Answer:
D
Step-by-step explanation:
A politician running for mayor in her city wants to know her chances of winning an upcoming
2 answers:
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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
Since the cost of the spray paint is approx $1.50,
The range for the cost of the spray paint is'
Therefore, the coach budget should be between,
Hence, the budget of the coach should be between $1.45 and $1.55.