Answer:
Based on the data, if we find moderate/strong evidence against the null hypothesis and conclude the mean arsenic level of the water is greater than 8.0 ppb, we have made ____________.
a correct decision.
Step-by-step explanation:
Since there is enough evidence to conclude that the mean level of arsenic is greater than 8.0 ppb, the correct decision has been made. There is no type I or type II error. The type I error (called a false positive) occurs if we reject the null hypothesis when it is true. Since we have simply rejected the null hypothesis when the alternate hypothesis is true, and the null hypothesis should be rejected, a correct decision has been made.
Answer:
I have tried but I can't sorry friend
Answer:
It's false.
Step-by-step explanation:
Dont ask me! all i know is that no.4 is false and that I learned bar lines and negitives in 5th grade!!
Answer:
c = 30m + 75
Step-by-step explanation:
Because the 75 dollars is only one time you add that to the total. Because it is 30 dollars PER MONTH and m is the number of months you would multiply those two in order to know how much you would be paying!
Hope this helps!
<h3>Answer: width is 10 feet</h3>
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Work Shown:
L = length = 18
W = width = unknown
P = perimeter of rectangle = 56
P = L+L+W+W
P = 2L+2W
P = 2*18+2W ... plug in given length
P = 36+2W
36+2W = P
36+2W = 56 ... plug in given perimeter
36+2W-36 = 56-36 ... subtract 36 from both sides
2W = 20
2W/2 = 20/2 ... divide both sides by 2
W = 10
This rectangle is 10 ft by 18 ft.
As a check,
L+L+W+W = 18+18+10+10 = 36+20 = 56
so we get the proper perimeter
note: this assumes that there is no bit of fencing that goes to waste, there are no gaps, or there are no overlapping portions.
