Answer:
The 80% confidence interval for difference between two means is (0.85, 1.55).
Step-by-step explanation:
The (1 - <em>α</em>) % confidence interval for difference between two means is:

Given:

Confidence level = 80%

*Use a <em>t</em>-table for the critical value.
Compute the 80% confidence interval for difference between two means as follows:

Thus, the 80% confidence interval for difference between two means is (0.85, 1.55).
If A is equal to 30, and A+B equals 42. That means B equals 12. So, if the value increased with the same rate of change, it would be 54. This is because 30 plus 12 is 42. 42 plus 12 would equal 54.
Answer:
fist bubble i am pretty sure
Step-by-step explanation:
300,000,000+4,000,000+800,000+400
What is the standard deviation of the data set?
6, 4, 9, 5, 5, 4, 5
Round the answer to the tenths place.What is the standard deviation of the data set?
6, 4, 9, 5, 5, 4, 5
Round the answer to the tenths place.
Step-by-step explanation:
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