Mathematics, 05.05.2020 05:37, cpratt2558
Steve wants to know what the average ACT scores of students graduated from his high school is. He randomly selected 25 students from an email list and asked them to provide the information. Of them 20 students replied and the summary of the ACT score is as below: Sample size Mean STD Min Max 20 21.5 5.7 15 26 (1) What is the sample of the study and what is the population of the study? (2) Steve is told that the population standard deviation for ACT score is 4.6 for his high school, estimate the population average ACT score of his high school graduates with 86% confidence level. (3) If the population standard deviation is not provided, estimate the population average ACT score of his high school graduates with 95% confidence level.
Answers: 3
Mathematics, 22.06.2019 00:40, leannaadrian
If a distance of 75 yds is measured back from the edge of the canyon and two angles are measured , find the distance across the canyon angle acb = 50° angle abc=100° a=75 yds what does c equal?
Answers: 1
Mathematics, 22.06.2019 02:30, cdyshaylia55
Quickly multiply and simplify polynomials (x – 4) (x^2 – 5x – 6)
Answers: 1
Steve wants to know what the average ACT scores of students graduated from his high school is. He ra...
History, 04.10.2021 05:10
Physics, 04.10.2021 05:10
English, 04.10.2021 05:10
Mathematics, 04.10.2021 05:10
Mathematics, 04.10.2021 05:10
Biology, 04.10.2021 05:10
Mathematics, 04.10.2021 05:10
Mathematics, 04.10.2021 05:10