Mathematics, 14.04.2020 15:56, mcclendoncassandra
You want to test the hypothesis that the average NYU student spends no more than $600 on subway fares per academic year. You happen to know that variance in subway fare spending is $900. You plan to test this hypothesis by asking n students to track their subway expenses over the course of the academic. If you have a significance level of .01, how many students would you have to track to have a 90% chance of rejecting the null hypothesis when the average subway spending is actually $620. (It is a one-sided hypothesis test with H0: µ = $600 and H1: µ > $600)
Answers: 3
Mathematics, 21.06.2019 16:20, williamsgregg5214
Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.
Answers: 3
Mathematics, 21.06.2019 16:30, hector87
The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257
Answers: 2
You want to test the hypothesis that the average NYU student spends no more than $600 on subway fare...
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