Mathematics, 21.11.2019 05:31 carlo123
Ten measurements of impact energy on specimens of a238 steel at 60 ºc are as follows: 64.1, 64.7, 64.5, 64.6, 64.5, 64.3, 64.6, 64.8, 64.2, and 64.3 j. a. use the student’s t distribution to find a 95% confidence interval for the impact energy of a238 steel at 60 ºc. b. use the student’s t distribution to find a 98% confidence interval for the impact energy of a238 steel at 60 ºc.
Answers: 2
Mathematics, 21.06.2019 15:30
Which is the length of the hypotenuse of the triangle a. 94ft b. 214 ft c. 33ft d. 37 ft
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Mathematics, 21.06.2019 20:30
3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.
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Mathematics, 21.06.2019 20:40
What are the values of each variable in the diagram below?
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Mathematics, 21.06.2019 21:30
About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?
Answers: 1
Ten measurements of impact energy on specimens of a238 steel at 60 ºc are as follows: 64.1, 64.7, 6...
Mathematics, 18.07.2020 01:01
Mathematics, 18.07.2020 01:01