Answer:
(233.8436 ; 271.0564)
Yes
Step-by-step explanation:
Given :
Sample mean, xbar = 252.45
Sample standard deviation, s = 74.50
Sample size, n = 64
α = 0.05
The confidence interval :
Mean ± margin of error
Margin of Error = tα/2 * s/√n
df = n - 1 = 64 - 1 = 63
t(α/2, df = 63) = 1.998
Margin of Error = 1.998 * 74.50/√64
Margin of Error = 18.6064
The confidence interval :
252.45 ± 18.6064
(233.8436 ; 271.0564)
Comparing the confidence interval value and the mean value reported by the American Automobile Association ;it can be concluded that the mean reported by the American Automobile Association differ from the mean spent at Niagara Fall as 215.60 falls below the confidence interval.
The answer is 14.58.
I hope this helped, if not, please leave a comment below.
Answer:
It signifies the number of dogs that bella feeds. This is 100% correct
Step-by-step explanation:
Assuming you want the inverse of f(x)=x²-2,
f(x)=x²-2
repalce f(x) with y
y=x²-2
switch x and y
x=y²-2
solve for y
x=y²-2
x+2=y²
√(x+2)=y
replace y with f⁻¹(x)
f⁻¹(x)=√(x+2)
the inverse is √(x+2)
Answer:
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