Answer:
Step-by-step explanation:
Let X be the SRS scores of students.
Given that X is normal with standard deviation about 6.5.
Mean difference = 
is desired
i.e. Z score should be 
Std error = std deviation of sample = 0.447
b) 
So std error must be 0.997 and sample size must be atleast 193 to get the difference of x bar and mu to lie within 1.3 points in either direction
Answer
given,
Standard price = $ 7.50
8,500 chairs were manufactured, using 43,600 yards at a cost of $7.55 per yard.
Price Variance = Actual Quantity x (Actual Rate - Standard Rate)
= 43,600 x (7.55 - 7.50)
= 2180 (U)
Quantity Variance = Standard Rate x (Actual Quantity - Standard Quantity)
= 7.5 x (43600 - 8500 x 5)
= 8250 (U)
Cost Variance = 2180+ 8250 = 10430 (U)
Answer:
D. 12m^3n^5
Step-by-step explanation:
Answer:lol thanks
Step-by-step explanation:
Answer:
2:5
Step-by-step explanation:
divide / simplify the ratio
