5. (15 points) the time needed for college students to complete a certain maze follows
a norma...
Mathematics, 18.12.2019 08:31 loudenalexisp56lp0
5. (15 points) the time needed for college students to complete a certain maze follows
a normal distribution with a mean of 45 seconds. to see if the mean time time (in
seconds) is changed by vigorous exercise, we have a group of nine college students exercise
vigorously for 30 minutes and then complete the maze. the sample mean and standard
deviation of the collected data is 49.2 seconds and 3.5 seconds respectively. use these
data to perform an appropriate test of hypothesis at 5% level of significance.
(a) state the null and alternative hypothesis
(b) find the rejection region
(c) find your test statistic
(d) state your conclusion
Answers: 1
Mathematics, 21.06.2019 20:20
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Answers: 1
Mathematics, 21.06.2019 20:30
What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81
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Acaterer charges $500 plus $30 per guest to cater a wedding. walt and traci don't want to spend more than $8000 on catering. write and solve an inequality in terms of the number of guests, g, that can be invited. a) 30g ? 8000; g ? 267 b) 500g < 8000; g < 16 c) 500 + 30g < 8000; g < 250 d) 500 + 30g ? 8000; g ? 250
Answers: 1
Mathematics, 22.06.2019 00:20
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Answers: 1
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