What is the value of y? A. 10 B. 110 C. 85 D. 55
2 answers:
You might be interested in
As your testing H0:p=0.79, then you have a two-tailed test.
The p-value at two-tailed test is given by:
Then, you need to check into the standard normal cumulative table to find at which -z you do have a probability of 0.395. Thus:
As you can see in the picture at z=-0.26 you have a P(Z<=-z)=0.3974
And at z=-0.27 you have a P(Z<=-z)=0.3936.
The average of these values is:
Then, you have a probability of 0.395 at a z of:
Then -z=-0.27, thus z=0.27
Answer:
Total songs = 15
Liked songs = 3
Un liked songs = 15-3=12
Find the probability that among the first two songs played
(a) You like both of them.
Probability that among the first two songs played you like both of them =
(b) You like neither of them.
Probability that among the first two songs played you like neither of them =
(c) You like exactly one of them.
Probability that among the first two songs played you like exactly one of them =
(d) Redo (a)-(c) if a song can be replayed before all
(a) You like both of them. Would this be unusual?
Probability that among the first two songs played you like both of them =
(b) You like neither of them.
Probability that among the first two songs played you like neither of them =
(c) You like exactly one of them.
Probability that among the first two songs played you like exactly one of them =