F(x) = | 3x +4 |+2 g(x)=4 Find (f +g)(x)
1 answer:
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Answer:
76
Step-by-step explanation:
Survey response
Those who liked the proposed plan=380 persons
Those who didn't like the proposed plan=120 persons
We assume that the these are the only people who participated, with those who never took sides being zero
Total number of people surveyed=380 persons+120 persons=500 persons
Percentage of those who liked =
Therefore, the percentage that liked the plan is 76%
Answer:
Explained below.
Step-by-step explanation:
(1)
The confidence level is, 91%.
Compute the value of α as follows:
(2)
As the population standard deviation is provided, i.e. <em>σ</em> = 256 psi, the <em>z</em> value would be appropriate.
The <em>z</em> value for α = 0.09 is,
<em>z</em> = 1.69
(3)
Compute the 91% confidence interval as follows:
(4)
The 91% confidence interval for population mean implies that there is a 0.91 probability that the true value of the mean is included in the interval, (2942.29, 3057.71) psi.