Answer:
11
Step-by-step explanation:
Look at the picture for the process.
well it would be very helpful thank you
The answer is: 40
Step by step explanation:
Answer:
a) The estimated standard deviation of the sampling distribution of the proportion is 0.023
b) the estimated standard deviation have been if he had surveyed only 100 customers is 0.046
Step-by-step explanation:
given information:
the number of sample, n = 400
sample proportion, p = 70% = 0.7
a) standard deviation of a sample proportion is
σ = 
= 
= 0.023
b) if n = 100, so
σ = 
= 
= 0.046
Step-by-step explanation:
5x+4y=23
= x+y=23-5-4
=x+y=14
l think this is correct!!!!!