Answer:
(1)
Replacing the info given we got:
Step-by-step explanation:
Information given
represent the sample mean
represent the sample standard deviation
sample size
represent the value to verify
represent the significance level
t would represent the statistic
represent the p value
Hypothesis to test
We want to test if the true mean is higher than 9.33, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
The statistic is given by:
(1)
Replacing the info given we got:
Answer:
6.5
Step-by-step explanation:
I hope you have a great day!!
Answer:
10.756 esa seria la respuesta
Step-by-step explanation:
the answer is seven twelfth
Step-by-step explanation:
If 20 labourers=10 days
x labourers = 25 days
10x= 25×20

Cancelling out by 10 on both sides

Therefore, it takes 50 labourers to complete the work at the same rate in 25 days.