Answer: 3 and 1/2
Step-by-step explanation:
had this question on the quiz
Answer:
A
Step-by-step explanation:
This is really easy if you think and look at the picture.
There were 15 dvds. 1/5 were documentaries.
All you have to do is figure out what 1/5 of 15 is. Yes?
So to find out what 1/5 of 15 is, you divide 15 by 5, and that's your answer.
The answer is 3.
Answer:
z test statistic
Step-by-step explanation:
Given : In a hypothesis test, the claim is μ ≤ 25 while the sample of 34 has a mean of 21 and a population standard deviation of 5.9 from a normally distributed data set.
To Find : In this hypothesis test, would a z test statistic be used or a t test statistic and why?
Solution:
Claim : μ ≤ 25
Sample size = n = 34
Population Standard Deviation = 5.9
Since n > 30 and we are given the standard deviation of population .
So, we will use z test statistics .
Hence In this hypothesis test, z test statistic would be used.