N-.5 0 2What does the red area indicate?p(2>Z>-.5)O p(-.5>Z>2)Op(2> Z) or p(Z > -.5)p(-2> Z) or P(Z > .5)

Answered: Z -.5 0 2 What does the red area…

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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Statistical significance at the 0.01 level is more difficult to achieve easier to achieve ○ less costly O less informative than significance at the 0.05 level.
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Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy adults, the red blood cell volume mean is about μ = 28 ml/kg.† Red blood cell volume that is too low or too high can indicate a medical problem. Suppose that Roger has had seven blood tests, and the red blood cell volumes were as follows. 33 24 41 36 31 38 28 The sample mean is x ≈ 33.0 ml/kg. Let x be a random variable that represents Roger's red blood cell volume. Assume that x has a normal distribution and σ = 4.75. Do the data indicate that Roger's red blood cell volume is different (either way) from μ = 28 ml/kg? Use a 0.01 level of significance. (c) Find (or estimate) the P-value. (Round your answer to four decimal places.)
The stem-and-leaf plot illustrates the average number of text messages per hour sent by teenagers who answered an online survey about their use of technology to communicate.
R can be used to find the probability of obtaining a given F value or one more extreme (calculates the area under the curve to the left of the value). The function requires the F* test statistic, the degrees of freedom for the numerator and the degrees of freedom for the denominator (entered in that order). For our example, we will use F* 78. Then the p-value is: 2.39, dfbetween = 5 and dfwithin 1-pf (2.39, df1=5, df2=78) Enter this code into RStudio to confirm you obtain the value 0.04525. You conduct a one-way ANOVA with 5 groups and 9 subjects in each group (a balanced design) and obtain F* = 2.96. Use R to find the requested values, rounded to 4 decimal places. d fbetween dfwit fwithin P =
Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy adults, the red blood cell volume mean is about μ = 28 ml/kg.† Red blood cell volume that is too low or too high can indicate a medical problem. Suppose that Roger has had seven blood tests, and the red blood cell volumes were as follows. 33 26 42 34 28 35 31 The sample mean is x ≈ 32.7 ml/kg. Let x be a random variable that represents Roger's red blood cell volume. Assume that x has a normal distribution and σ = 4.75. Do the data indicate that Roger's red blood cell volume is different (either way) from μ = 28 ml/kg? Use a 0.01 level of significance. (a) What is the level of significance? Compute the z value of the sample test statistic. (Round your answer to two decimal places.)(c) Find (or estimate) the P-value. (Round your answer to four decimal places.)
6(5)

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Z -.5 0 2 What does the red area indicate? Op(2>Z>-.5) p(-.5>Z>2) p(2> Z) or p(Z > -.5) p(-2 > Z) or p(Z > .5)