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Frequency Distribution

Statistical data from a pharmaceutical company

1. A pharmaceutical company conducted a study to evaluate the effectiveness and safety of a new inhaled form of insulin for the treatment of diabetes. A group of 650 diabetics was given the drug twice a day, while another group of 650 diabetics was given an inhaled placebo twice a day. Insulin levels were checked periodically

Frequency distribution, histogram and stem-and-leaf

For following set of scores, prepare a frequency distribution, a histogram, and a stem-and-leaf display for each variable. Also calculate the mean, the median and the standard deviation of each score. Are there any outliers in the distribution? If so,what is the result if these scores are removed fro the data set? Draw a scat

Statistics of One Variable

I have attached several problems that I need solved. Questions - u4 The questions are to be answered with full solutions. Be sure to focus on proper mathematical form, including: 1. One equal sign per line, 2. Equal signs in each question lined up vertically with each other, 3. No self-developed short form notations.

Frequency Distribution Charts

The following frequency distribution reports electricity cost for a sample of 50 two-bedroom apartments in Albuquerque, New Mexico during the month of May last year. Electricity Cost Frequency $ 80 up to $100 3 100 up to 120 8 120 up to 140

Finding Class Interval

The largest value in a set of data is 160, and the smallest value is 70. If the resulting frequency distribution is to have six classes of equal width, what will be the class interval? The options are 15, 6, 12, and 5.

Intervals and frequency tables

Don Larch, the manager of a popular local barbershop, has decided to evaluate the time required by his customers to obtain a haircut, pay, and depart. Doug borrowed the clock punch from one of the offices in the shopping center and asked the next 36 customers to punch in when they arrived at his shop and punch out after paying f

Statistics: hypothesis tests, variance, bar graphs, frequencies, and the z-score.

See attachment. Please show steps/work for problems. 1. During the last 10 years marketing executives believed that the same proportion of adult men and adult women watched TV news programs. The marketing executives would like to perform a statistical test to assure themselves that a greater proportion of women now watch TV

Statistics - Frequency Distribution

Please construct a frequency distribution for the data below: 26 26 25 17 16 16 14 17 21 16 16 18 17 15 15 19 16 17 22 15 19 17 16 24 16 thanks.

Relative Frequency of Smoking

A sample of individuals is selected, and the individuals are classified according to their smoking habits and the smoking habits of their parents. The results are given in the contingency table below. Parents' smoking habits Both parents smoke Only one parent smokes Neither parent smokes Individual's smokin

Frequency distribution and other Statistics Concepts

Please see the attached file. **All work must be shown (step by step) in order to receive credit. Part I : Question 10 - 13 Show all your work 1. Consider the following frequency distribution based on a set of sample data: X 0 1 2 3 4 5 f 10 17 14 9 3 1 a) What is the sample size? b) What is the

Exploratory Data Analysis for Assess Parental Relationships

Exercise 2 - Exploratory Data Analysis Constructing Scales to Assess Parents Relationships With Their Parents Introduction: This exercise is designed to illustrate both exploratory data analysis (EDA) and the construction of scales from a set of survey items. The scales are designed to examine "Mother's Feelings About Her

Quantitative Reasoning

Part A Statistical Tables and Graphs Frequency Table for Exam Scores Scores Frequency Relative Cumulative Frequency Frequency 95-99 2 6.7% 2 90-94 2 6.7% 4 85-89 6 20.0% 10 80-84 4 13.3% 14 75-79 6 20.0% 20 70-74 1 3.3% 21 65-69 4 13.3% 25 60-64 0 0.0% 25 55-59 2 6.7% 27 50-54 1 3.3% 28 45-49 1

Descriptive and Inferential Statistics

Use my data to: 1. Identify 1,2, 3 Sigma ranges (Show all calculations all samples) 2. Frequency Tables (Show all calculations all samples) 3 Different Aspects of descriptive statistical data Graph Showing Frequency Tables 2 Relevant Probability Questions 95% confidence interval for all samples Price

Comparing means and dispersion

The annual incomes of the five vice presidents of TMV Industries are: $125,000; $128,000; $122,000; $133,000; and $140,000. Consider this a population. a. What is the range? b. What is the arithmetic mean income? c. What is the population variance? The standard deviation? d. The annual incomes of officers of another firm sim

Tracking Software for Company Surveys

A producer of computer-aided design software for the aerospace industry receives numerous calls for technical support. Tracking software is used to monitor response and resolution times. In addition the company surveys customers who request support using the following scale: 0 -- Did not exceed exceptions 1 -- Marginally met e

Considering Statistical Concepts

Having a hard time with statistics fill in the blank and the textbook isnt helping. *One of the rules for determining the number of classes that should be used to relative frequency table that describes measurement data is the ?_ the sample size. *A ?_ diagram is a bar chart in which categories are plotted in order of de

A sample was taken of 25 high school seniors who were planning to go to college.

3. A sample was taken of 25 high school seniors who were planning to go to college. Each of the students was asked which of the following majors he or she intended to choose: business, economics, management information systems (MIS), behavioral sciences (BS), other. The responses of these students are as follows: Economics

Relative Frequency Distribution of Coke

Construct a relative frequency distribution for the weights of regular Coke by starting the first class at 0.7900 lb. and use a class width of 0.0050 lb. What I need is to understand the process to solve this problem. Weights are in pounds and volumes are in ounces. WEIGHT REG. COKE VOLUME REGULAR COKE 0.8192

The Solution to Basic Statistics

I need help with the attachment. 60. Owens Orchards sells apples in a large bag by weight. A sample of seven bags contained the following numbers of apples: 23, 19, 26, 17, 21, 24, 22. a. Compute the mean number and median number of apples in a bag. b. Verify that S (X - X) = 0. 62. The Citizens Banking Company is study

For these 4 questions below, what would be the (1) independent and dependent variables, (2) the level of measurement, and (3) whether or not the variable is discrete or continuous.

For these 4 questions below what would be the independent and dependent variables, the level of measurement and whether or not the variable is discrete or continuous. 1)A graduate student is studying sexual harassment on college campuses and asks 500 female students if they personally have experienced any such incidents eac

Statistics and Frequency Distributions

QUESTION #1 Refer to the real estate excel data set at : A. Organize the data on the number of bedrooms into a frequency distribution. 1. What is the typical number of bedroom? 2. What are the the fewest and the most number of bedrooms offered

Construct Frequency Distribution Table

Question 1 A survey was conducted to determine how people rated the quality of programming available on television. Respondents were asked to rate the overall quality from 0 (no quality at all) to 100 (excellent quality). The results were 32, 34, 40, 43, 44, 47, 48, 49, 49, 50, 50, 51, 51, 52, 53, 54, 55, 59, 62, 65, 66, 66, 70

Mixed Statistics Problems

1. A health magazine presented results of a recent study that analyzed data collected by the U.S. Census Bureau in 2000. Results reveal that for both men and women in the United States, heart disease remains the number one killer, victimizing 500,000 people annually. Age, obesity, and inactivity all contribute to heart disease,

Earl Babbie exercise using the mean and range using bivarate tables

Using the MEAN & RANGE to describe the distribution of responses to the question, "How often have you used the library as a place to study.." FOR ALL RESPONDENTS Next CONSTRUCT 2 BIVARIATE TABLES. Each should be TITLED, PERCENTAGE, & INCLUDE THE NUMBER OF CASES ON WHICH THE PERCENTAGES ARE BASED. Be sure to PLACE YOUR IV

Data analysis for Pneumonia Patients

You have been asked to analyze data for all pneumonia patients admitted between January and March 2004 in your hospital. You have been directed to present the following information to the Medical Staff regarding the pneumonia patient population. - Describe the pneumonia population. You have the option to describe the populati