What activities are the examples there’s nothing there
Answer:
1219253925
Step-by-step explanation:
Calculator
Answer:
119/38 = n
Step-by-step explanation:
7-2n 1
------------ = ---
7+2n 18
We can use cross products to solve
(7-2n) * 18 = (7+2n) *1
Distribute
18*7 -18*2n = 7+2n
126 - 36n = 7+2n
Add 36n to each side
126 -36n+36n = 7+2n+36n
126 = 7+38n
Subtract 7 from each side
126-7 = 7+38n-7
119 = 38n
Divide by 38
119/38 = 38n/38
119/38 = n
Answer:
e. two-sample z-test for two proportions
Step-by-step explanation:
He has two machines, which have a proportion of defective motherboards. He want to compare this two proportions.
He takes two samples, one for each machine, and calculate the proportion in order to statistically test if there are significant difference between the proportions.
Then, this is a two-sample z-test for two proportions
