Question
Average adult Americans are about one inch taller, but nearly a whopping 29 pounds heavier than they were in 1960, according to a new report
"Average adult Americans are about one inch taller, but nearly a whopping 29 pounds heavier than they were in 1960, according to a new report from the Centers for Disease Control and Prevention (CDC). The bad news, says CDC is that average BMI (body mass index, a weight-for-height formula used to measure obesity) has increased among adults from approximately 29 in 1960 to 28 in 2002."Boston is considered one of America's healthiest cities - is the weight gain since 1960 similar in Boston?A sample of n=29 adults suggested a mean increase of 19 pounds with a standard deviation of 6.8 pounds.Is Boston statistically significantly different in terms of weight gain since 1960?Run the appropriate test at a 5% level of significance.
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