We use the enteries from row labeled as two-tailed area.
p-value fall between the corresponding area 0.100 and 0.050.
Step 2 We now need to determine the corresponding areas. We previously determined that the sample...
Ste?1 (a) Find an interval containing the ponding P-value for a two-tailed test. we are given a Student's t distribution with df. # 9 and t-, 1.890. We wish to find an interval containing the corresponding P-value for a two-tailed test. To do this, we will use the Critical values for Student'st Distribution. Below is an excerpt from this table. one-tail area 0.250 0.125 0.100 0.075 0.050 0.025 0.010 0.005 0.0005 two-tail areal o.500 ?.250 o.200 0.150 0.100 0.050 0.020...
For a random sample of 36 data pairs, the sample mean of the differences was 0.72. The sample standard deviation of the differences was 2. At the 5% level of significance, test the claim that the population mean of the differences is different from 0. (a) Is it appropriate to use a Student's t distribution for the sample test statistic? Explain. No, the sample size is not larger than 30. Yes, the sample size is larger than 30. No, the...
= 16 locations in region I gave the A study of fox rabies in a country gave the following information about different regions and the accurrence of rabies in each region. A random sample of n following information about the number of cases of fox rabies near that location. x, Region I Data 2 8 8 8 6 8 8 1 3 3 3 2 5 1 4 6 A second random sample of n2 = 15 locations in region...
Do one of the following, as appropriate. (a) Find the critical value z/2. (b) find the critical value t/. (c) state that neither the normal nor the t distribution applies. Confidence level 99%; n = 16; o = 20.2; population appears to be normally distributed. Click here to view a table of critical t-values. Click here to view page 1 of the standard normal table Click here to view page 2 of the standard normal table - X t-table Find...
In her book Red Ink Behaviors, Jean Hollands reports on the assessment of leading Silicon Valley companies regarding a manager's lost time due to inappropriate behavior of employees. Consider the following independent random variables. The first variable x1 measures manager's hours per week lost due to hot tempers, flaming e-mails, and general unproductive tensions. x1: 3 5 8 2 2 4 10 The variable x2 measures manager's hours per week lost due to disputes regarding technical workers' superior attitudes that...
In her book Red Ink Behaviors, Jean Hollands reports on the assessment of leading Silicon Valley companies regarding a manager's lost time due to inappropriate behavior of employees. Consider the following independent random variables. The first variable x1 measures manager's hours per week lost due to hot tempers, flaming e-mails, and general unproductive tensions. x1: 3 5 8 2 2 4 10 The variable x2 measures manager's hours per week lost due to disputes regarding technical workers' superior attitudes that...
In her book Red Ink Behaviors, Jean Hollands reports on the assessment of leading Silicon Valley companies regarding a manager's lost time due to inappropriate behavior of employees. Consider the following independent random variables. The first variable x, measures manager's hours per week lost due to hot tempers, flaming e-mails, and general unproductive tensions. x 3 5 6 2 2 4 10 The variable x, measures manager's hours per week lost due to disputes regarding technical workers' superior attitudes that...
Given X, and x, distributions that are normal or approximately normal with unknown o, and on, the value of t corresponding to X, - X, has a distribution that is approximated by a Student's t distribution. We use the convention that the degrees of freedom is approximately the smaller of n - 1 and n, - 1. However, a more accurate estimate for the appropriate degrees of freedom is given by Satterthwaite's formula: 2 2 xn2 522 +$22) d.f. z...
9.2.17 Question Help A simple random sample of size nis drawn from a population that is normally distributed. The sample mean, X, is found to be 106, and the sample standard deviations, is found to be 10. (a) Construct a 96% confidence interval about if the sample size, n, is 17 (b) Construct a 96% confidence interval about if the sample size, n, is 22 (c) Construct a 98% confidence interval about if the sample size, n, is 17 id...
Question No: 3 (a) A factory produces 2.5% of defective items.If a sample of 200 items is taken at random from the production. What is the probability that there will be at least four collision in a week? (2 Marks) 50,where t (b) The failure distribution function F(t) of a building system is given F(t) = 1-e is in years. Determine the following: (i) The system will last more than 6 years (ii) hazard function h(t) (3 Marks) (C) A...