Answer:
Ok so first of all we know that 1% or 1/100 people are allergic to bee stings. In this class their is 25 people and the change of one of them being alergic so 1/25 this is 4 time 1/00 so
4%
Hope This Helps!!!
Answer:
b
Step-by-step explanation:
sin θ=√(1-cos²θ)=√(1-9/25)=√(16/25)=4/5
sin 2θ=2sin θ × cos θ=2×3/5×4/5=24/25
Answer:
- 0.83
Step-by-step explanation:
just add the recurring bar on top of the 3 and it should be correct
Answer:
123 - 94 - 7
Step-by-step explanation:
Answer:
Step-by-step explanation:
Put hypotheses as:
(Two tailed test at 4%)
Since population std deviation is given we can do Z test.
Test statistic t = mean diff/se = 
p value=0.075
Since p >0.04 our alpha, we accept null hypothesis.
At alphaequals0.04, we cannot reject the company's claim
