Question
In: Statistics and Probability
Var1 Var2 Confidence Level 95% 113 141 125 137 RESULTS 134 126 Group 1 Group 2...
| Var1 | Var2 | Confidence Level | 95% | |||
| 113 | 141 | |||||
| 125 | 137 | RESULTS | ||||
| 134 | 126 | Group 1 | Group 2 | |||
| 120 | 121 | n | ||||
| 132 | 116 | Mean | ||||
| 120 | 154 | Std Dev | ||||
| 121 | 160 | SE | ||||
| 119 | 155 | t | ||||
| Sp | ||||||
| Margin of Error | ||||||
| Point Estimate | ||||||
| Lower Limit | ||||||
| Upper Limit | ||||||
Solutions
Expert Solution
Using Excel, (Data -> Data Analysis -> t test - Two sample Assuming equal variances),we get the following output -
orchestra answered 1 year agoRelated Solutions
Praxis Scores 115 124 132 134 136 137 138 138 139 140 141 141 144 144...
Praxis Scores
115 124 132 134 136 137 138 138 139 140
141 141 144 144 145 145 145 146 146 148
150 150 150 151 151 151 151 154 154 156
156 156 156 157 158 159 159 159 159 160
161 161 161 161 162 162 163 164 164 164
164 165 165 165 166 166 166 166 168 168
168 168 168 168 169 169 169 169 170 170
171 171 172 173 173 173 173 173...
Praxis Scores 115 124 132 134 136 137 138 138 139 140 141 141 144 144...
Praxis Scores
115 124 132 134 136 137 138 138 139 140
141 141 144 144 145 145 145 146 146 148
150 150 150 151 151 151 151 154 154 156
156 156 156 157 158 159 159 159 159 160
161 161 161 161 162 162 163 164 164 164
164 165 165 165 166 166 166 166 168 168
168 168 168 168 169 169 169 169 170 170
171 171 172 173 173 173 173 173...
Confidence Level 95% SUMMARY STATISTICS Group 1 Group 2 n 50 50 Number of Successes 23...
Confidence Level
95%
SUMMARY STATISTICS
Group 1
Group 2
n
50
50
Number of Successes
23
11
or Sample Proportion
RESULTS*
Group 1
Group 2
Sample Proportions
Risk Difference (RD)
SE (RD)
Z
Margin of Error
CI for Risk Difference
Lower Limit
Upper Limit
Relative Risk (RR)
CI for Relative Risk
Lower Limit
Upper Limit
Odds Ratio (OR)
CI for Odds Ratio
Lower Limit
Upper Limit
A project has a forecasted cash flow of $126 in year 1 and $137 in year...
A project has a forecasted cash flow of $126 in year 1 and $137
in year 2. The interest rate is 5%, the estimated risk premium on
the market is 11.5%, and the project has a beta of 0.66. If you use
a constant risk-adjusted discount rate, answer the following: a.
What is the PV of the project? (Do not round intermediate
calculations. Round your answer to 2 decimal places.) b. What is
the certainty-equivalent cash flow in year 1...
1. If you decrease the level of confidence from 99% to 95%, the width of confidence...
1. If you decrease the level of confidence from 99% to 95%, the
width of confidence interval will A. increase by 4% B. decrease by
4% C. decrease by 8% D. None of the above
2. If you wish to decrease the margin of error, you may do which
one of the following: A. Increase the sample size. B. Reduce the
population size. C. Decrease the level of confidence.
D. Both b and c E. Both a and c
3. In...
At a confidence level of 95% a confidence interval for a population proportion is determined to...
At a confidence level of 95% a confidence interval for a
population proportion is determined to be 0.65 to 0.75. If the
sample size had been larger and the estimate of the population
proportion the same, this 95% confidence interval estimate as
compared to the first interval estimate would be
A. the same
B. narrower
C. wider
Auction Auction Price Age of Item Number Bidders 1 $946 113 9 2 $1,336 126 10...
Auction
Auction Price
Age of Item
Number Bidders
1
$946
113
9
2
$1,336
126
10
3
$744
115
7
4
$1,979
182
11
5
$1,522
150
9
6
$1,235
127
13
7
$1,483
159
9
8
$1,152
117
13
9
$1,545
175
8
10
$1,262
168
7
11
$845
127
7
12
$1,055
108
14
13
$1,253
132
10
14
$1,297
137
9
15
$1,147
137
8
16
$1,080
115
12
17
$1,550
182
8
18
$1,047
156
6...
Use the given data to construct a confidence interval of the requested level. x = 113,...
Use the given data to construct a confidence interval of the
requested level. x = 113, n = 176, confidence level 98% Group of
answer choices 0.558 < p < 0.726 0.571 < p < 0.713
0.446 < p < 0.838 0.606 < p < 0.678
A 95% confidence interval contains 5. If the confidence level is increased to 99%, will the...
A 95% confidence interval contains 5. If the confidence level is
increased to 99%, will the new interval contain 5?
Yes
No
Unable to determine
A confidence interval, at the 95% confidence level, will be used to answer the question, "What...
A confidence interval, at the 95% confidence level, will be used
to answer the question, "What is the mean annual salary (in US
dollars) of a Tesla car owner?" Data was collected from
36 Tesla owners across the US. The mean annual salary of those 36
Tesla owners was $254000. The standard deviation of ALL
Tesla owners is known to be $1057.
a) The value at the center of the confidence interval
represents what quantity? Choose an option from the list
and type its...
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