In 1965 a nationwide survey revealed that U.S. grade school children spent an average of = 8.2

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In 1965 a nationwide survey revealed that U.S. grade school children spent an average of = 8.2 hours per week doing homework. The distribution of homework times was normal with = 3.6 hours. In 2000 a sample of n=100 students was given the same survey. For this sample, the average number of homework hours was M = 7.1

Posted Date: May 19, 2024 10:08 AM

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In 1965 a nationwide survey revealed that U.S. grade school children spent an average of = 8.2

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