Example 11 compared mean political beliefs (on a 1 to 7 point scale) to the moderate value of 4.0, using GSS data. Test whether the population mean equals 4.00 for females, for whom the sample mean was 3.98 and standard deviation was 1.45 for a sample of size 819. Carry out the five steps of a significance test, reporting and interpreting the P-value in context.
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