I have lots of data -21 people with various info on each- I need to compare data for each via gender, age, etc.. but my problem is that I need to do this by using standarad deviations- I have tried numerous sites to figure how to do this- But every site uses charts- I need an example that is similar to my problem-using #'s not c
In 1996 a total of 14,968,000 taxpayers in the US filed their individual tax returns electronically. By the year 2002 the number increased to 46,282,200. What is the geometric mean annual increase for the period. I tried doing this question but I calculated this question and some examples in the chapter but my answer is clo
Mary's mean average of five exams is 72. Find the sum of her scores.
2.A group of 25 subjects have their diastolic blood pressures measured. The results, in SPSS are: |-----------|-------|--------| |N |Valid |25 | |-------|--------| | |Missing|0 | |-----------|-------|--------| |Median |85.00 | |-------------------|--------| |Mode |82.00 | |--
The following data give the weekly amounts spent on groceries for a sample of households In 1996, a total of 14,968,000 taxpayers in the united states filled their individual tax returns Listed below are the salaries for the new york yankees for the year 2000 A study is made by the recording industry in the united states of t
2. (no explanation required) suppose we have a set of sample data. For each quantity listed below, could the quantity be negative? (For each quantity, answer Yes or No.) Quantity Possibly Negative? (Yes or No) Arithmetic Mean Standard Deviation Frequency Median Mode Range First Quartile Interquartile Range
1. What are the characteristics of a normal distribution? 2. List some examples of continuous data. 3. What is the name of the distribution that measures the number of occurrences of an event during specified intervals? 4. What would be the characteristics of a binomial distribution? 5. A population consists of t
Refer to the baseball 2000 data attachment. a. At the .10 significance level, is ther a difference in the variation of the number of stolen bases among the teams that play their home games on natural grass versus artificial turf? b. Create a variable that classifies a team's total attendance into three groups: less than 2.
During March, the activities of Evergreen Landscaping included the following transactions and events, among others. Which of these items represented expenses in March? Explain. a. Purchased a copying machine for $2,750 cash. b. Paid $192 for gasoline purchase for a delivery truck during March. c. Paid $2,280 salary to an em
How do I prepare 4 -7 power point slides using the descriptive statstics that I currently have? (See attached file for full problem description) --- Descriptive Statistics There are several measures of central tendencies that can be applied to the data that was collected for the Small Business Owners Day Care Meal Bu
Listed below are the salaries, in $000, for a sample of 15 chief financial officers in the electronics industry. $516.0 $548.0 $566.0 $534.0 $586.0 $529.0 546.0 523.0 538.0 523.0 552.0 486.0 558.0 574.0 a. Determine the mean, median, and standard deviation
I. Explain what the phrase 95% confident means when we interpret a 95% confidence interval for mu. a. In repeated sampling, 95% of similarly constructed intervals would contain the value of the population mean. b. 95% of similarly constructed intervals would contain the value of the sampled mean. c. 95% of the observations in
A new weight-reducing technique, consisting of a liquid protein diet, is currently undergoing tests by the Food and Drug Administration (FDA) before its introduction into the market. A typical test performed by the FDA is the following: The weights of a random sample of five people are recorded before they are introduced to the
A random sample of 175 measurements possessed a mean x-bar=8.2 and a standard deviation s=0.79 a.) Form a 95% CI for mu. b.) Test H0:mu=8.3 against Ha:mu not equal 8.3 Use alpha=0.05. c. Test H0:mu=8.4 against Ha:mu not equal 8.4 Use alpha=0.05.
Solve the problem and show solution You are given the following population data of the highest IQ's at Really Bright University. 145 168 163 162 185 164 156 194 168 152 168 146 157 173 156 174 136 134 140 171 207 172 153 169 154 Determine the following: 1. Median 2.
When a female who is a carrier of color-blindness and a male who does not carry color blindness parent a child, the probability is 0.25 that a child born will be a color-blind male. Assume one such couple will have 6 children. Let X = the number of color-blind males parented by this couple. a. Find the probability that this
Refer to the attachment. a. Develop a 90 percent confidence interval for the mean percent of the population over 65 years. b. Develop a 90 percent confidence interval for the mean energy use.
An air traffic control error is said to occur when planes come too close to one another. The following data represent the number of air traffic control errors for a random sample of regions around the US for fiscal years 1996 and 2000. a. Compute the sample mean number of errors in 1996 and 2000 b. Compute the median numb
Please find the questions in the attached document. 1. To get through a page in a statistics book can take three or four times longer than to get through a page in a nonnumerical book. True-False Basic math problems: 2. -12 + 8 = 3. 4 * (-5) = 4. -5 / -4 = 5. 3 * 7 - 6 = 6. 4^3 = 7. ((8 + 3) * 2) - 5 =
Will a k-period weighted average produce a lower mean square error (MSE) when making predictions than a weighted average derived from k minus 1 periods? If so, why or why not?
Questions (1) explain in detail what each of them do. ? Descriptive Measures ? Probability ? Sampling Distributions ? Linear Regression ? Time Series Forecasting ? Index Numbers ? Decision Making (2) explain the advantages and disadvantages each of them have if they are attempted to be used by a finance departme
Each of the three measures of central tendency-the mean, the median, and the mode-are more appropriate for certain populations than others. For each type of measure, I need two additional examples of populations where it would be the most appropriate indication of central tendency. I need to find the mean, medi
Answer THREE questions in total. ONE question from SECTION A and TWO questions from SECTION B. The solutions have to be typed not scanned. Question A1 The total body calcium (expressed as a percentage of the mean normal value) was determined for a random sample of 60 rheumatoid arthritis patients receiving prednisolone treat
Armstrong Faber produces a standard number-two pencil called Ultra-Lite. Since Chuck Armstong started Armstrong Faber, sales have grown steadily. With the increase in the price of wood products, however, Chuch has been forced to increase the price of the Ultra-Lite pencils. As a result, the demand for Ultra-lite has been fairly
30. Determine the estimated mean of the following frequency distribution. Class Frequency 0 up to 5 2 5 up to 10 7 10 up to 15 12 15 up to 20 6 20 up to 25 3 93. Each person who applies for an assembly job at Carolina Furniture, Inc. is given a mechanical aptitude test. One part of the test involves assembling a dres
71. Refer to the OECD data (Appendix L), which reports information on census, economic, and business data for 29 selected countries. a. Compute the mean, median, and mode for the variable employment. Which measure of central tendency seems to be most representative of the data? b. Compute the mean, median, and mode of the
70. Refer to the Baseball 2000 data (Appendix K), which reports information for the 30 Major League Baseball teams for the 2000 season. a. Determine the mean and the median team salary. Does one measure of central tendency seem better, or more representative, than the other? b. Determine the mean and the median attendance
30. Determine the estimated mean of the following frequency distribution. Class Frequency 0 up to 5 2 5 up to 10 7 10 up to 15 12 15 up to 20 6 20 up to 25 3 93. Each person who applies for an assembly job at Carolina Furniture, Inc. is given a mechanical aptitude test. One part of the test involves assembling a dresser
I run a molding company and ran a regression analysis of monthly sales looking at monthly sales of prototype parts, travel expenses and advertising expenses. I want to see if any of these variables effect molding sales or help predict molding sales. N = 30. Any help with reading the results, main findings, what in the heck
#1) The sample standard deviation is a measure of: a.) center tendency b.) variability c.) relative position d.) all of the above #2) A random sample of 100 experimental unitsis one selected from the population in such a way that every different sample of size 100: a.) have different chances of selection or