Mathematics, 12.05.2020 23:57, bxbykay1
The national mean annual salary for a school administrator is $90,000 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 to see if they differed from the national average. a. Formulate hypotheses that can be used to determine whether the population mean annual administrator salary in Ohio differs from the national mean of $90,000. b. The sample data for 25 Ohio administrators is contained in the DATAfile named Administrator. What is the p-value for your hypothesis test in part (a)
Answers: 3
Mathematics, 21.06.2019 18:30, 420420blazee
You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?
Answers: 3
Mathematics, 22.06.2019 03:00, tylerbrewton23
The hockey team has been great! in 2008 they won 20% more games than in 2007. in 2009 they won 50% more games than in 2008. what was their overall percentage increase from 2007 through 2009?
Answers: 2
The national mean annual salary for a school administrator is $90,000 a year (The Cincinnati Enquire...
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