A list of consecutive integers begins with m and ends with n. If n - m = 66, how many integers are in the list?
1 answer:
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Answer:
b. quadruple the sample size.
Step-by-step explanation:
Given that a 95% confidence is given by (15,20) .
this implies that mean = average of lower and higher bounds of confidence interval =
Margin of error = Upper bound - Mean =
Confidence level = 95%
Critical value = 1.96
Std error =
Std devition = Std error * sqrt n = 6.3775
If we want to reduce margin of error by half we must get margin of error as 1.25
For that std error for same critical value = 0.63775
Std deviation did not change
So sample size only changed which implies that sample size is 4 times the original
b. quadruple the sample size.
Answer:
The length of the arc is centimeters.
Step-by-step explanation:
The length of an arc () with a given central angle is determined by the following expression:
Where:
- Radius, measured in centimeters.
- Central angle, measured in sexagesimal degrees.
Given that and
, then:
The length of the arc is centimeters.