Mathematics, 03.08.2021 22:40, AariyahFennell
A random sample of 80 eighth grade students' scores on a national mathematics assessment test has a mean score of 288. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 285. Assume that the population standard deviation is 33. At a=0.08, is there enough evidence to support the administrator's claim? Complete parts (a) through (e)
Answers: 1
Mathematics, 21.06.2019 14:30, superfly903
Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?
Answers: 3
Mathematics, 21.06.2019 18:00, burnsmykala23
Solve this system of equations. 12x − 18y = 27 4x − 6y = 10
Answers: 1
A random sample of 80 eighth grade students' scores on a national mathematics assessment test has a...
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