Mathematics, 20.06.2020 16:57 slowik9467
The mean final exam score of 35 students who had calculus in high school is 77.3 (with a standard deviation of 6.8); while the mean exam score of 23 students who had not had calculus in high school is 73.6 (with a standard deviation of 7.4). What is the standard error for a confidence interval comparing these two means? Question 3 options:
Answers: 3
Mathematics, 21.06.2019 17:20
Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?
Answers: 3
Mathematics, 21.06.2019 18:30
Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists
Answers: 2
Mathematics, 22.06.2019 00:00
Add, subtract, multiply, or divide as indicated. list any restrictions for the variable(s) and simplify the answers when possible. 1) x-2 / x+5 + 3x / 2x-1 2) x+6 / x-6 - x^2 / x+6 3) x+9 / x-4 + x+2 / x^2-11x+28 4) x / x^2-64 + 11 / 2x^2+11x-40 5) 5 / x + 11 / x-3 - x-4 / x^2+2x-15
Answers: 1
The mean final exam score of 35 students who had calculus in high school is 77.3 (with a standard de...
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