When a poultry farmer uses his regular feed, the newborn chickens have normally distributed weights with a mean of 61.4 oz. In an experiment with an enriched feed mixture, ten chickens are born with the following weights (in ounces). 65.7, 61.5, 67, 64.1, 67.7, 64.2, 67.1, 66.4, 65.3, 63.4 Use the a = 0.05 significance level to test the claim that the mean weight is higher with the enriched feed.

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When a poultry farmer uses his regular feed, the newborn chickens have
normally distributed weights with a mean of 61.4 oz. In an experiment with an
enriched feed mixture, ten chickens are born with the following weights (in ounces).
65.7, 61.5, 67, 64.1, 67.7, 64.2, 67.1, 66.4, 65.3, 63.4
Use the a = 0.05 significance level to test the claim that the mean weight is higher
with the enriched feed.
The sample mean is a =
The sample standard deviation is s =
Select the correct null and alternative hypotheses:
Ο Α. Η : μ = 61.4,HA : μ < 61.4
OB. Ho μ = 61.4,HA μ ‡ 61.4
( c. H : μ = 61.4,HA : μ > 61.4
OD. None of the above
Select the type of distribution to be used in this question:
OA. Z-distribution
OB. Chi-Square distribution
OC. t-distribution
D. None of the above
The rejection region for this test is:
OA. (-∞, -2.262) U (2.262, ∞)
OB. (-∞, -1.833)
OC. (1.833, ∞)
OD. (2.262, ∞)
OE. (3.25, ∞)
OF. (-∞, -3.25)
OG. (-∞, -3.25) U (3.25, ∞)
OH. (-∞, -2.262)
OI.(-∞, -1.833) U (1.833, ∞)
OJ. None of the above
The test statistic is t =
The conclusion is
A. There is not sufficient evidence to support the claim that with the enriched
feed, the mean weight is greater than 61.4.
OB. There is sufficient evidence to support the claim that with the enriched feed,
the mean weight is greater than 61.4.
Transcribed Image Text:When a poultry farmer uses his regular feed, the newborn chickens have normally distributed weights with a mean of 61.4 oz. In an experiment with an enriched feed mixture, ten chickens are born with the following weights (in ounces). 65.7, 61.5, 67, 64.1, 67.7, 64.2, 67.1, 66.4, 65.3, 63.4 Use the a = 0.05 significance level to test the claim that the mean weight is higher with the enriched feed. The sample mean is a = The sample standard deviation is s = Select the correct null and alternative hypotheses: Ο Α. Η : μ = 61.4,HA : μ < 61.4 OB. Ho μ = 61.4,HA μ ‡ 61.4 ( c. H : μ = 61.4,HA : μ > 61.4 OD. None of the above Select the type of distribution to be used in this question: OA. Z-distribution OB. Chi-Square distribution OC. t-distribution D. None of the above The rejection region for this test is: OA. (-∞, -2.262) U (2.262, ∞) OB. (-∞, -1.833) OC. (1.833, ∞) OD. (2.262, ∞) OE. (3.25, ∞) OF. (-∞, -3.25) OG. (-∞, -3.25) U (3.25, ∞) OH. (-∞, -2.262) OI.(-∞, -1.833) U (1.833, ∞) OJ. None of the above The test statistic is t = The conclusion is A. There is not sufficient evidence to support the claim that with the enriched feed, the mean weight is greater than 61.4. OB. There is sufficient evidence to support the claim that with the enriched feed, the mean weight is greater than 61.4.
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