The purpose of this assignment is to reflect on your understanding of topics you have learned so far about the margin of error and the Confidence Interval and then explaining it to someone else. Discuss the following and give real life examples. Why do we have a Margin of Error in Statistics? If statistics are … Read more
Problem 2 (35%) – File: Bank. xlsx Community Bank would like to increase the number of customers who use payroll deposit. Management is considering a new sales campaign that will require each branch manager to call each customer who does not currently use payoff direct deposit. As an incentive to sign up for payroll direct … Read more
Problem 1 (35 % marks) File: MALL. XLS A national chain of women’s clothing stores with locations in the large shopping malls thinks that it can do a better job of planning more renovations and expansions if it understands what variables impact sales. It plans a small pilot study on stores in 25 different … Read more
Give an example of an interval estimate of an average or proportion you may use in your daily life. For instance, you may say that you are pretty sure your average commute time is between 25-30 minutes, or you are fairly confident that between 60-65% of the population love dogs. Collect some data to see … Read more
Collect some quantitative data (if your data from week 1 is quantitative, you can use it). Find the sample mean and standard deviation. Plot it in a histogram. Does the data seem to follow the bell curve of the normal distribution? What features of the data do or do not fit in with the … Read more
For this assignment, you read the article written by Buzi, Smith, and Weinman (2014) located under your weekly resources. These authors used a chi-square analysis to analyze the data from their research study. Now, make a summary of the research, including background information on the topic, the main hypotheses, methods, results, and the conclusions … Read more
Collect some quantitative data (if your data from week 1 is quantitative, you can use it). Find the sample mean and standard deviation. Plot it in a histogram. Does the data seem to follow the bell curve of the normal distribution? What features of the data do or do not fit in with the shape … Read more
Consider a 10 question multiple choice test. How many answer options would you need on each item to ensure that the probability of a student randomly guessing earning a passing mark is less than 1 percent? How does the required number of answer options change if the total number of items is reduced to 5? … Read more
Post (300+ words): Give an example of an interval estimate of an average or proportion you may use in your daily life. For instance, you may say that you are pretty sure your average commute time is between 25-30 minutes, or you are fairly confident that between 60-65% of the population love dogs. Collect some … Read more
1 – Fitness data. Various measures of heart and pulse rate were taken on men in a physical fitness course at N.C. State Univ. The information provided has the following information: · runpulse: Pulse rate while running · maxpulse: Maximum pulse rate · rstpulse: Resting pulse rate · oxy: oxygen consumption Write a report describing … Read more