School Work – Page 5

LIS 4273 Adv Statistics: Module 9 T-Test for Independent Samples

The data is from a study whose research hypothesis was: “There will be a difference between boys and girls in the number of times they raise their hand in class.” For the purposes of this study, boys were coded as 2 on gender; girls were coded as 1. I wrote some…

By Simon Liles October 25, 2020LIS 4273 Adv Statistics, School Work

LIS 4273 Adv Statistics School Work

LIS 4273 Adv Statistics: Module 8 Hypothesis Testing and Correlation Analysis

First Question:The director of manufacturing at a cookies needs to determine whether a new machine is production a particular type of cookies according to the manufacturer's specifications, which indicate that cookies should have a mean of 70 and standard deviation of 3.5 pounds. A sample pf 49 of cookies reveals…

By Simon Liles October 18, 2020LIS 4273 Adv Statistics, School Work

LIS 4273 Adv Statistics School Work

LIS 4273 Adv Statistics: Module 7 Confidence Interval Estimation and Hypothesis Testing

Part 1. Confidence Interval Estimation Questions when the mean is known Equation 1: Pulled from assignment page 1. x̄ = 85 and σ = 8, and n = 64, set up a 95% confidence interval estimate of the population mean μ. Using the given equation and plugging in for the appropriate values, the following…

By Simon Liles October 10, 2020LIS 4273 Adv Statistics, School Work

LIS 4273 Adv Statistics School Work

LIS 4273 Adv Statistics: Module 6 Sampling and Confidence Interval Estimation

For this week's blog post I make an attempt to answer questions my professor gave me regarding sampling and confidence interval estimation. For the R code I used, you can find it here or use the link at the end of the article. Question 1 A publishing company has just…

By Simon Liles October 2, 2020LIS 4273 Adv Statistics, School Work

LIS 4273 Adv Statistics School Work

LIS 4273 Adv Statistics: Module 5 Random Variables and Probability Distributions

A Consider a population consisting of the following values, which represents the number of ice cream purchases during the academic year for each of the five housemates.8, 14, 16, 10, 11 a. Compute the mean of this population. The mean of the given population is 11.8. b. Select a random…

By Simon Liles September 27, 2020LIS 4273 Adv Statistics, School Work

LIS 4273 Adv Statistics School Work

LIS 4273 Adv Statistics: Module 4 Probability Theory

In this article I attempt to answer questions regarding the very important and equally difficult subject of probability. *Cheering noises* A. Based on the table, calculate the following probabilities: BB1A1020A12040Table 1: Given probabilities A1: Event A occurs. The probability of event A occurring would be about 30/90 or 33% chance…

By Simon Liles September 18, 2020LIS 4273 Adv Statistics, School Work

LIS 4273 Adv Statistics School Work

LIS 4273 Adv Statistics: Module 3 Bivariate Analysis

For Module 3 a single data set is given and Bivariate Analysis must be performed on it. Here the data is from airport security data representing the number of pre-boarding screenings performed and the number of security violations detected from the year 1988 to 1999. The table below is a…

By Simon Liles September 11, 2020LIS 4273 Adv Statistics, School Work

LIS 4273 Adv Statistics School Work

LIS 4273 Adv Statistics: Module 2 Descriptive Statistics

For the second module of LIS 4273 there were 2 sets of data given, each to have their central tendency and variation described using the R Language. The finding of the various statistics is relatively easy, the important aspect though is to understand what is being described. Below is the…

By Simon Liles September 4, 2020LIS 4273 Adv Statistics, School Work