Using the z-distribution, it is found that the 95% confidence interval for the difference is (-1.3, -0.7).
<h3>What are the mean and the standard error for each sample?</h3>
Considering the data given:
<h3>What is the mean and the standard error for the distribution of differences?</h3>
The mean is the subtraction of the means, hence:
The standard error is the square root of the sum of the variances of each sample, hence:
<h3>What is the confidence interval?</h3>
It is given by:
We have a 95% confidence interval, hence the critical value is of z = 1.96.
Then, the bounds of the interval are given as follows:
More can be learned about the z-distribution at brainly.com/question/25890103
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1 (8/9) = 1.88888888
3 (11/12) = 3<span><span>.9166666667
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3<span>.91666 / </span>1.8888 =
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2.0735294118
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So, she can make 2 batches of cupcakes.
Answer:
I have linked the graph in an image
Step-by-step explanation:
1. Simplify y=2/(x+1)-6
2. Subtract the numbers 1-6=-5
3. = 2/x-5
4. Graph your results
Answer:
7000
Step-by-step explanation:
lets start with 695
9 is the thousand
you check the number next to 9
less then 4 let it rest
more than 5 let it soar
something like that lol
anyways since 5 is next to the 9 we round up from 9 to the next number which is 10
so that changes the whole number to 7000
hope this makes sense!
Red line slope=3/4
Blue line slope=2/3
