Answer:
a)
The probability of type I error is 0.5
b)
Type II error is an error committed when we fail to reject a false null hypothesis. The probability of Type II error is beta and 1 -beta gives the power of a test.
Step-by-step explanation:
The probability of a Type I error is the probability of rejecting the null hypothesis when it is actually true. In this case;
pr(x>0 / mu =0)
If the mean is 0 and sigma 1 then x has the standard normal distribution. Now, if x has the standard normal distribution then pr(x>0) = 0.5 since the standard normal distribution curve is symmetric about the mean which in this case is 0.
The answer is -85, negative+nagative=positive
Answer:
The solution is:
Step-by-step explanation:
Given the expression
Solving
so
∵
Therefore, the solution is:
Step-by-step explanation:
344m/s
344 x10 -3)x3600
1238.4km/hr
i hope my answer will help u
<span>Evaluate for x = 2.
Is it divide by 4?
if so then
Answer is D. 8
(12x + 8) /4
=[12 (2) + 8 ]/4
=[ 24 + 8 ]/4
=32/4
=8</span>