2. A provincial health center says that hey believe that people in their province are becoming less healthy with an average body mass index (BMI) of 23.5 kg/m2 with an average
body mass of 4.5 kg/m2. A recent survey is conducted involving a random sample of 60
residents and their average BMI is 22.5 kg/m2. Do you think that the health center has a much
higher average BMI? Use the level of significance a = 0.05.
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