A frequency distribution Is commonly represented in tabular format and can summarize data for either categorical or numerical variables.
This type of table presents data for more than one categorical variable over usually five or less levels.
Basic Statistics Name: Test 1 1) A test worth 100 points was given to a class with the following results: Midpoint Interval Freq. Rel. Freq. 89.5 - 99.5 5 79.5 - 89.5 8 69.5 - 79.5 17 59.5 - 69.5 7 49.5 - 59.5 3 A) Fill in the Midpoint column and the Relative Frequency column in the above table. B) Draw t
Two airlines that are merging and the new president, who has to quickly get a handle on the maintenance costs for their entire fleet of planes. The president must act quickly, but accurately, to make the decisions necessary to create a financially sound company. 1. Prepare Peg Young's response to Stephen Ruth. 2. Give suppor
Please see the attached file for the complete problem description. 1. Prepare a frequency distribution of ungrouped data including cumulative frequency (tally) for the table of approved 2. Calculate the mean, mode and median of the table of approved 3. Calculate the range, variance and standard deviation table Approvals 4.
A frequency distribution is shown below. Complete parts (a) through (e). The number of dogs per household in a small town. Dogs 0 1 2 3 4 5 Households 1185 425 163 45 28 15 x P(x) 0 1 2 3 4 5 (a) Use the frequency distribution to construct a probability distribution. (round to the nearest thousandth as
1. 49, 34, and 48 students are selected from the Sophomore, Junior, and Senior classes with 496, 348, and 481 students respectively. Identify which type of sampling is used and why 2. The name of each contestant is written on a separate card, the cards are placed in a bag, and three names are picked from the bag. Identify whi
Using Excel, please set these problems up in order to create the proper graphs. Enter the following data into Microsoft Excel, and answer the questions. 1. Twenty employees of Bright Idea Lightbulb Company were asked if they approved or disapproved of the new floor manager. Below are their responses. Let A represent appro
How to Generate a Frequency Distribution and a Z-scores using Microsoft Excel? Using the following data: Month Year 1 Year 2 Year 3 Year 4 1 18,000 45,100 59,800 35,500 2 19,800 46,530 30,740 51,250 3 15,700 22,100 47,800 34,400 4 53,600 41,350 73,890 68,000 5 83,200 46,000 60,200 68,100 6 72,900 41,800 55,200 61,1
A study of hours spent in training (per year) at a company was conducted with 49 participants. The mean number of hours spent in training was reported to be 89.25 hours. The standard deviation was 13.44 hours. 1. Calculate a 95% confidence interval for the average time spent in training per year at this firm. 2. Create a g
Probability Distribution - Using 100 pennies, complete the following activities: 1. Spread 100 pennies across a table ... [See the attached Question File.]
Can you help me specifically with Part B - especially #3 & #4? Part A Directions: Using 100 pennies, complete the following activities: 1. Spread 100 pennies across a table 2. Separate into two groups based on heads and tails 3. Total the number of heads and number of tails 4. Compute the percentage of heads and the perce
1. Suppose the following data are prices of market goods involved in household transportation for the years 1994 through 2002. Using 1998 as a base year, compute aggregate transportation price indexes for this data. Year Items 1994 1995 1996 1997 1998 1999 2000 2001 2002
Form a frequency, Display the information as a histogram, calculate an estimate of the mean and sample standard deviation if this data, Determine a 95% confidence interval for the population mean (i) what is the probability that one person has an allergic reaction ? (ii) Using the Poisson approximation to the binomial, what is the probability that no one in a group of 120 patients has an allergic reaction ?
Question (1): The data in the table below relate to cadence. Form a frequency distribution using the classes 70 - 79.9 , 80 - 89.9 ...., 130 - 139.9 Display the information as a histogram. Use your frequency table to calculate an estimate of the mean and sample standard deviation if this data. Determine a 95% confidence int
Why is it important to be familiar with frequency distributions in the business world? Give examples by using a distribution chart from a set of data.
See attached file for full problem description. 1. If the scores in a sample have been organized into a frequency distribution table, the number of scores (n) can be obtained by adding the values in the f column. True False 2. To find â?'X for the scores in a frequency distribution table, you simply
Place the following scores in a frequency distribution table. Describe the difference in appearance between a bar graph and a histogram, and describe the circumstances under which each type of graph should be used. What is the shape of the distribution. Find each of the percentiles and percentile ranks requested.
1. Place the following scores in a frequency distribution table. Include columns for proportion (p) and percentage (%) in your table. The scores are: 4, 6, 2, 9, 8, 8, 5, 7, 7, 3, 6, 6, 7, 4, 5, 8, 6, 5 2. Under what circumstances should you use a grouped frequency distribution instead of a regular frequency distribution?
Question 1 Multiple Choice In a stem and leaf plot of numbers with five digits, the stem has two digits. In the number, 42096, the leaf is: 420 209 096 426 Question 2 Multiple Choice An advantage that a histogram has over a pie chart is that: When two categories are close in size,