A researcher is checking to see if a diet works. They will look at a sample...
A researcher is checking to see if a diet works. They will look at a sample of 100 and assume ? = 12. If they are testing H0 : µ = 150 against H1 : µ < 150 at the 1% level, then:
a) find the critical values that give a rejection test:
b) find the power of the test if the real mean is 146.
For part A, I got 147.204 and for part B, I got that power is .8413. However, I was unsure of whether or not I did these questions properly.
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A researcher is checking to see if a diet works. They will look
at a sample...
Assume that a simple random sample has been selected from a normally distributed population and test...
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Consider the hypothesis test H0:μ1=μ2 against H1:μ1<μ2 with
known variances σ1=10 and σ2=5. Suppose that sample sizes n1=10 and
n2=15 and that x¯1=14.2 and x¯2=19.7. Use α=0.05.
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Identify the test statistic=_____ (Round to two decimal
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The P-value is=_____ (Round to three decimal
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Consider the hypothesis test H0:μ1=μ2 against H1:μ1<μ2 with
known variances σ1=10 and σ2=5. Suppose that sample sizes n1=10 and
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Font Paragraph Styles Chapter 10 Section 1 Additional Problem 1 Consider the hypothesis test Ho : = 12 against HI : <H2 with known variances = 10 and 2 = 5. Suppose that sample sizes nj = 10 and 12 = 15 and that I = 14.2 and 72 = 19.7. Use a...
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A.
Identify the test statistic=_____ (Round to two decimal
places)
The P-value is=_____ (Round to three decimal
places)
What is the concluion for this hypothesis
test?
A. Fail to reject Upper H0. There is sufficient evidence to
warrant rejection of the claim that the variation of maximal skull
breadths in 4000 B.C. is the same as the variation in A.D. 150.
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