Answer:
The most conservative sample size is 2401.
Step-by-step explanation:
We are given the following in the question:
We are not given any approximation of s]ample proportion, thus,
We have to construct a 95% confidence interval.
Margin of error = 2% = 0.02
Formula for margin of error =
Putting values, we get,
Thus, the most conservative sample size is 2401.
The answer is about 28-30 people who were surveyed.
Answer:
24 minutes
Step-by-step explanation:
Working at the same speed, the ratio of time to length is the same:
time/length = t/12 = 3/(1.5)
t = 12(3/1.5) = 12(2) = 24
It will take Mark 24 minutes to make a 12-inch bracelet.
Answer:
15m
Step-by-step explanation:
perimeter=total distance round a figure
40m=11m+16m+2n+3m
40m=30m+2n
50m-30m=2n. 30=2n. (divide both sides by 2 to get). n=15m
Answer:
x² - 4x - 21 = 0
Step-by-step explanation:
