Answer:
a. What is the standard error of the sample proportion who find this offer attractive? = 0.0351
b. What is the probability that the sample proportion is more than 0.15? = 0.9222
c. What is the probability that the sample proportion is between 0.18 and 0.22? = 0.4314
Step-by-step explanation:
see attachment for explanation
Answer:
b= fifteen over four
Step-by-step explanation:
b= 1/4 + 3 1/2
In conducting a goodness of fit test, a requirement is that the expected frequency must be at least ten for each category.
<h3>What is a
goodness of fit test?</h3>
In relation to the statistical model, the test tells how well it fits a set of observations.
The measures of the goodness of fit summarize the discrepancy between observed values and the values expected under the model in question.
Also, when conducting a goodness of fit test, a requirement is that the expected frequency must be at least ten for each category.
Therefore, the Option B is correct,
Read more about goodness of fit test
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Answer:
3
Step-by-step explanation:
2×-3y = 12 ( multiply whit 4)
3x + 4y =1 (multiply whit 3 )
8x -12y =48
9X+ 12y = 3
if you add this equations
17X =51
X= 51 / 17
x=3
Answer:
(n-1)/2n
Step-by-step explanation:
½(1 - 1/n)
(n-1)/2n
