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Mathematics, 13.11.2019 05:31 Lilleypad07
Gibbs baby food company wishes to compare the weight gain of infants using its brand versus its competitor's. a sample of 40 babies using the gibbs products revealed a mean weight gain of 7.6 pounds in the first three months after birth. for the gibbs brand, the population standard deviation of the sample is 2.3 pounds. a sample of 55 babies using the competitor's brand revealed a mean increase in weight of 8.1 pounds. the population standard deviation is 2.9 pounds.
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