Mathematics, 06.12.2019 04:31 dadonelson2109
Your local pizza chain claims that the delivery time of their pizzas is normally distributed with a mean of 30 minutes and standard deviation of 10 minutes. twenty of your friends in different locations order pizzas and the average delivery time is 42 minutes with standard deviation of 10 minutes. compute a one-sample t statistic. do you have a reason to disbelieve the chain’s claim?
Answers: 3
Mathematics, 21.06.2019 17:30
Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?
Answers: 3
Mathematics, 21.06.2019 22:00
In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog
Answers: 2
Your local pizza chain claims that the delivery time of their pizzas is normally distributed with a...
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