subject
Mathematics, 25.10.2021 23:20 silviamgarcia

Suppose that on a 100-point test, the teacher's goal is for her students' exam scores to have a standard deviation of at most 8 points. A recent sample of 25 exams has a sample standard deviation of 9.5. Test whether or not her goal was achieved using a 5% level of significance. Calculate the appropriate test statistic (round to 2 decimal places as needed)

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 16:00
Which graph represents the solution set for the given system of inequalities? x+2y< 3 x+y> 4 3x-2y> 4
Answers: 2
question
Mathematics, 21.06.2019 17:30
Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.
Answers: 3
question
Mathematics, 21.06.2019 21:30
Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?
Answers: 2
question
Mathematics, 21.06.2019 22:00
The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen β€œ- z-score
Answers: 1
You know the right answer?
Suppose that on a 100-point test, the teacher's goal is for her students' exam scores to have a stan...
Questions
question
Mathematics, 22.11.2019 09:31
question
Social Studies, 22.11.2019 09:31