Suppose that we have a population of people, 10% of whom are known to be insane. Suppose that we then randomly select two people
2 answers:
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Answer:
It goes like this
Step-by-step explanation:
U can see the sequence
Plug each x-value into the equation to get the y-value:
(2,-1)
(0,-2)
Answer:
False
Step-by-step explanation:
given that a race car driver tested his car for time from 0 to 60 mph, and in 20 tests obtained an average of 4.85 seconds with a standard deviation of 1.47 seconds.
Sample size n = 20
since population standard deviation is not known, we can use t critical value for finding out the confidence interval
df=19
t critical = 2.045
Margin of error =
conidence interval = Mean±Margin of error
=
The given confidence interval is (4.52, 5.18)
Hence the statement is false.