Answer:
Yes
Step-by-step explanation:
First, suppose that nothing has changed, and possibility p is still 0.56. It's our null hypothesis. Now, we've got Bernoulli distribution, but 30 is big enough to consider Gaussian distribution instead.
It has mean μ= np = 30×0.56=16.8
standard deviation s = √npq
sqrt(30×0.56×(1-0.56)) = 2.71
So 21 is (21-16.8)/2.71 = 1.5494 standard deviations above the mean. So the level increased with a ˜ 0.005 level of significance, and there is sufficient evidence.
Answer:
e/g+f/g
Step-by-step explanation:
(e+f)/g can be split up. e/g+f/g is equal to (e+f)/g so your answer is e/g +f/g
Answer:
a
Step-by-step explanation:
Answer: Isosceles.
An isosceles triangle is one with two matching side lengths.
Step-by-step explanation:
the answer to this question would be 12 and 1/8
