Answer:
20,45
Step-by-step explanation:
Answer with explanation:
Given : Sample mean =
Standard deviation :
Sample size : n = 36
Claim :
∴
Since the alternative hypothesis is two tail , then the test is two tail test.
By using a z statistic and a 0.05 level of significance. Reject if z < -1.960 or is z> 1.960.
Then , the test static for population mean is given by :-
We reject since . We have statistically significant evidence at to show that the mean amount of garbage per bin is not different from 50.
You have to add 103 to 228 which gives you 331. Answer 331 miles
Answer:
20
Step-by-step explanation:
Its 7+8+5