Answer:
-4, -3, 0, 2
Step-by-step explanation:
Well to add a tax to something you'd times it in. In this case is price of shoes times 0.05 would get you your answer.
Answer:
Step-by-step explanation:
Given that in order to efficiently bid on a contract, a contractor wants to be 95% confident that his error is less than two hours in estimating the average time it takes to install tile flooring.
Std deviation =4.5 errors
95% confidence interval = Mean±1.96*std dev
Hence we have
Sample size should be 20.
We can do cross multiplication:
=
1.5n=5×1.8
n=
n=6
check:
=
both decimals are equivalent
0.8333...=0.8333...
Here is the working and the answer