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In a survey of 1030 Canadian adults, 710 say that the energy situation in Canada is very or fairly
serious.
1. Find the point estimate for the population proportion.
2. Construct a 95% confidence interval for the population proportion.
(a) The critical value:
(b) The margin of error:
(c) The lower limit of the interval:
(d) The upper limit of the interval:
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 5 % of the population
proportion.
(a) The critical value:
(b) The margin of error:
(c) The sample size:Tries 0/5

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