The 99% Confidence interval for the mean sale time for all homes in the neighborhood is:87.857, 112.143.
<h3>Confidence interval</h3>
a. The assumption is: Assume that the population has a normal distribution.
The CI is exact for the normal populations and for small samples the z-interval method should be used in a situation where the variable is normally distributed.
b. Confidence interval:
CI=Sample mean±z-score×Standard deviation/√Size of the sample
CI=100-2.576×20/√18, 100+2.576×20/√18
CI=100-12.143, 100+12.143
CI=87.857, 112.143
Therefore the 99% Confidence interval is 87.857, 112.143.
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Answer: choice D) 5
Step-by-step explanation:
22.5/9=2.5
23.5/2.5=9.4
9.4-4.4=5=x
Answer:
6.54lbs per acre
Step-by-step explanation:
72/11
To solve this let our write this fraction in terms.

/

So now let change this problem as a multiplication problem. To change this to multiplication problem we have to flip our second term

So, now let's simplify the terms. So we get
Thus this is our final answer.
Answer: 14n + 6
Step-by-step explanation: Product is multiplication so 14 times a number or n is 14n, increased by 6 so 14n+6