Suppose x has a normal distribution with mean u = 42 and standard deviation o = 13. Describe the distribution of x values for sample size n = 4. (Round o, to two decimal places.) H = Describe the distribution of x values for sample size n = 16. (Round o, to two decimal places.) Describe the distribution of x values for sample size n = 100. (Round o, to two decimal places.) Hj = How do the x distributions compare for the various samples sizes? The means are the same, but the standard deviations are decreasing with increasing sample size. The standard deviations are the same, but the means are increasing with increasing sample size. The standard deviations are the same, but the means are decreasing with increasing sample size. The means and standard deviations are the same regardless of sample size. The means are the same, but the standard deviations are increasing with increasing sample size.

Suppose x has a normal distribution with mean u = 42 and standard deviation o = 13. Describe the distribution of x values for sample size n = 4. (Round o, to two decimal places.) H = Describe the distribution of x values for sample size n = 16. (Round o, to two decimal places.) Describe the distribution of x values for sample size n = 100. (Round o, to two decimal places.) Hj = How do the x distributions compare for the various samples sizes? The means are the same, but the standard deviations are decreasing with increasing sample size. The standard deviations are the same, but the means are increasing with increasing sample size. The standard deviations are the same, but the means are decreasing with increasing sample size. The means and standard deviations are the same regardless of sample size. The means are the same, but the standard deviations are increasing with increasing sample size.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The average retirement age in America is 64 years old. Brianna thinks that yoga teachers owners retire at age that is younger than average. We want to test Brianna's claim at the 0.09 level of significance. The data below shows the results of a survey of yoga teachers about the age where they retired. Assume that the distribution of the population is normal. 53, 61, 57, 66, 64, 68, 60, 68, 52, 65, 49 Download CSV or cut and paste into Desmos . ) For this study, which type of test should we use? Select an answer i) The null and alternative hypotheses would be: Ho: ? Select an answer H: ?v Select an answerv ii) The test statistic is (Please round your answer to 2 decimal places.) ) The p-value - (Please round your answer to 3 decimal places.) iv) What is our conclusion regarding the null hypothesis? Explain. v) What is our final conclusion about Brianna's claim?
4. Which proportion of a normal distribution is located between the mean and z = +1.40? 5. A vertical line drawn through a normal distribution at z = +2.11 separates the distribution into two sections, the body and the tail. Which proportion of the distribution is in the tail?
Q2: Find the value of 'p’ if the mean of the distribution is 14.45, and hence find median, mode, variance and standard deviation: Class 2.525-7.524 7.525-12.524 | 12.525-17.524 17.525-22.524 22.525-27.524 Frequency 9 15 34 P
Suppose x has a normal distribution with mean ? = 26 and standard deviation ? = 7.Describe the distribution of x values for sample size n = 4. (Round ?x to two decimal places.) ?x = ?x = Describe the distribution of x values for sample size n = 16. (Round ?x to two decimal places.) ?x = ?x = Describe the distribution of x values for sample size n = 100. (Round ?x to two decimal places.) ?x = ?x = How do the x distributions compare for the various samples sizes? The standard deviations are the same, but the means are decreasing with increasing sample size.The standard deviations are the same, but the means are increasing with increasing sample size. The means are the same, but the standard deviations are decreasing with increasing sample size.The means are the same, but the standard deviations are increasing with increasing sample size.The means and standard deviations are the same regardless of sample size.
Assume the samples are random and independent, the populations are nomally distributed, and the population variances are equal. The table available below shows the prices (in dollars) for a sample of automobile batteries. The prices are classified according to battery type. At a = 0.10, is there enough evidence conclude that at least one mean battery price is different from the others? Complete parts (a) through (e) below. E Click the icon to view the battery cost data. (a) Let u1. P2. H3 represent the mean prices for the group size 35, 65, and 24/24F respectively. Identify the claim and state Ho and H. H Cost of batteries by type The claim is the V hypothesis. Group size 35 Group size 65 Group size 24/24F 101 111 121 124 D 146 173 182 278 124 140 141 89 (b) Find the critical value, Fo, and identify the rejection region. 90 79 84 The rejection region is F Fo, where Fo = (Round to two decimal places as needed.) (c) Find the test statistic F. Print Done F= (Round to two decimal places as…
Next Question Assume that a randomly selected subject is given a bone density test. Those test s Draw a graph and find the probability of a bone density test score between - 2.15 and 2.15. distributed with a mean of 0 and a standard deviation of 1. ..... Sketch the region. Choose the correct graph below. A. В. С. D. -2.15 2.15 -2.15 2.15 -2.15 2.15 -2.15 2.15 The probability is (Round to four decimal places as needed.)
Write complete and legibly.
Suppose x has a normal distribution with mean ? = 53 and standard deviation ? = 7.Describe the distribution of x values for sample size n = 4. (Round ?x to two decimal places.) ?x = ?x = Describe the distribution of x values for sample size n = 16. (Round ?x to two decimal places.) ?x = ?x = Describe the distribution of x values for sample size n = 100. (Round ?x to two decimal places.) ?x = ?x =
Please state if the statement is correct or wrong and explain why. Statement 1. The sampling distribution of the sample mean with a sample size of 12 has a smaller standard error than that of the sampling distribution of the sample mean with a sample size of 13. Statement 2. Degrees of Freedom is one of the parameters of the normal distribution. Statement 3. A parameter is a function of a sample.
Please answer 7-8 only, show your complete solution and dont use excel
11...
The average number of cavities that thirty-year-old Americans have had in their lifetimes is 7. Do twenty-year-olds have a different number of cavities? The data show the results of a survey of 13 twenty-year-olds who were asked how many cavities they have had. Assume that the distribution of the population is normal. 9, 8, 8, 10, 10, 9, 9, 10, 6, 6, 9, 8, 8 What can be concluded at the α = 0.01 level of significance? The p-value = _______ (Please show your answer to 4 decimal places.) The p-value is _______ α Based on this, we should _________ the null hypothesis.