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Mathematics, 21.04.2020 16:22 elf55
The cost of a college education has increased at a much faster rate than costs in general over the past twenty years. In order to compensate for this, many students work part- or full-time in addition to attending classes. At one university, it is believed that the average hours students work per week exceeds 20. To test this at a significance level of 0.05, a random sample of n = 20 students was selected and the following values were observed: 26 15 10 40 10 20 30 36 40 0 5 10 20 32 16 12 40 36 10 0 Based on these sample data, the critical value expressed in hours: Question 34 options: is approximately equal to 25.0 hours. is approximately equal to 25.26 hours. is approximately 22 hours. cannot be determined without knowing the population standard deviation.
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Mathematics, 22.06.2019 05:30, matius0711
Shown here are the three essential steps in a proof of the pythagorean theorem. comparing the 1st and 3rd steps how are the colored regions related as to the areas? a. yellow+blue=orange b. orange=yellow=green c. yellow+blue=green=orange d. yellow+green=orange+blue
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