Mathematics, 05.05.2020 15:55 ofcitsnijah
Tensile-strength tests were carried out on two different grades of wire rod. Grade 1 has 10 observations yielding a sample mean of 1085 and standard deviation of 52. Grade 2 has 15 observations yielding a sample mean of 1034 and standard deviation of 61. Assume the populations to be approximately normal with equal variances.
State and conclude your hypothesis at the 0.05 level of significance if grade 1 and grade 2 true means are equal each other?
Find P-Value.
Answers: 3
Mathematics, 21.06.2019 19:00, robert7248
Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.
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Mathematics, 21.06.2019 20:30, natebarr17
The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a
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Tensile-strength tests were carried out on two different grades of wire rod. Grade 1 has 10 observat...
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