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Question 1 Which of the following indicates how many observations fall into various categories?A.The frequency table B.The sample table C.The tabulation scale D.The Likert scale Question 2 Which of the following statements is true regarding the data set 10, 10, 10, 10, and 10?A.The range is zero B.The standard deviation equals zero C.The interquartile range equals zero D.all of the above Question 3 A sample of 20 observations has a standard deviation of 4. The sum of the squared deviations from the sample mean is:A.304 B.400 C.288 D.320 Question 4 Data that arise from counts are called:A.counted data B.discrete data C.nominal data D.continuous data Question 5 Which of the following correctly describes the relationship between a sample and a population? A.A sample is a group of subjects selected from a population to be studied. B.A population is a group of samples that may or may not be included in a study C.A population and a sample are not related. D.A sample is a group of populations that are subject to observation. Question 6 What is the term for a characteristic or attribute that can assume different values?A.exponent B.sample C.variable D.datum Question 7 If a value represents the 95th percentile, this means thatA.there is a 5% chance that this value is incorrect B.95% of all values are below this value C.95% of the time you will observe this value D.95% of all values are above this value Question 8 Which of thefollowing are the three most common measures of central location?A.Mean, median, and variance B.Mean, variance, and standard deviation C.Mean, median, and standard deviation D.Mean, median, and mode Question 9The average score for a class of 30 students was 75. The 20 male students in the class averaged 70. The 10 female students in the class averaged:A.85 B.75 C.70 D.60 Question 10 A histogram that is positively skewed is also calledA.symmetric B.balanced C.skewed to the right D.skewed to the left Question 11Gender and State are examples of which type of data?A.Continuous data B.Ordinal data C.Categorical data D.Discrete data Part 3 of 3 - Question 19The scatterplot is a graphical technique used to describe the relationship between two numerical variables. True False Question 20 Individual observations within each category may be found in a frequency table. True False
Treating Chronic Fatigue Syndrome Patients with chronic fatigue syndrome were tested, then retested after being treated with fluorocortisone.
Use the auxiliary variable approach to model this problem and write a short memo to the marketing manager explaining the solution and sensitivity information.
The national sporting goods association conducted a survey of persons 7 years of age or older about participation in sports activities the total population in this age group was reported at 248.5 million with 120.9 million male and 127.6 million f..
Which of the following is the correct set of probabilities for X and if a student is selected at random, the probability he or she is either a Junior or a Senior
That will reveal the interval estimate for the proportion of people who like cats within a target population of 60,000 people. How would you interpret the results?
What is the probability that sheer guesswork yields betwenn 25 to 30 correct answers for the test (assume the student has no knowledge of the problems). Be sure to justify why you can use the method you do.
Why do we use graphical displays of the data from our research, such as Pareto Charts, Bar Charts, Pie Charts, Flow Charts, or Process Control Charts?
What must be true about the data sets to make the confidence intervals you constructed in parts (a) and (b) valid?
a) Test whether there is a difference between attitudes in the 2 cities. Use a 95% alpha. b) What does your result say about attitude consistency across cities?
Find out how to minimize cost of meeting demands in Houston and Tampa.
In each of the following cases. find the mean , variance and standard of the sampling distribution of sample proportion p.
Test the claim that the mean weight loss is greater than 0. Based on these results does the diet appear to be effective. Does the diet appear to have practical significance.
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