A chicken farmer knows from experience that the average weight of five-month-old chickens is 2.15 kg. The weights follow a normal distribution. To try to increase the average weight of these birds, a supplement was added to the feed. In a sample of five-month-old chickens, the following weights in Kg were obtained: 2.21, 2.18, 2.15, 2.17, 2.14, 2.22, 2.19, 2.17, 2.16 At a significance level of 0.01, can you be sure that the supplement has increased the average weight of the chickens? Choose 1.The correct conclusion 2.The correct interpretation Select one: to) 1.H0 is rejected 2. There is insufficient evidence to consider that the supplement contributes to weight gain, on average, in chickens, with 99% confidence b) 1.H0 is rejected 2. There is sufficient evidence to consider, with 99% confidence, that the supplement contributes to weight gain, on average, in chickens. c) 1.H0 is not rejected 2. There is insufficient evidence to consider that the supplement contributes to weight gain, on average, in chickens, with 99% confidence d) 1.H0 is not rejected 2. There is sufficient evidence to consider, with 99% confidence, that the supplement contributes to weight gain, on average, in chickens.
A chicken farmer knows from experience that the average weight of five-month-old chickens is 2.15 kg. The weights follow a
To try to increase the average weight of these birds, a supplement was added to the feed.
In a sample of five-month-old chickens, the following weights in Kg were obtained:
2.21, 2.18, 2.15, 2.17, 2.14, 2.22, 2.19, 2.17, 2.16
At a significance level of 0.01, can you be sure that the supplement has increased the average weight of the chickens?
Choose
1.The correct conclusion
2.The correct interpretation
Select one:
to)
1.H0 is rejected
2. There is insufficient evidence to consider that the supplement contributes to weight gain, on average, in chickens, with 99% confidence
b)
1.H0 is rejected
2. There is sufficient evidence to consider, with 99% confidence, that the supplement contributes to weight gain, on average, in chickens.
c)
1.H0 is not rejected
2. There is insufficient evidence to consider that the supplement contributes to weight gain, on average, in chickens, with 99% confidence
d)
1.H0 is not rejected
2. There is sufficient evidence to consider, with 99% confidence, that the supplement contributes to weight gain, on average, in chickens.
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