Answer:
8×10^21
Step-by-step explanation:
Answer:The family will use 792 gallons of water in the new washing machine
Step-by-step explanation:
1440 X 0.55=792
100-45=55
The answer is A = 2 tenths
C = .2
A and C
Answer:
Option A) reject null hypothesis if z is greater than 1.645
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 250
p = 30% = 0.3
Alpha, α = 0.05
Number of women belonging to union , x = 75
First, we design the null and the alternate hypothesis
This is a one-tailed(right) test.
Rejection Region:

So, the rejection region will be

That is we will reject the null hypothesis if the calculated z-statistic is greater than 1.645
Option A) reject null hypothesis if z is greater than 1.645
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