Answer:
The test statistic is -1.00
Step-by-step explanation:
Test statistic (Z) = (sample mean - population mean) ÷ sd/√n
sample mean = 38.8miles/gallon, population mean = 39miles/gallon, sd = 2.2miles/gallon, n = 120vans
Z = (38.8 - 39) ÷ 2.2/√120 = -0.2 ÷ 2.2/10.95 = -0.2 ÷ 0.20 = -1.00 (to 2 decimal places)
It would be 10000010. Have a good day
Answer: 5:8
Step-by-step explanation:
Answer:
don't get it but.. all are calculated averages
Step-by-step explanation:
height of a man =1.7m
height of a woman =1.6m
