Question: A group of 200 adults aged 21 to 50 were selected from those entering Fit Right Health stores in Washington State, and were randomly divided into two groups. One group was given a herb and the other a placebo. After 6 months, the number of respiratory tract infections in each group were compared. I. What is the pop
The frequency distribution below shows the distribution for suspended solid concentration (in PPM) in river water of 50 different waters collected in September 2011. Concentration (PPM) Frequency 20-29 1 30-39 8 40-49
Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work so I can see how to do this for the future. This one is a good example of what I can do in the future for real estate. Class Frequency 46-48 22 49-51 23 52-54
Construct both an ungrouped and a grouped frequency distribution for the data given below: 211 210 216 213 215 209 210 206 208 204 204 205 213 217 218 215 206 218 214 218
4.200 Use a statistical software package to generate 100 random samples of size n = 2 from a population characterized be a uniform probability distribution (Section 4.9) which c = 0 and d = 10. Compute mean x for each sample and plot a frequency distribution for the 100 mean x values. Repeat this process for n = 5,10, 20 and 50.
Construct a grouped frequency distribution for the following 28 scores using a class width of 4: 39 49 48 43 41 38 55 44 38 54 34 51 36 49 32 43 33 35 49 43 41 34 51 49 40 55 36 42.
1. A cereal manufacturer seeks to test their newest product against a competitor's. A group of 100 children was asked to evaluate each brand, and then to express a preference. To guard against bias, neither the children, nor the technicians serving them, were aware of the order in which they were fed each brand. I. What is the
For homework I did an entertainment survey on three questions. Choose no.1 if you like country music, choose no.2 for hip hop, and choose no.3 for hard rock. I got 24 replies with 13 (54%) for Country music, 5 (21%) for Hip Hop, and 6 (25%) for Hard Rock. answer 1 13 54% answer 2 5 21% answer 3 6 25%
For this assignment use the data below which was taken from a previous online class. Student Age 1 42 2 35 3
See the attached file. 1. Given the situation described, identify the type of sampling involved. A fraternity assigned an ID number to each of its current pledges. Twenty-eight of the numbers are chosen by drawing them out of a hat. Each fraternity member whose number was drawn is asked about his level of alcohol use. (Poi
You should enter your answers/responses directly after the question. There is no need to retype the project. After completing and saving the project, submit your project in the Mid-Term Drop Box. In the course, go to Unit 4 -> Instructor Graded Project -> StatCrunch to access the MM207 Student Data Set. When the page loads you
The frequency table shows the weights in ounces of 30 stones Weight (oz) Number of Stones 1.2-1.6 OZ 5 1.7-2.1 OZ 2 2.2-2.6 OZ 5 2.7-3.1 OZ 5 3.2-3.6 OZ 13 Use the above information to construct a cumulative frequency table for the data.
1. A group of teenagers were monitored closely over a period of several weeks to measure how often they watched violent television programs. The researcher believes that the adolescent male watch more violent television than their female counterparts. a. What is the dependent variable? b. What is the independent variable? c
Consider the following distribution by age groups. #1. complete the table Age frequency relative frequency 10-14 0.04 15-19 20-24 10 25-29 6 30-34
The following is a relative frequency distribution of grades in an introductory statistics course. Grade Relative Frequency A 0.22 B 0.37 C 0.18 D 0.17 F 0.06 If this is the distribution of 200 students, find the frequency of failures: =
See attached data file. COMPLETE PROBLEM 1: Perform a categorical data analysis on the majors of students enrolled in the MBA program. Report on your findings, along with a table showing the frequency distribution and at least one chart (pie chart or bar chart) that illustrates the points raised in your report. COMPLETE PR
Construct a grouped frequency distribution for the data given below: 42 46 52 50 54 51 51 49 54 42 55 49 53 50 55 41 53 52 47 45 High: 55 Low: 41 Range: (55-41=) 14 No width given: ?? This is where I do not know where to go...someone please help from here. Thanks.
Create a grouped Frequency Distribution Chart with the numbers below. The left side of chart has numbers starting at the bottom with 0 thru 12. The graph has eight names listed, and the hours spent practicing per week beginning with Paulo-9; Jane-4; Gary-6; Alba-7; Don-3; John-11; Tyla-8; Katie-5. 1) high - low 2) ran
Using Excel, prepare a frequency distribution from the data you collected Calculate the Standard Deviation of your data. Is this a normal distribution? What are the implications? ----------------------------------------------------------- DATA: 1. Record the time I turned on the TV. 2. Record the time I t
The number of weekly sales calls by a sample of 25 pharmaceutical salespersons is below: 25, 55, 45, 35, 37, 27, 29, 44, 34, 28, 33, 28, 46,31, 38, 41, 48, 38, 27, 29, 37, 33, 31, 40, 50 Construct a histogram in Excel using this data.
The following frequency table summarizes the ages of 100 shoppers at the local grocery store. Age of the shopper Frequency 15-25 15 25-35 30 35-45 25 45-55 15 55-65 10 65-75
1. Consider the following data on distances traveled by people to visit the local amusement park: Distance (miles) Frequency 1-9 15 9-17 14 17-25 10 25-33 8 33-41
Use the data to construct a frequency distribution with a 1st class of 470-486 559 482 490 520 514 498 472 490 523 491 480 490 562 486 491 498 543 506 539 576 508 509 499 515 501 593 512 510 577 533
A video rental store has two video cameras available for customers to rent. Historically, demand for cameras has followed this distribution: Demand Relative Frequency 0 .35 1 .30 2 .20 3 .10 4 .05 What is the expected demand?
1. A researcher wants to determine if teenage drivers of red automobiles are more likely to run a red light than automobiles of any other color. She stands at a busy intersection and records the colors of automobiles which run red lights. I. What is the population? II. What is the sample? III. Is the study observatio
Construct both an ungrouped and a grouped frequency distribution for the data given below: 142 145 147 151 137 141 145 137 140 138 151 140 151 149 144 146 142 139 142 150
The number of items rejected daily by a manufacturer because of defects for the last 30 days are: 20, 21, 8, 17, 22, 19, 18, 19, 14, 17, 11, 6, 21, 25, 4, 19, 9, 12, 16, 16, 10, 28, 24, 6, 21, 20, 25, 5, 17, 8. Complete this frequency table for the above data (note that the class intervals exclude the upper boundaries):
5. You are in charge of a major new product development project for your company. Instead of presenting the details of your analysis, you aggregate all three elements of this product into a simple PERT network to present to senior management as shown below. You would like to introduce simulation as a project management tool f
Annual Salaries: The frequency distribution illustrates the annual salaries, in thousands of dollars, of the people in management positions at the X-Chek Corporation. Salary (in $1000) Number of People 35-40 3 41-46 6 47-52
Should I use a frequency distribution table for this problem? A committee of 4 people is to be formed from 6 doctors and 8 dentits. Find the probability that the committee will consist of A) All Dentists B) Two (02) Dentits and two doctors C) Three (03) doctors and one (01) dentist D) One (01) doctor and three (0