She made 21 batches! Can I have brainlyest please?
We are given with
x1 = 20 min
s1 = 2 min
x2 = 30 min
s2 = 4 min
p = 0.9
Condition (x > 25)
We need to get the t-value between the two means and comparing it wit the t-value for the time of 25 minutes given that there is a 90% probability that the weather will be good. Simply use the t-test formula and use the t-test table to get the probability.
The answer would be 9 because
5x^2-x(x+4)
5x^2-x^2-4x
4x^2-4x is your answer
Well $9.75 times 25 hours is $243.75.
Then you take that and multiply it by 10.
So she earned $2,437.5
