Solution :
a). Standard error of sample mean = 

= 0.1290994
The observed mean point be 
Test statistics z = 

For the left one sided test, critical value of z to reject 
We reject
when test statics z < -1.64
b). Value of
z < -1.64



∴ we reject
when 
c). The probability of rejecting
when
,



Answer:
x = 17
Step-by-step explanation:
looks kind of isosceles to me
29 x 2 = 58
180 - 58 = 122
122 + 14 = 136
136 / 8 = 17
x = 17
28 could have just looked it up
Answer:
It will be 9 gift bags
Step-by-step explanation:
Just step by step, 9 equals into both of them.
Answer:
Answer choices A and D. E would also be correct but it's a perfect correlation and the question said "strong but not perfect"
Step-by-step explanation: