Contraction : 0.9 & 3/8
Expansion : -6 , 8/5 , & 5
I hope this helps !
Answer:
24
Step-by-step explanation:
Answer: -2.10
Step-by-step explanation:
Given : 

Sample size : n= 50, since the sample size is greater than 30 , so we apply z-test.
Sample mean : 
Standard deviation : 
The test statistic for population mean :-

i.e. 
Hence, the value of the test statistic = -2.10
Answer:
y<1
Step-by-step explanation:
-2(y-4)+8y+2<16
-2y+8+8y+2<16
6y+10<16
6y<16-10
6y<6
y<6/6
y<1