Answer:
b
Step-by-step explanation:
Answer:
97 in each bag
Step-by-step explanation:
485÷5=97
97*5=485
80. Bc a 6:6 ratio is also a 1:1. So half of 160 them would be female.
Answer:
hey i need to talk
Step-by-step explanation:
Answer:
As
, it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.
Step-by-step explanation:
1. Relevant data:

2. Hypotesis testing


3. Find the rejection area
From the one tail standard normal chart, whe have Z-value for
is 1.56
Then rejection area is left 1.56 in normal curve.
4. Find the test statistic:


5. Hypotesis Testing


As
, it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.