Answer:
100 is the answer
Step-by-step explanation:
Answer:
Test statistic = 1.664
Step-by-step explanation:
The hypothesis :
H0 : μ = 47.2
H1 : μ ≠ 47.2
Given that :
Sample mean, xbar = 47
Sample size, n = 250
Standard deviation, σ = 1.9
The test statistic :
(xbar - μ) ÷ (σ/√(n))
T = (47 - 47.2) ÷ (1.9/√(250))
T = (0.2 / 0.1201665)
Test statistic = 1.664
Answer: 25%
Step-by-step explanation:
Given : A pharmacist added 50 g of drug to make a total of 200 mL of solution.
Here, Resultant solution = 200 mL
Amount of drug = 50 g
We know that 1 gram = 1 ml
So, we can say the amount of drug = 50 ml
Now, the percentage of drug in the resultant solution:-

Hence, the percentage of drug in the resultant solution= 25%
Answer:
14
Step-by-step explanation:
44-9=35
35+77=122
122÷8=14