Mathematics, 15.04.2020 23:40, jackie533
The national mean annual salary for a school administrator is a year (The Cincinnati Enquirer, April 7, 2012). A school official took a sample of 25 school administrators in the state of Ohio to learn about salaries in that state and to see if they differed from the national average. Click on the datafile logo to reference the data. a. Formulate hypotheses that can be used to determine whether the population mean annual administrator salaries in Ohio differ from the national mean of . Null hypothesis: 1. : 2. : 3. : Choose correct answer from above choice Alternative hypothesis: 1. : 2. : 3. : Choose correct answer from above choice b. The sample data for Ohio administrators is contained in the datafile named Administrator. What is the -value for your hypothesis test in part (a)
Answers: 3
Mathematics, 21.06.2019 18:20, nehaljay1883
The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%
Answers: 1
Mathematics, 21.06.2019 21:00, hernandez09297
At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.
Answers: 1
The national mean annual salary for a school administrator is a year (The Cincinnati Enquirer, April...
Mathematics, 14.12.2020 01:10
Mathematics, 14.12.2020 01:10
Mathematics, 14.12.2020 01:10
Mathematics, 14.12.2020 01:10