Statistical Analyst

1113 words 5 pages
Show More
I am the Statistical Analyst for Slivers’ Gold Gym (SGG). I was assigned a project to examine the relation of 252 male gym members weight and body fat by conducting a hypothesis test. This report reflects the measures that I examined and how I conducted my hypothesis test to conclude if the male members have an average body fat of 20% as claimed by my boss.
Part I I analyzed the compiled sample data set that was provided to me for the hypothesis test of the body fat and weight of 252 male members of SGG. I used excel to help me find the mean, median, range and standard deviation. The excel sample data set will is appended to this report. The average body fat of the SGG 252 male gym members I analyzed is 18.9 (SD = 7.8) and the average …show more content…

The Ho and Ha was not equal to 20% but less than 20% so I rejected the null. I found that the z-score < -1.96.
Part III
Scatter Plot with Regression Line (will submit excel file separate)

Identifying my independent / predictor variable for this analysis regression was important because it provided me with a logical explanation for the response variable. The predictor variable should precede the response variable in time or a causal relationship. Sometimes the predictor variable can be measured easily or have no casual force. This makes for a good way to estimate the response variable. In my regression analysis of body fat (y) vs. weight (x) I used weight as the predictor because it is measured easily. We can also use the weight measurements to estimate the body fat. I have concluded that there is a positive correlation between the weight (x) and body fat (y). The points on my scatter plot increase from left to right. As for what the correlation coefficient determines is if the strength and direction of the relation between the two variables, weight vs. body fat. The correlation between my two variables is 0.61315611. The linear on my scatter plot is a good fit for the sample data I was provided by SGG. The clusters are fairly tight around the line and have no obvious patterns to the differences; they do not fall into a curve. A slope shows how many percentage points of body fat are gained

Related

  • Statistics in Sports
    1092 words | 5 pages

    is applicable to a wide variety of academic disciplines, from the physical and social sciences to the humanities. Statistics are also used for making informed decisions – and misused for other reasons – in all areas of business and government. Statistical methods can be used to summarize or describe a collection of data; this is called descriptive statistics. In addition, patterns in the data may be modeled in a way that accounts for randomness and uncertainty in the observations, and then used to….

    Show More
  • Petrol Case
    1128 words | 5 pages

    long-distance call (paid for out of his own pocket) to his friend Pepa, who is a chemist, who told him that the density of petrol is 0.75 kg/litre. Encouraged by his progress, before sending his report back by e-mail, Pepe wants to show off his skills as an analyst by performing a simulation which uses the same regression model but where the price is not a parameter, but rather a variable with a normal probability distribution given as: This document is one of the copies authorized for use only in GMBABL-ENG….

    Show More
  • Career Preparation
    3588 words | 15 pages

    After that, I should work toward the Chartered Financial Analyst (CFA) designation. The CFA Program provides a strong foundation of advanced investment analysis and real-world portfolio management skills that will give you a career advantage. * Job prospects/employment outlook Employment of financial analysts is projected to grow 16 percent from 2012 to 2022, faster than the average for all occupations. A growing range of financial….

    Show More
  • Team Leadership
    1193 words | 5 pages

    obsessive about doing things better and faster, and expects the same from the rest of the team. However, his receptiveness to the needs or urgency of the moment, and realistic approach to problem solving makes him an ideal candidate for the team’s market analyst. Assess Internal Capabilities The decision to enter a new market is largely driven by the organizational internal resource. The team will assess the current state of the organization to determine if it is economically feasible to enter a new market….

    Show More
  • Police Department: Proposal for Analytical Unit
    1941 words | 8 pages

    Abstract The City of Columbus Mississippi recognizes the need for a new analytical unit. This is a proposal that aims to develop this new analytical unit in an effort to support all levels of the Police Department, to include command personnel, supervisors, detectives, and patrol officers. law enforcement agencies in. This analytical unit will obtain and analyze as much information as possible in order to identify crime patterns, trends, offenders, and develop correlations, to improve short-term….

    Show More
  • Decision Support and Business Intelligence Systems 9th Edition Ch1&2 Exercise
    5929 words | 24 pages

    Decision Support and Business Intelligence Systems, 9th Edition Decision Support System - HW #1 - Chapter 1. Exercise 2 & 3 Chapter 1. Internet Exercise 4 & 8 Chapter 2. Exercise 5 & 9 Chapter 2. Exercise 3 & 4 < Chap 1. Exercises 2 > Enter the TUN site and select “cases, projects and assignments.” Then select the case study: “Harrah’s High Payoff from Customer Information.” Answer the following questions about this case: a. What information does the data mining generate….

    Show More
  • Sas Case Study
    9397 words | 38 pages

    "They decided to develop a uniform program that could be used over and over, and that could solve lots of different kinds of [statistical] problems." Having developed such a system, they leased SAS (Statistical Analysis System) to other agricultural schools in the region and to some pharmaceutical companies. When the soft money began to dry up, they were told they could stay on at the university but would have to pay….

    Show More
  • Baggage Complaints
    1395 words | 6 pages

    Case 2 - Baggage Complaints: Descriptive Statistics and Time Series Plots Baggage Complaints: Descriptive Statistics and Time Series Plots Background Anyone who travels by air knows that occasional problems are inevitable. Flights can be delayed or cancelled due to weather conditions, mechanical problems, or labor strikes, and baggage can be lost, delayed, damaged, or pilfered. Given that many airlines are now charging for bags, issues with baggage are particularly annoying. Baggage problems….

    Show More
  • Documenation for Generics Pharmacy
    1999 words | 8 pages

    the changes that the users requested to change and modify in order to reflect changing business transactions. We did this upon the approval and implementation of our proposed system. Systems Development Life Cycle Is a process used by a systems analyst to develop an information system, including requirements, validation, training, and user (stakeholder) ownership. Any SDLC should result in a high quality system that meets or exceeds customer expectations, reaches completion within time and cost….

    Show More
  • Ratio Analysis
    978 words | 4 pages

    Financial Ratios: What They MeanIn assessing the significance of various financial data, managers often engage in ratio analysis, the process of determining and evaluating financial ratios. A financial ratio is a relationship that indicates something about a company's activities, such as the ratio between the company's current assets and current liabilities or between its accounts receivable and its annual sales. The basic source for these ratios is the company's financial statements that contain….

    Show More

Popular Essays