Question
In a survey of 1070 Canadian adults, 700 say that the energy situation in Canada is very or fairly serious. 1. Find the point estimate
In a survey of 1070 Canadian adults, 700 say that the energy situation in Canada is very or fairly serious. 1. Find the point estimate for the population proportion.
0.6542
| You are correct. Your receipt no. is 157-9102 | Previous Tries |
2. Construct a 95% confidence interval for the population proportion.
(a) The critical value:
1.9600
| You are correct. Your receipt no. is 157-3114 | Previous Tries |
(b) The margin of error:
0.0285
| You are correct. Your receipt no. is 157-4108 | Previous Tries |
(c) The lower limit of the interval:
0.6257
| You are correct. Your receipt no. is 157-9264 | Previous Tries |
(d) The upper limit of the interval:
0.6827
| You are correct. Your receipt no. is 157-6535 | Previous Tries |
3. find the minimum sample size needed to estimate the population proportion at the 99% confidence level in order to ensure that the estimate is accurate within 4 % of the population proportion.
(a) The critical value:
2.5760
| You are correct. Your receipt no. is 157-3505 | Previous Tries |
(b) The margin of error:
0.0400
| You are correct. Your receipt no. is 157-7298 | Previous Tries |
(c) The sample size:???
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Finite Mathematics and Its Applications
Authors: Larry J. Goldstein, David I. Schneider, Martha J. Siegel, Steven Hair
12th edition
978-0134768588, 9780134437767, 134768582, 134437764, 978-0134768632
