One Population Mean
Subsequent to the numerous feedbacks from Poppies Fish & Chip’s clients in London about the number of fish and chips being served, the On-line news production “MCL News” chose to test the reality of the fish and chips served at a specific London Poppies Fish ; Chip’s shop. As per the MCL News article, the net weight average of a medium-sized fish and fries set by Poppies Fish & Chip’s of London is 320g. 50 samples of medium-sized fish and fries were then tested to see if the claim is true gauged the fish and fries. The 50 samples tested then had a net average weight of 290 grams and has a 10 grams standard deviation. Test if the claim is true with 1% level of significance.
One Population Proportion
According to E – Youth State University of Manhattan the total average of students lastt year whoo enrolled and came from rich families is 38.5%, but unfortunately this year there has been many bombing issues that is going aroung the vicinity of the university. The E – Youth State University of Manhattan wanted to conduct a study whether the bombing issues affected the number of enrollees that came from the rich families. A sample of 2,000 students were inspected and found out that only 24.6% of it came from rich families. With 5% level of significance, can it be concluded that there has been a decreased in the number of enrollees from rich families?