Answer:3/5
Step-by-step explanation:
20 papers in total
12 boy papers
12/20
simplified to 3/5
Answer:
112 cupcakes were mocha
Step-by-step explanation:
44% of 200 is 88 then subtract 88 from 200. hope this helps
The answer is x=42.8+- (plus or minus) 12
So he should either have $30.80 or $44.80 left
ANSWER:
EXPLANATION:
A simple random sample of size has mean and standard deviation. Construct a confidence interval for the population mean. The parameter is the population The correct method to find the confidence interval is the method.
The sample size is not given. Mean and Standard Deviation are not given.
To construct a confidence interval for the population mean, first find out the margin of error of the sample mean. This is why you need a confidence interval. If you are 90% confident that the population mean lies somewhere around the sample mean then you construct a 90% confidence interval.
This is equivalent to an alpha level of 0.10
If you are 95% sure that the population mean lies somewhere around the sample mean, your alpha level will be 0.05
In summary, get the values for sample size (n), sample mean, and sample standard deviation.
Make use of a degrees of freedom of (n-1).
