Mathematics, 28.08.2021 04:20 asyamelissa01
Suppose an economist wishes to estimate the mean commute time of workers in Westchester County. The economist obtains a random sample of 31 commutes in Westchester County and finds the sample mean to be 31.2 minutes and the sample standard deviation to be 12.1 minutes.
Required:
Construct and interpret a 90% confidence interval for the mean commute time in Westchester County.
Answers: 3
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Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36
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Suppose an economist wishes to estimate the mean commute time of workers in Westchester County. The...
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