Suppose That a Random Sample of 100 Observations Was Drawn

question 55

Essay

Suppose that a random sample of 100 observations was drawn from a population. After calculating the mean and standard deviation, each observation was standardised and the number of observations in each of the intervals below was counted. Can we infer at the 10% significance level that the data were drawn from a normal population? $$\begin{array} { | c | c | } \hline \text { Intervals } & \text { Frequency } \\\hline Z \leq - 1 & 12 \\\hline - 1 < Z \leq 0 & 32 \\\hline 0 < Z \leq 1 & 36 \\\hline Z > 1 & 20 \\\hline\end{array}$$

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Definitions:

Net Income

The financial gain a company realizes after all deductions, including taxes and costs, are taken from revenue.

Total Assets

The sum of all assets owned by an individual or organization, including cash, investments, property, and other valuables, representing the total resources available for use in generating future income.

Total Asset Turnover

A financial efficiency ratio that measures how effectively a company uses its assets to generate sales revenue.