A random sample of 41 children (all 5 years of age) was selected and given the Reading test of the WRAT (Wide Range Achievement Test). The sample mean was 20.57 and the estimated standard error of the mean was 1.98. Test whether the sample could be representative of a population whose mean was 23.52.

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The Answer of A random sample of 41 children (all 5 years of age) was selected and given the Reading test of the WRAT (Wide Range Achievement Test). The sample mean was 20.57 and the estimated standard error of the mean was 1.98. Test whether the sample could be representative of a population whose mean was 23.52.

A Random Sample of 41 Children (All 5 Years of Age)