There are 180 students participating in after school activities. Of those students 40% are boys . How many girls are participati
1 answer:
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Answer:
3
Step-by-step explanation:
This is a cube root so think what times what times what is 27?
3 x 3 x 3 = 27 so the answer is 3
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Answer:
There is evidence for the claim that less than 10% of the test results are wrong
Step-by-step explanation:
Given that the company Drug Test Success provides a "1-Panel-THC" test for marihuana usage.
Among 300 tested subjects, results from 27 subjects were wrong (either a false positive or a false negative.)
Sample proportion =
H0: p = 0.10
Ha: p <0.10
(left tailed test)
p difference = 0.09-0.10 = -0.01
Std error =
z statistic = -1.9245
p value = 0.027
Since p <0.05 we reject H0
There is evidence for the claim that less than 10% of the test results are wrong