Author Question: A confidence interval was used to estimate the proportion of statistics students who are female. A ... (Read 57 times)

sheilaspns · **on:** Feb 14, 2020

Question 1

A confidence interval was used to estimate the proportion of statistics students who are female. A random sample of 72 statistics students generated the following 99% confidence interval:

State the level of reliability used to create the confidence interval.
◦ 64.2%
◦ 72%
◦ between 43.8% and 64.2%
◦ 99%

Question 2

A confidence interval was used to estimate the proportion of statistics students who are female. A random sample of 72 statistics students generated the following 90% confidence interval:

Based on the interval, is the population proportion of females equal to 59%?
◦ No, the proportion is 54%.
◦ Maybe. 59% is a believable value of the population proportion based on the information above.
◦ No, and we are 90% sure of it.
◦ Yes, and we are 90% sure of it.

leannegxo · **Reply #1 on:** Feb 14, 2020

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