by ella | Feb 26, 2025 | Statistics
· Given the linear correlation coefficient r and the sample size n, determine the critical values of r. Use your finding to state whether or not the given r represents a significant linear correlation. Use a significance level of 0.05. r = -0.844, n = 5 · Question 2 5...
by ella | Feb 26, 2025 | Statistics
· Express the null hypothesis and alternative hypothesis in symbolic form. The manufacturer of a refrigerator system for beer kegs produces refrigerators that are supposed to maintain a true mean temperature,?, of 48°F, ideal for a certain type of German pilsner. The...
by ella | Feb 26, 2025 | Statistics
· If selecting samples of size n = 10 from a population with a known mean and standard deviation, what requirement, if any, must be satisfied in order to assume that the distribution of the sample means is a normal distribution? · Question 2 5 out of 5 points If z is...
by ella | Feb 26, 2025 | Statistics
Chapter 5 1. Total cholesterol in children aged 10-15 is assumed to follow a normal distribution with a mean of 191 and a standard deviation of 22.4. What proportion of children 10-15 years of age have total cholesterol between 180 and 190? What proportion of children...
by ella | Feb 26, 2025 | Statistics
· Question 1 5 out of 5 points A bag contains 4 red marbles, 3 blue marbles, and 7 green marbles. If a marble is randomly selected from the bag, what is the probability that it is blue? · Question 2 5 out of 5 points Of 1,735 people who came into a blood bank to give...
by ella | Feb 26, 2025 | Statistics
8-2 #28Original Claim: Women have heights with a standard deviation equal to 5.00cm. The hypothesis test results in a P-value of 0.0055. Assume a significance level of a=0.05 and use the given information for the following.A. State a conclusion about the null...
