Answer:
I believe that the tip would be $7.50
Step-by-step explanation:
Well I'm assuming that they want us to find 15% of 50. And 15% of 50 is 7.5
Meaning that the answer is A
Answer:3
Step-by-step explanation:
48,301* . 51,702 you wrote the number incorrectly
Answer:
b. remains unchanged
Step-by-step explanation:
Formula for standard error of mean is;
SE = σ/√n
From the above, we can see that the standard error of mean is independent of the confidence coefficient as it doesn't affect the SE.
Now, we are given that;
random sample; n = 100
Standard deviation; σ = 1
Thus;
SE = 1/√100
SE = 1/10
Now, even if the confidence coefficient is reduced, we can see that it has no impact on the standard error of mean.
Thus, SE remains unchanged.
