Question
In: Statistics and Probability
Find the margin of error and 95% confidence interval for the following surveys. Round all answers...
Find the margin of error and 95% confidence interval for the following surveys. Round all answers to 2 decimal places.
a) A survey of 500 people finds that 45% plan to vote for Smith for governor. Margin of Error (as a percentage): Confidence Interval: % to %
b) A survey of 1500 people finds that 61% support stricter penalties for child abuse.
Margin of Error (as a percentage):
Confidence Interval: % to % License
Solutions
orchestra answered 1 year agoRelated Solutions
Find the margin of error and 95% confidence interval for the following surveys. Round all answers...
Find the margin of error and 95% confidence interval for the
following surveys. Round all answers to 2 decimal places.
a) A survey of 500 people finds that 67% plan to vote for Smith
for governor. Margin of Error (as a percentage):
answer _____ Confidence Interval: answer _____ % to
answer ____ %
b) A survey of 1500 people finds that 44% support stricter
penalties for child abuse.
Margin of Error (as a percentage): answer ____ Confidence
Interval: answer _____ %...
Find the margin of error and 95% confidence interval for the following surveys. Round all answers...
Find the margin of error and 95% confidence interval for the
following surveys. Round all answers to 2 decimal
places.
(a) A survey of 500 people finds that 60% plan
to vote for Smith for governor.
Margin of Error (as a percentage): Correct
Confidence Interval: % to %
(b) A survey of 1500 people finds that 55%
support stricter penalties for child abuse.
Margin of Error (as a percentage): Correct
Confidence Interval: % to %
Confidence Intervals (Proportions) 1 Find the margin of error and 95% confidence interval for the following...
Confidence Intervals (Proportions)
1 Find the margin of error and 95% confidence interval for the
following surveys. Round all answers to 2 decimal
places.
(a) A survey of 500 people finds that 56% plan
to vote for Smith for governor.
Margin of Error (as a percentage):
Confidence Interval: % to %
(b) A survey of 1500 people finds that 47%
support stricter penalties for child abuse.
Margin of Error (as a percentage):
Confidence Interval: % to %
2 Assume that...
Find the margin of error for the 95% confidence interval used to estimate the population proportion.
Find the margin of error for the 95% confidence interval used to
estimate the population proportion.
Find the margin of error and 95% confidence interval for the survey result described. According to...
Find the margin of error and 95% confidence interval for the
survey result described.
According to a poll of
1847
people, about one-third
(32%)
of Americans keep a dog for protection.
Margin of
error equals= ___%
(Round to the nearest whole number as needed.)Confidence
interval is from
____%
to
____%.
Find the margin of error for a 95% confidence interval (nearest hundredths) of the mean test...
Find the margin of error for a 95% confidence interval (nearest
hundredths) of the mean test score of Statistics students at
Clayton State University given the following sample data scores: 87
85 56 82 67 77 73 71 90 74 76 79 81 84
Find a 99% confidence interval estimate (nearest hundredth)
using the data in #12.
The height (in inches) of males in the United States is believed
to be Normally distributed, with mean µ. The average height of...
Find the 80%, 95%, and 99% confidence intervals & margin error Create your own confidence interval...
Find the 80%, 95%, and 99% confidence intervals & margin
error
Create your own confidence interval (you cannot use 80%, 95%,
and 99%) and make sure to show your work. Make sure to list the
margin of error.
122
132
97
102
106
116
94
132
112
123
123
108
84
120
125
123
115
103
127
139
122
124
112
113
109
104
120
109
117
108
125
109
119
138
125
104
110
101
130
124
115
104...
Determine the margin of error for a 95% confidence interval to estimate the population proportion with...
Determine the margin of error for a 95% confidence interval to
estimate the population proportion with a sample proportion equal
to 0.70 for the following sample sizes. a.
nequals100 b. nequals200 c. nequals250
LOADING... Click the icon to view a portion of the Cumulative
Probabilities for the Standard Normal Distribution table. a. The
margin of error for a 95% confidence interval to estimate the
population proportion with a sample proportion equal to 0.70 and
sample size nequals100 is nothing. (Round...
Find the 95% confidence interval for the slope in each of the following settings. (Round your...
Find the 95% confidence interval for the slope in each of the
following settings. (Round your answers to three decimal
places.)
a) n = 20, ŷ = 27.5 +
1.8x, and
SEb1 = 0.85
b) n = 30, ŷ = 30.6 +
2.1x, and
SEb1 = 1.05
c) n = 100, ŷ = 29.5 +
2.1x, and
SEb1 = 1.05
v. Find the margin of error given the following: 99% confidence interval; n = 68, x...
v. Find the margin of error given the following: 99% confidence
interval;
n = 68, x bar = 4156 and Std dev. = 839. ________
a. 1298 b. 237
c. 262 d. 8
vi. When do Type II errors occur?________
a. We decide to reject the null hypothesis when the null
hypothesis was actually true.
b. We fail to reject the null hypothesis when the
null hypothesis is actually false.
c. They occur in both cases.
vii. A standard score...
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