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The following data shows the daily sales at a petrol station. Calculate the Karl Pearson's co -efficient of skewness. (12 1/2) Quantity sold (in...
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n a quot;bell-shaped curvequot; distribution, _____ occur(s). Question 1 options: a) more than one mode always. b) a normal level of kurtosis c) a...
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(6-(-3.2)^2= , (-13-(-3.2)^2=, (-6-(-3.2)^2= Would you be able to check some answers for me?
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What is the probability that a standard normal random variable is between -0.4 and 1.4?
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consider the population of all 1-gal cans of dusty rose paint manufactured by a particular paint company. Suppose that a normal distribution with...
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The speed at which a box of cereal is filled and sealed is uniformly distributed and takes between 30 to 45 seconds.
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Use the following information to answer questions. Suppose the machine that seals the cereal boxes operates for an average of 13 days before it...
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A consumer organization has reported test data for 50 car models. We will examine the association between the weight of the car (in thousands of...
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A television repairman says that 70% of all house calls are made for service on High Definition (HD) TV sets, and 30% on Standard (SD) TV sets.
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Percentage of Occupancy for Year Table 2 shows the statistics for bed count and inpatient service days that Manatee Bay Health Center reported for...
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A marketing research company is estimating which of two soft drinks college students prefer.
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an insurance company will insure a$50000 diamond for its full value againtst theft at a premium of $400 per year. Suppose that the probanility that...
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Imagine you conduct an experiment to test whether a sample of MBA students performs better in BUS 601 after having taken a course in Excel.
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26% of people in a city eligible to donate blood actually do. You randomly select four donors and ask them to donate blood.
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1. Please write the reference for this journal article using correct APA 6th referencing style. (1 mark) Q2. What was the research hypothesis of this...
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Assume a sample size of n=20. Draw a picture of the distribution of the t statistics under the null hypothesis.
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A random sample of 250 commuting employees found that why spend an average of $2000 a month on gas. Suppose we know the standard deviation of the...
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A data set has n=10 pairs of X and Y values. This data has SSx=10, SSy=20 and SP=10. Compute the Pearson correlation and explain.
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The demand for travel is quite sensitive to price. Typically, there is an inverse relationship between demand and price; when price decreases, demand...
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Kendra compiles the survey results, and she notices that 72% of participants reported they are dog owners.
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Normal Probability Distribution Question The speed of cars passing through a checkpoint follows normal distribution with =62.6 miles per hour and...
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Identify the class width. Identify the midpoint of the first class. Identify the class boundaries of the first class. Give the relative frequency...
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Need assistance with setting up the problems below. JayHawks Fan Shop sells sports gears of KU. The shop sources a basketball jersey from a Texas...
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How can you use statistics to help you better understand human behavior? Compare the three most common research methods and types of statistics ?
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What are some differences between primary and secondary data?
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Please help me, can you explain, What is the difference between a z-test and a t-test (i.e., when would you use each one)?
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what is the difference between statistical and non statistical sampling
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This is a practice question and wanting to compare results with another, could you give me your findings that I might compare, thank you!
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This is an practice question I am working on can you help me so I may compare my results, thank you?
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deductive arguments and why? How do critical thinkers determine the relative strength of how well an argument demonstrates or supports its conclusion?...
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hi.... please give the answer.. find the question in attachment.
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Two boats, the Prada (Italy) and the Oracle (USA), are competing for a spot in the upcoming America's Cup race. They race over a part of the course...
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during the year you can male an average of 125 bowls with a standard deviation of 5 (normally distributed) .
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A random sample of 10 subjects have weights with a standard deviation of 11.165311.1653 kg. What is the variance of their weights?
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The mean salary is often used to describe the salaries of employees of a company. However, the median salary may be a better measure of the salaries...
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An organizational psychologist measures levels of job satisfaction in a sample of 30 participants.
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1) A sample of 49 observations is taken from a normal population. The sample mean is 55 and the sample standard deviation is 10. Determine the 99%...
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Chapter 77.17Each year,Forbesmagazine publishes a list ofthe world's richest people.
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A study was designed to investigate the effects of two variables - (1) a student's level of mathematical anxiety and (2) teaching method - on a...
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BACK TO DESCRIPTIVE STATISTICS: LET'S TEST OUR PHYSICS EXAMPLE USING STATISTICS. STICK A SMALL PIECE OF TAPE TO A HARD SURFACE TO ACT AS A TARGET.
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Turning forces are not balanced 2. Slips and skids = flying sideways 3. Stall definition: cl= maximum 4.
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A professor believes that the mean mark of final exam (out of 100) of his subject is more than 60.
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Describe a measurement that you used and assess whether it may or may not have a normal distribution. For example, you may have measured the amount...
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I want to test the following. Dependent variable are education and income.
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Make a histogram of the number of complaints received each week. As your bin range use the values 60, 80, 100, 120, 140, 160 listed in the Excel file....
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A researcher had originally planned to conduct a study while allowing only 1% Type 1 error. However, now he has decided to permit 5%Type error.
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Using this link: https://ucr.gov/crime-in-the-u.s/2016/crime-in-the-u.-2016/tables/table-12 I am trying to perform a one sample t-test.
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Two groups are tested in an experiment and the results for the measurements are: Group 1: 5, 7, 5, 3, 5, 3, 3, 9 Group 2: 8, 1, 4, 6, 6, 4, 1, 2 Test...
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Compare two of the linear programming models. Be sure to address the following:
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Three characters, A, B, and C, armed with guns, suddenly meet at the corner of a Washington, D. street, whereupon they naturally start shooting at...
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