Answer:
Step-by-step explanation:
Information provided
n=100 represent the random sample taken
X=21 represent the number of bags overfilled
estimated proportion of overfilled bags
is the value that we want to test
z would represent the statistic
Hypothesis
We need to conduct a hypothesis in order to test if the true proportion of overfilled bags is higher than 0.15.:
Null hypothesis:
Alternative hypothesis:
The statistic for this case is:
(1)
And replacing the info given we got:
x=-18 if its right please give 5 stars so I can rankup
No . but she can buy 2 of the books but not all 3
<u>Answer:</u>
The correct answer option is 0.2.
<u>Step-by-step explanation:</u>
We are given that there are 3 red marbles and 3 green marbles in an opaque bag.
If two marbles are chosen one after one without replacement, we are to find the probability of getting both green marbles.
P (1st green marble) = 
P (2nd green marble) = 
P (both green marbles) = 
= 0.2
