Mathematics, 30.05.2021 18:50 peytonwilson2003
Solve the problem.
A large university is interested in learning about the average time it takes students to drive to campus. The university sampled 35 students and asked each to provide the amount of time they spent traveling to campus. The sample results found that the sample mean was 23.243 minutes and the sample standard deviation was 20.40 minutes. At 0.05 significance level, test the claim that the population standard deviation exceeds 20 minutes.
Find the
Null hypothesis
Alt hypothesis
Type of test
Estimate critical value
Test statistic
P-value
Decision
Final conclusion
Answers: 2
Mathematics, 21.06.2019 19:30
Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylinâs work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?
Answers: 2
Mathematics, 21.06.2019 23:00
In trapezoid abcd, ac is a diagonal and â abcâ
â acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.
Answers: 3
Solve the problem.
A large university is interested in learning about the average time it takes stu...
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