by ella | Feb 26, 2025 | Statistics
1. Consider a multinomial experiment involving n = 300 and k = 5 cells. The observed frequencies resulting from the experiment are shown in the companying table, and the null hypothesis to be tested is as follows: Ho P1= .1, P2= .2, P3 = .3, P4 = .2 , P5 = .2 Test the...
by ella | Feb 26, 2025 | Statistics
9. What is the minimum sample size you should use to assure that your estimate of pq5_7 will be within the required margin of error around the population p? Margin of error: 0.005; confidence level: 99%; from a prior study, pq5_7 is estimated by 0.192. (Points :...
by ella | Feb 26, 2025 | Statistics
1. As part of a study, investigators wanted to assess the accuracy of self-reported smoking status. Participants are asked whether they currently smoke or not. In addition, laboratory tests are performed on hair samples to determine presence or absence of nicotine....
by ella | Feb 26, 2025 | Statistics
Question 1 Determine the error for each of the following forecasts. Compute MAD and MSE. Period Value Forecast Error 1 202 — — 2 191 202 3 173 192 4 169 181 5 171 174 6 175 172 7 182 174 8 196 179 9 204 189 10 219 198 11 227 211 Question 2 The U.S. Census Bureau...
by ella | Feb 26, 2025 | Statistics
Understanding Business Research Terms and Concepts: Part 1In the following examples, determine whether the term independent variable or dependent variable is appropriate.• Michael is interested in learning the effects of using celebrity endorsement on sales. What type...
by ella | Feb 26, 2025 | Statistics
2. The manger of the Carpet City outlet needs to make an accurate forecast of the demand of Soft Shag carpet (its biggest seller). If the manger does not order enough carpet from the carpet mill, customer will their carpet from one of Carpet City’s many...
by ella | Feb 26, 2025 | Statistics
a. Many travellers arrange their travel plans over the internet. A recent survey of 1000 randomly selected respondents reported that 55% purchased plane tickets over the internet. i. Find the 99% confidence interval estimate of the population proportion of travellers...
by ella | Feb 26, 2025 | Statistics
1. A clinical trial is conducted comparing a new pain medication for arthritis. Participants are randomly assigned to receive the new medication or a placebo. The outcome is pain relief within 30 minutes. The data are shown below. Pain Relief No Pain Relief New...
by ella | Feb 26, 2025 | Statistics
1.How do the 3rd grade boys’ weight in Principal Ben’s school compare to the national average (mean weight = 90, sd =15)? Provide the IV, DV, and best method of analysis. (Points : 6) Question 2.2.Are the student final exam scores in classroom A significantly...
by ella | Feb 26, 2025 | Statistics
Under what conditions would you recommend the following: Probability Sample Non-Probability Sample Please include an example of the research you would conduct for each type, so you can seethe application for each.
