alisonsolis155
22.04.2021 •
Mathematics
The radius of the small circle is 1 cm, and the radius of the large circle is 3 cm. Find the ratio of the area of the small circle to that of the large circle.
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Ответ:
Correct option:
The 95% confidence interval is wider than the 90% confidence interval.
Step-by-step explanation:
The (1 - α)% confidence interval for the population proportion is:
The width of this interval is:
The width of the interval is directly proportional to the critical value.
The critical value of a distribution is based on the confidence level.
Higher the confidence level, higher will be critical value.
The z-critical value for 95% and 90% confidence levels are:
*Use a z-table.
The critical value of z for 95% confidence level is higher than that of 90% confidence level.
So the width of the 95% confidence interval will be more than the 90% confidence interval.
Thus, the correct option is:
"The 95% confidence interval is wider than the 90% confidence interval."