Answer:
The 99% confidence interval for the population mean is 22.96 to 26.64
Step-by-step explanation:
Consider the provided information,
A sample of 49 customers. Assume a population standard deviation of $5. If the sample mean is $24.80,
The confidence interval if 99%.
Thus, 1-α=0.99
α=0.01
Now we need to determine 
Now by using z score table we find that 
The boundaries of the confidence interval are:
Hence, the 99% confidence interval for the population mean is 22.96 to 26.64
Answer:
(3/26, 38/13)
Step-by-step explanation:
I hope I solved it right and it helped you somehow
If you have any questions about the way I solved it, don't hesitate to ask :)
27a² + 18ax + 45a = 9a(3a + 2x + 5)
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This missing part is 3a + 2x + 5.
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Answer:
There wasn't really a question here but for both the answers is
for year 2 we got 12 sales
for year 3 we got 18 sales
Step-by-step explanation:
since the first year Mr.Jackson sold 3 computer monitors then in the second year he must've multiplied the times he had sold it which means 4 x 3 which equals 12
as well as the third year, on the third year he sold 6 times the first year so it means 6 x 3 which equals 18
