Answer: 547
Step-by-step explanation: The margin of error formulae is given below as
Margin of error = critical value ×(σ/√n)
Where σ = standard deviation and n is the sample size.
From our question, margin of error = 0.08
Variance is 1.691,
hence σ = √variance = √1.691
= 1.3.
We will be using a z test for our critical value this is because a soft drink manufacturer will always produce drinks more than 30 in numbers.
The critical value for a 85% confidence interval is 1.44.
Hence critical value is 1.44.
By substituting the parameters, we have that
0.08 = 1.44 × 1.3/ √n
0.08 = 1.873/ √n
By cross multiplying
0.08 × √n = 1.873
√n = 1.873/ 0.08
√n = 23.41
n = (23.41)²
n = 547.
Answer:
plu this in on MATHHHHHHHHHH WAYYYYYYYYY (i cant put in the actual site) but use it it will tell u answers!
Step-by-step explanation:
Answer:
Sorry, the question doesn't make sense. But Measure of angle A is28 degrees. what are you trying to figure out for just A and C?
Step-by-step explanation:
Answer:
Figures A, C, and D. B isn't one since it is curved
# 3 is .4 because u multiply .2*.2
