay fever per 1000 population for people over
50 87 103 100 98...
The table shows the results of a survey that asked 2850 people whether they were involved...
The table shows the results of a survey that asked 2850 people
whether they were involved in any type of charity work. A person is
selected at random from the sample. Find the probability of each
event. Give your answers as simplified fractions or as decimals
rounded to 3 places.
Frequently
Occasionally
Not at all
Total
Male
221
456
795
1472
Female
207
430
741
1378
Total
428
886
1536
2850
a) What is the probability that the person is...
The results of a survey found that people were more likely to enjoy coffee with cream...
The results of a survey found that people were more likely to
enjoy coffee with cream if they lived in California (US) than if
they lived in Vancouver (Canada). They sampled people from
California and Vancouver. Out of 4950 Californian people, 1884
preferred coffee with cream. Out of 5819 Vancouver people, 788
preferred coffee with cream. Construct a 95% confidence interval
for the difference between these two opinions
(pCalifornia−pVancouver). Report the lower bound of the confidence
interval.
the results of a survey in which people from high income countries were asked to report...
the results of a survey in which people from high income
countries were asked to report their level of education (less than
basic, basic and advanced) and whether they were employed or not.
The results are in thousands and are for the 2016-17 period.
You work for a Human Resources firm interested in global
employment trends. You randomly sample 30 employed people from high
income countries and ask them about their level of education.
a) What is the probability that...
A random sample of n1 = 16 communities in western Kansas gave the following information for...
A random sample of n1 = 16 communities in western Kansas gave
the following information for people under 25 years of age.
x1: Rate of hay fever per 1000 population for people under 25 96
92 120 130 91 123 112 93 125 95 125 117 97 122 127 88 A random
sample of n2 = 14 regions in western Kansas gave the following
information for people over 50 years old.
x2: Rate of hay fever per 1000 population for...
A random sample of n1 = 16 communities in western Kansas gave the following information for...
A random sample of n1 = 16 communities in
western Kansas gave the following information for people under 25
years of age.
x1: Rate of hay fever per 1000
population for people under 25
96
88
122
130
90
123
112
93
125
95
125
117
97
122
127
88
A random sample of n2 = 14 regions in
western Kansas gave the following information for people over 50
years old.
x2: Rate of hay fever per 1000
population for...
A random sample of n1 = 16 communities in western Kansas gave the following information for...
A random sample of n1 = 16 communities in
western Kansas gave the following information for people under 25
years of age.
x1: Rate of hay fever per 1000
population for people under 25
100
92
122
129
94
123
112
93
125
95
125
117
97
122
127
88
A random sample of n2 = 14 regions in
western Kansas gave the following information for people over 50
years old.
x2: Rate of hay fever per 1000
population for...
A random sample of n1 = 16 communities in western Kansas gave the following information for...
A random sample of n1 = 16 communities in
western Kansas gave the following information for people under 25
years of age.
x1: Rate of hay fever per 1000
population for people under 25
98
90
120
128
92
123
112
93
125
95
125
117
97
122
127
88
A random sample of n2 = 14 regions in
western Kansas gave the following information for people over 50
years old.
x2: Rate of hay fever per 1000
population for...
A random sample of n1 = 16 communities in western Kansas gave the following information for...
A random sample of n1 = 16 communities in western Kansas gave
the following information for people under 25 years of age. x1:
Rate of hay fever per 1000 population for people under 25 100 91
119 127 93 123 112 93 125 95 125 117 97 122 127 88 A random sample
of n2 = 14 regions in western Kansas gave the following information
for people over 50 years old. x2: Rate of hay fever per 1000
population for...
People were polled on how many books they read the previous year. Initial survey results indicate...
People were polled on how many books they read the previous
year. Initial survey results indicate that s=13.5 books.
a. How many subjects are needed to estimate the mean number of
books read the previous year within four books with 95%
confidence?
b. How many subjects are needed to estimate the mean number of
books read the previous year within two books with 95%
confidence?
c. What effects does doubling the required accuracy have on the
sample size?
1. Doubling...
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