Mathematics, 15.04.2020 22:03 kaylam5599
We intend to estimate the average driving time of Chicago commuters. From a previous study, we believe that the average time is 42 minutes with a standard deviation of 6 minutes. We want our 99 percent confidence interval to have a margin of error of no more than plus or minus 2 minutes. What is the smallest sample sizethat we should consider?
Answers: 2
Mathematics, 21.06.2019 17:00, nelyanariba981p555ve
Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?
Answers: 1
Mathematics, 21.06.2019 23:10, ineedhelp2285
The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.
Answers: 1
We intend to estimate the average driving time of Chicago commuters. From a previous study, we belie...
Mathematics, 28.01.2021 20:40
Mathematics, 28.01.2021 20:40
Mathematics, 28.01.2021 20:40
Mathematics, 28.01.2021 20:40
Mathematics, 28.01.2021 20:40