Answer:
H0: 
H1: 
The statistic would be given by:
Step-by-step explanation:
Information given
represent the sample size 1
represent the sample size 2
represent the sample variance 1
represent the sample variance 2
The statistic to check the hypothesis is given by:
Hypothesis to test
We want to test if the two variances are equal, so the system of hypothesis are:
H0:
H1:
The statistic would be given by:
Uhhh its B.
hope I’m right, hope I helped :)
Happy New Years!
Answer:
t = 4
Step-by-step explanation:
Anything divided by itself is 1
Answer:
options?.................
Answer:
Step-by-step explanation:
a)
p(d) - probability of a rivet being defective
p(r) - probability of seam needing to be reworked
The probability of the seem needing to be reworked is equal to the probability that ANY of 24 rivets is defective
Thus the probability that none of the 25 rivets is defective is 1-p(r)
p(r) = 16%, thus 1-p(r) = 84%
1-p(r) = (1-p(d))^24
0.84 = (1-p(d))^24
0.84^(1/24) = 1-p(d)
==> 1-p(d) = 0.9927615998
==> p(d) = 1-0.9927
==> p(d) = 0.0073
b) given p(r) = 8%, thus 1-p(r) = 92%
1-p(r) = (1-p(d))^24
0.92 = (1-p(d))^24
0.92^(1/24) = 1-p(d)
==> 1-p(d) = 0.99653179446
==> p(d) = 1-0.9965
==> p(d) = 0.0035
