Answer:
1) 91
Step-by-step explanation:
28 + 63 = 91
Notice the picture below
no matter what value "y" may have, "x" will always be 1
Answer:
53.13 degrees
Step-by-step explanation:
Simplifying makes a algebric expression easily understandable and solvable.
Answer:
We can be 95% confident that consumers spend between $4.04 and $15.96 less at Store A than the consumers spend at Store B.
Step-by-step explanation:
Confidence Intervals give an estimate as range of values for a statistic concerned at a <em>confidence level</em>.
In this case the statistic is the mean difference between Store A and Store B purchase amounts and the confidence level is 95%.
Confidence Interval can be calculated using M±ME where
- M is the sample mean difference between Store A and Store B purchase amounts
- ME is the margin of error from the mean
