Answer:
Male students have a greater median.
Step-by-step explanation:
The median is the bold line (look at the attached image)
The male's median is greater than 60.
The female's median is less than 60.
Hope that helps!
Write and solve a word problem that matches the diagram shown
1 answer:
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Answer:
You must survey 784 air passengers.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
The margin of error is:
95% confidence level
So , z is the value of Z that has a pvalue of
, so
.
Assume that nothing is known about the percentage of passengers who prefer aisle seats.
This means that , which is when the largest sample size will be needed.
Within 3.5 percentage points of the true population percentage.
We have to find n for which M = 0.035. So
You must survey 784 air passengers.