Class Activity 5Q4. Considering the following two distributions, which statement is correct?a) SD of the distribution A is larger than that of distribution B.b) Mode of the distribution A is larger than that of distribution B.c) Range of the distribution A is smaller than that of distribution B.d) Mean of the distribution A is larger than that of distribution B.e) A data item with z-score of -1 falls between 30 to 40 in distribution A.f) A data item with z-score of +1 falls between 10 to 20 in distribution B.AB102030405060708090100 Q5. In a research, blood pressure of a sample of people have been measured and plotted against their age, asshown below. Which statement is correct?a) The scatter plot indicates a perfect negative correlation.b) The scatter plot indicates approximate r = +0.95.c) The scatter plot indicates that older people tend to have higher blood pressure.d) If this data is fitted to a linear line of regression, the Y-intercept will be a positive.140130120110100908040455055606570Age (years)Systolic blood pressure (mmHg)

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Answered: Q4. Considering the following two…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The average score of all golfers for a particular course has a mean of 75 and a standard deviation of 3.5. Suppose 49 golfers play the course today. Find the probability that on average the score of the 49 golfers exceeded 7.6. Which formula is most appropriate to use? A.) standard normal Z table b.) none of these c.) z -score w.) raw score x.) z score for sample mean
To test whether the mean time needed to mix a batch of material is the same for machines produced by three manufacturers, a chemical company obtained the following data on the time (in minutes) needed to mix the material. Manufacturer 1 2 3 19 29 21 26 26 19 24 32 24 27 25 16 (a) Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use ? = 0.05. State the null and alternative hypotheses. H0: ?1 = ?2 = ?3Ha: ?1 ≠ ?2 ≠ ?3H0: ?1 ≠ ?2 ≠ ?3Ha: ?1 = ?2 = ?3 H0: ?1 = ?2 = ?3Ha: Not all the population means are equal.H0: At least two of the population means are equal.Ha: At least two of the population means are different.H0: Not all the population means are equal.Ha: ?1 = ?2 = ?3 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value = State your conclusion. Do not reject H0. There is sufficient…
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Find the standardized test statistic, z, to test the claim that p,
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