Answer:
do you have a picture or something?
Answer:
a)
b) For this case since the value 32.5 is in the confidence interval obtained then we can't conclude that the statement by Nielsen is wrong
Step-by-step explanation:
Information given
represent the sample mean
population mean (variable of interest)
s=23.1 represent the sample standard deviation
n=75 represent the sample size
Part a
The confidence interval for the mean is given by the following formula:
(1)
The degrees of freedom are given by:
Since the Confidence is 0.95 or 95%, the value of and and the critical value would be
Now we have everything in order to replace into formula (1):
Part b
For this case since the value 32.5 is in the confidence interval obtained then we can't conclude that the statement by Nielsen is wrong
Answer:
Hello!The answer would be D-(x-8) and (x-3)
Step-by-step explanation:
Your welcome :)
If im correct the answer would be 4, hope i could help out.
Let the two numbers be x and y, then
xy = 99 . . . (1)
x + y = -34 . . . (2)
From (2), x = -34 - y . . . (3)
Putting (3) into (1), gives
(-34 - y)y = 99
-34y - y^2 = 99
y^2 + 34y + 99 = 0
Therefore, the two numbers are
and