The 99% confidence interval for the true mean is given by:

where:

is the sample mean = 69.7

is the standard deviation = 2.8

is the test statistics = 2.58 for for 99% confidentce interval.
n is the sample size = 772.
Therefore, the 99% confidence interval is:
-6.6.-5/6.0.6,2/3"""""""""""""""""
Heres oyur answer i hope that can help u
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Answer:
If all the sides of the triangle are different, its scalene or else it could ne obtuse not sureee
If you would like to know how many square feet of the wall will be blue, you can calculate this using the following steps:
8 2/5 feet high * 16 2/3 feet long = 8 2/5 * 16 2/3 = 42/5 * 50/3 = 140 square feet
1/2 * 140 = 140/2 = 70 square feet
<span>The correct result would be 70 square feet.</span>