18+5+(5-3)x6 divided by 3-2
2 answers:
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Answer:
the answer is A
Step-by-step explanation:
divide each of the second numbers by the first
that is
and so on
All the answers you get will be equal to 0.33333 or 1/3
Answer: True.
Step-by-step explanation:
Let be the population mean.
Given : Null hypothesis =
Alternative hypothesis =
Since , the alternative hypothesis is left-tailed, then the test is a left-tailed test.
The sample mean () of the 80 students who were weighed was found to be 142 pounds and the p-value was 0.03.
We know that p-value gives that probability that if the null hypothesis is true, than the sample mean () will be at least as small as the actual mean (
).
It means that if the mean of all students’ weight is 160 lbs, then there would be only a 3% chance that a randomly selected group of 80 students would have a mean weight of less than 142 lbs.
Hence, the answer is "True".