Question

5. A sample of 50 impossible whoppersandwiches have a mean fat content of 37.6g and standard deviation of 4.9g . A sample of 58 regular whopper sandwiches have a mean fat content of 39.3g and standard deviation of 2.7g. Use a 0.05 significance level to test the claim that the mean fat content for the impossible whopper is less than the mean fat content for the regular whopper.

(Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal.)

USE A 0.05 SIGNIFICANCE LEVEL TO TEST THE CLAIM:

H0: μ1____ μ2For Q17(circle one: equal to, less than, greater than, not equal to )

H1 : μ1____ μ2For Q18(circle one: equal to, less than, greater than, not equal to )

Test Statistic t=__________ Q19(ROUND TO 2 DECIMAL PLACES)

P-value: p =_____________ Q20(ROUND TO 4 DECIMAL PLACES)

Decision/Conclusion: _________________________________Q21(CIRCLE ONE BELOW) Reject H0, There is sufficient evidence to warrant the rejection of the claim.

OR

Fail to Reject H0, There is not sufficient evidence to warrant the rejection of the claim.

Construct an appropriate confidence interval ( ______________ Q22, _______________ Q23) (ROUND TO 3 DECIMAL PLACES)

Answer #1

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Test at the 0.1 significance level.
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p=21.21p=21.21
μ>21.21μ>21.21
μ=21.21μ=21.21
μ<21.21μ<21.21
p<21.21p<21.21
p>21.21p>21.21
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(a) L/S 0.05 HW 11-1
(b) L/S 0.01 HW 11-2
A fast food chain claims that the average fat content in
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You wish to test the following claim (HaHa) at a significance level
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Ho:μ=77.2Ho:μ=77.2
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You believe the population is normally distributed, but you do not
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You wish to test the claim that the first population mean is
less than the second population mean at a significance level of
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Ho:μ1=μ2Ho:μ1=μ2
Ha:μ1<μ2Ha:μ1<μ2
You obtain the following two samples of data.
Sample #1
Sample #2
69.4
46.4
38.8
62.3
53.2
55.4
55.8
53.6
33.7
36.6
54.3
89.6
53.6
59.5
55.8
68.0
65.0
64.9
57.1
74.0
63.1
64.7
74.7
65.0
72.4
74.7
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test statistic = Round to 4 decimal
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Ho:?=69.7
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What is the test statistic for this sample? (Report answer accurate
to three decimal places.)
test statistic =
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p-value...

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Use Excel to test whether the mean fat content is different from
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, , n = 18, H0: μ = 10, Ha: μ < 10, α =
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Group of answer choices
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test statistic =
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test statistic =
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Ho:?=73.1
Ha:??73.1
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