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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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