Answer: (24755, 25245)
Step-by-step explanation:
Given : Sample size : n= 400
Sample mean : 
Standard deviation : 
Significance level : 
Critical value : 
The confidence interval for population mean is given by :-
Hence, the 95% confidence interval for the mean salary of all graduates from the English department is (24755, 25245)
20 is the right answer because it loses 2 feet in the angle and goes two ffet back cause the angle
Answer:
H0 : μ = 0.75
H1 : μ > 0.75
Step-by-step explanation:
Given :
Sample size, n = 125
x = 99
Phat = x / n = 99 / 125 = 0.792
Population proportion, P = 0.75
The hypothesis :
Null hypothesis :
H0 : μ = 0.75
Alternative hypothesis ;
Egates the null hypothesis ; since the sample proportion is greater than the the population proportion or claim "; then we use the greater than sign.
H1 : μ > 0.75
Answer:
it is 1/5
Step-by-step explanation:
.............
