A consumer advocate was hired to test the accuracy of radon detectors sold to homeowners. He...
A consumer advocate was hired to test the accuracy of radon detectors sold to homeowners. He placed 10 detectors in a chamber and exposed them to 105 picocuries per liter of radon and recorded the reading from each detector. He found a p-value of 0.1554 while testing the claim that the mean reading of all detectors of this type is different from 105 picocuries per liter.
a) If he used a 5% level of significance, should he reject or
fail to reject H0?
b) Write the conclusion to this hypothesis test.
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A consumer advocate was hired to test the accuracy of radon
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A.
Compute the test statistic x2=_____ (Round to three
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Find the P-value=______ (Round to three decimal places)
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For the previous problem, what is the test statistic? A random sample of 12 radon detectors of a certain type was selected, and each was exposed to 100 pCi/L of radon. For this sample, the mean was 97.08 and the variance was 37.21. At the 5% significance level, do this data suggest that the population mean reading under these conditions differs from 100? Give the appropriate hypotheses. 1= -2.92 t = -0.272 z = -0.078 H: H = 100 H:...
5)
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In a study of the accuracy of fast food drive-through orders, one restaurant had 31 orders that were not accurate among 381 orders observed. Use a 0.10 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable? Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A Hop#0.1 p=0.1 P0.1 DE 0.1 p=0.1 p> 0.1 D. Ho p0.1...
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A.
Compute the test statistic x2=_____ (Round to three
decimal places)
Find the P-value=______ (Round to three decimal places)
Reject/Fail To reject _____ H0. There is/is not_____ sufficient
evidence to warrant rejection of the claim that pulse rates of
women have a standard deviation equal to 10 beats per minute.
B.
Find the test statistic= x2=_____ (Round to three decimal
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