Can you use this data for the following questions? The population standard deviation for heights for 3 inches. We can assume this is the standard deviation for the population for WCCC men.
65, 65, 70, 70, 70, 70, 70, 70, 70, 70, 71, 71,71,71,71,71, 66, 67, 67, 67, 67, 67, 67,67, 68, 68, 68, 69, 69, 69, 69, 69, 69, 72, 72, 72, 73, 73, 74, 74, 74, 74, 76, 76, 76, 77, 78
In Spring 2020, we sampled _____ male students from WCCC and got a mean height of ________ inches (write the entire #; do not round).
The width of my confidence interval is ________ inches. ________ inches(nearest tenth), or the __________ mean, is our point estimate of the mean height of the entire male WCCC student body.
Construct a 92% confidence interval for the mean height of the entire male WCCC student body. As part of your answer, interpret the interval in context.
The width of my confidence interval is ________ inches.
Construct a 98% confidence interval for the mean height of the entire male RCCC student body. As part of your answer, interpret the interval in context.
The width of my confidence interval is _________ inches.
Can you fill in the chart
Confidence Level 
Confidence Interval 
Width of Interval 

92% 

98% 
Which of the confidence intervals are wider and why?
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