Mathematics, 07.04.2020 23:53, cherry12345627
Use Random number generator (under Data Analysis) to simulate the following data set. Create 10 columns, each 20 points long and use the following parameters: Number of variables (10), number of data point (20), Distribution (Normal), Mean (40), Standard Deviation (10), Random seed (1234). The data should be in columns: A, B,C,β¦.,I, J.
Randomly pick two columns (say Column B and Column H) and perform 2-sided t-test on these two data columns. Record the P-value and repeat this procedure several times (at least 5 times). That is, each time randomly pick two columns, perform 2-sided t-test and record the P-value. And answer the questions. (Pick the closest answer)
What did you observe?
a. Most of the P-values are very small, and some below 5%.
b. P-values are very different, some small and some large, but very few, if any, below 5%
c. Most of the P-values are very large, around 0.9 and 0.95 range.
d. Essentially all P-values are below 5% and some even below 1% range.
Answers: 3
Mathematics, 21.06.2019 16:20, tmantooth7018
The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.
Answers: 3
Mathematics, 21.06.2019 22:00, makenziehook8
Given that sinβ
= 1/4, 0 < β
< Ο/2, what is the exact value of cosβ
? a. (β4)/4 b. (β15)/4 c. (4Ο)/2 d. (4β2)/4
Answers: 2
Mathematics, 21.06.2019 23:30, lilybear1700
The points (1, 7) and (0, 2) fall on a particular line. what is its equation in slope-intercept form?
Answers: 1
Use Random number generator (under Data Analysis) to simulate the following data set. Create 10 colu...
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