Westfield Junior High is attending a field trip to the planetarium. The planetarium requires students to be placed into groups o
1 answer:
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Let
x-------> Leila 's profit
y------> Jo's profit
we know that
----------> equation
For
<u>Find the value of x</u>
Substitute the value of y in the equation
therefore
<u>the answer is</u>
Leila make in profit
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