Answer:
The null hypothesis is given as
while the alternate hypothesis is 
Step-by-step explanation:
As per the the given data
p1=Proportion of Homeowners who would buy the security system
p2=Proportion of Renters who would buy the security system
As the null hypothesis states that there is no difference in the test thus it is given as

This states that there is no difference between the probabilities of the homeowners buying the security system and the renters buying the security system.
The Alternative hypothesis is the other possibility of the null hypothesis. i.e It negates the null Hypothesis and is given as

Answer:
A) 48.8
Step-by-step explanation:
the mean is: sum of all terms divided by number of terms
49 + 37 + 41 + 54 + 63= 244
244/ 5= 48.8
2 groups of 9
3 groups of 6
6 groups of 3
9 groups of 2
The answer for that is 23/16
Answer:
22 females and 26 males
Step-by-step explanation:
m + f = 48
m = f + 4
f + 4 + f = 48
2f = 44
f = 22
48 - 22 = 26 = m