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The following data represent the maximal head measurements (across the top of the skull) in millimeters of 15 Etruscans (inhabitants of ancient Etruria).
152 147 126 140 135 139 149 140
142 147 132 148 146 143 137
(a) Calculate an unbiased estimate σˆ 2 of the population variance.
(b) Give approximate 95% con?dence interval for the population variance.
(c) Interpret your results and test for normality.
What measurements assesses the amount of variance of change in the dependent variable reflected by changes in the independent variable?
Show that marginal cost and marginal revenue are given by? Show that the profit maximizing quantity which equates marginal revenue and marginal cost is?
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