Mathematics, 24.06.2019 08:30 tordiacasey
Every user of statistics should understand the distinction between statistical significance and practical importance. a sufficiently large sample will declare very small effects statistically significant. let us suppose that sat mathematics (sat) scores in the absence of coaching vary normally with mean μ = 500 and σ = 100. suppose further that coaching may change μ but does not change σ. an increase in the sat score from 500 to 503 is of no importance in seeking admission to college, but this unimportant change can be statistically very significant. to see this, calculate the p-value for the test of the given hypotheses in each of the following situations.
Answers: 2
Mathematics, 21.06.2019 16:30
International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?
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Mathematics, 21.06.2019 19:00
What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100
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Mathematics, 21.06.2019 20:30
Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?
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Mathematics, 21.06.2019 20:50
Determine the common ratio and find the next three terms of the geometric sequence. 649-14-02-00-00_files/i0100000, 649-14-02-00-00_files/i0100001, 2, a. 3; 649-14-02-00-00_files/i0100002, 649-14-02-00-00_files/i0100003, 649-14-02-00-00_files/i0100004. c. 649-14-02-00-00_files/i0100005; 649-14-02-00-00_files/i0100006, 649-14-02-00-00_files/i0100007, 649-14-02-00-00_files/i0100008. b. 3; 6, 18, 54 d. 649-14-02-00-00_files/i0100009. 6, 18, 54 select the best answer from the choices provided a b c d
Answers: 1
Every user of statistics should understand the distinction between statistical significance and prac...
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