The average household size in a certain region several years ago was 4.3 people. A census worker wishes to test, at the 5% level of significance, whether it is different now. A random sample of 100 households will be used for the test. The value of the sample mean was 4.02 people with a sample standard deviation 0.98 people. What is the p-value for this test? H:µ= 4.3 H, : µ ± 4.3 O +2.86 O 0.9979 O 0.0042 O 0.0021 O -2.86

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