Answer:
The answer is -3.76923076923 but to the nearest hundredth it is -3.77
Answer:
Step-by-step explanation:
Given that in a recent poll 1 of 1000 American adults, the number saying that exercise is an important part of daily life was 753.
Sample proportion = 
To find 90% confidence interval we must find std error of proportion first
As per central limit theorem, sample proportion will follow a normal distribution with mean = 0.753
Std error of proportion= 
90% Z critical value = 1.645
Margin of error = 1.645*0.01363 = 0.0224
Confidence interval lower bound = 0.753-0.0224=0.731
Upper bound = 0.775
There are 41.646600000013 grams of barium chloride in 0.200 moles
Answer:
-13
Step-by-step explanation:
6-7 x 6+7
-1 x 13
-13