Mathematics, 29.10.2019 13:31 Destinyb3722
Do students tend to improve their sat mathematics (sat-m) score the second time they take the test? a random sample of four students who took the test twice received the following scores: student 1 2 3 4 first score 450 520 720 600 second score 440 600 720 630 assuming that the change in sat-m score (second score – first score) for the population of all students taking the test twice is normally distributed with mean μ, are we convinced that retaking the test improves scores? what is the p-value for a test of h0: μ = μ0 versus ha: μ ≠ μ0? c. less than 0.01 a. more than 0.75 b. more than 0.10
Answers: 2
Mathematics, 22.06.2019 03:50
Gigi earned $65 for 5 hours of gardening. she earned $90 for 9 hours of office work. which statement correctly compares gigi’s earning per hour for gardening and office work? she earned $3 more per hour for office work than for gardening. she earned $4 more per hour for office work than for gardening. she earned $3 more per hour for gardening than for office work. she earned $4 more per hour for gardening than for office work.
Answers: 1
Mathematics, 22.06.2019 05:00
The equation m = 19.32v can be used to find the mass m in grams of a pure gold coin with volume v in cubic centimeters. carl has a coin with a mass of 37.8 grams. the coun's volume is 2.1 cubic centimeters. could the coin be pure gold? explain your reasoning. whoever answers this correctly gets marked brainliest! this is also worth a decent amount of points than normal questions!
Answers: 3
Mathematics, 22.06.2019 06:00
Which of the following describes how to calculate the value of x?
Answers: 2
Do students tend to improve their sat mathematics (sat-m) score the second time they take the test?...
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