Answer: The size of sample of 193 is needed.
Step-by-step explanation:
Since we have given that
Margin of error = 6%
At 90% confidence level, z = 1.645
Let p = 0.5
and q = 0.5
( because it is the most conservative estimation).
So, using formula, we get :
Hence, the size of sample of 193 is needed.
Answer:
To determine the number of shirts that Lisa can buy, knowing that each one is worth $ 14, that she can spend a maximum of $ 150 and that she will also buy a pair of jeans for $ 58 and a pair of shoes for $ 39, the following calculation must be performed:
(150 - 58 - 39) / 14 = X
53/14 = X
3.78 = X
53 - (14 x 3) = X
11 = X
Therefore, Lisa can buy 3 T-shirts, and she will have 11 dollars left over.
+2.15.
Explanation: subtract 6.3 by 4.15 = 2.15 so you add 2.15
Answer:
The experimental probability of the outcome is 1/4
Step-by-step explanation:
If Samuel's experiment probability was 0.25, this depicts that the experimental probability of the outcome is 1/4, because:
1/4=0.25
It's not the theoretical probability, because Samuel's developed an experiment, it cannot be theoretical, he has experimental evidences.
Your body eliminates about .015 of BAC per hour.
