jrfranckowiak
28.06.2019 •
Mathematics
The mean number of flight hours for continental airline pilots is 49 hours per month. assume that this mean was based on a sample of 100 continental pilots and that the sample standard deviation was 11.5 hours. (a) calculate the margin of error for a 95% confidence interval. (b) calculate the upper bound for a 95% confidence interval.
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Ответ:
Answer with explanation:
(a)
Mean number of flight hours for Continental Airline pilots = 49 hours per month
Total Sample Size =100
Standard Deviation =11.5 Hours
Margin of error for a 95% confidence interval
(b)
The Range of values for a 95% confidence interval
⇒ Mean number of flight + Margin of Error ≤ Confidence interval ≤ Mean number of flight - Margin of Error
⇒ 49+0.97 ≤ Confidence interval ≤ 49-0.97
⇒ 49.97 ≤ Confidence interval ≤48.03
Upper Bound = 49.97
Ответ:
y=mx+b is the slope intercept form.
Step-by-step explanation:
m is the slope (how the line is moving across the graph)
b is y-intercept (where the line crosses the y axis)
Hope this helps!