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A coin is tossed 73 times and 30 heads are observed. Would we infer that this...

A coin is tossed 73 times and 30 heads are observed. Would we infer that this is a fair coin? Use a 97% level confidence interval to base your inference.
The sample statistic for the proportion of heads is:  (3 decimals)

The standard error in this estimate is:  (3 decimals)

The correct z* value for a 97% level confidence interval is:  (3 decimals)

The lower limit of the confidence interval is:  (3 decimals)

The upper limit of the confidence interval is:  (3 decimals)
Based on this confidence interval, it is  ---Select--- not plausible  plausible that the coin is fair.
How would a 99% confidence interval compare to the 97% you constructed?

They would have different centers.There is no way to tell how they would compare.They would have the same center.The 99% CI would be wider.The 99% CI would be narrower.

Math   Statistics-And-Probability   
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