Maria class recycled 2 2/8 boxes of paper in a month if they recycled another 10 4/8 boxes the next month was in the total amoun
2 answers:
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Answer:
The confidence interval for the true mean calorie content is
Step-by-step explanation:
In this problem we know the mean and standard deviation fo the sample, so we can compute the CI like this:
We need to determine t for 10-1=9 degrees of freedom and 99% confidence level. We look up in the t-table and the value for t is 3.2498.
Then we can calculate the limits of the CI:
Answer:
£9000
Step-by-step explanation:
= £10 000×<u> </u><u> </u><u>5</u><u> </u><u> </u>×2
100
= 1000
= £10 000-1000
= £9000
