Calculus and Above

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A researcher wishes to test the claim that there is a
A researcher wishes to test the claim that there is a difference in the distribution of ages of elementary school, high school, and community college teachers. Teachers are randomly selected from each… read more
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A newspaper reporter wants to estimate the mean age of all
a newspaper reporter wants to estimate the mean age of all women applying for marriage licences. She wants to be 95% confident that her estimate has an error of at most 1.5 year. its known from experi… read more
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Here is data representing the per capita GDP (income per
Here is data representing the per capita GDP (income per person basically) and Life Expectancy for various countries (well. . Puerto Rico is in there too .. Hmmm) Your job: Investigate the relationshi… read more
R.R. Jha
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I have a question. The following data shows annual income,
the following data shows annual income, in thousands of dollars, categorized according to level of education. test the claim that the three categories have the same mean … read more
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E The human resources department of a consulting firm gives
eThe human resources department of a consulting firm gives a standard creativity test to a randomly selected group of new hires every year. This year, 60new hires took the test and scored a mean of 11… read more
GLENN GILONGOS
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I have a question about excel problem. There are thousands
GLENN GILONGOS
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1. University of Maryland University College is concerned that
1. University of Maryland University College is concerned that out of state students may be receiving lower grades than Maryland students. Two independent random samples have been selected: 165 observ… read more
Ryan
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a) GDP per capita ( this time with 10 groups )– histogram 1.Construct
a) GDP per capita ( this time with 10 groups )– histogram 1.Construct a 95% confidence interval for the mean Inflation 3. Does the data support the hypothesis that Christian countries are wealthier (h… read more
Chirag
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16.100 Xr16-100 The president of a company that manufactures
16.100 Xr16-100 The president of a company that manufactures car seats has been concerned about the number and cost of machine breakdowns. The problem is that the machines are old and becoming quite u… read more
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I Calculated The Sample Mean For 12 Randomly Selected High
I calculated the sample mean for 12 randomly selected high school seniors' test scores. The mean was 908.3 and the sample standard deviation was 305.4. Can you construct a 99% confidence interval for … read more
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1. Do mental health counselors with doctoral degrees earn a
1. Do mental health counselors with doctoral degrees earn a higher yearly income than those with masters degrees 5 years post graduation? Provide the IV, DV, Covariate, and best method of analysis. (P… read more
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A suburban hotel derives its gross income from its hotel operations
For John Only- Due date for assignment is 20 SEP 2012. Supporting data for questions 1,2, and 3 can be found at the following link: http://www.mediafire.com/?a6b6h10mwpqs9sq 1. A suburban hotel derive… read more
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Given the linear correlation coefficient R and the sample N
Question 1 of 20 Given the linear correlation coefficient r and the smaple size n, determine the critical values of r and use your finiding to state whether or not the given r represents a significant… read more
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Please present your answer under each part of a question. You must show adequate work in order to receive any partial credit. Please do not use any red fonts. If you do some work in excel (which you s… read more
SusanAthena
Master's Degree
Master's Degree
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22) What parametric test is equivalent to the nonparametric
22) What parametric test is equivalent to the nonparametric Spearman's rank test? A. T-test of correlation coefficient B. T-test of two sample means C. T-test of one sample mean. D. T-test of two samp… read more
SusanAthena
Master's Degree
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1. The director of marketing at Reeves Wholesale Products is
1. The director of marketing at Reeves Wholesale Products is studying monthly sales. Three independent variables were selected as estimators of sales: regional population, per capita income, and regio… read more
Chirag
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In order to determine the effect of a certain oral contraceptive
In order to determine the effect of a certain oral contraceptive on weight gain, nine healty females were weighed prior to the start of the medication, and again at the end of the 3-month period. The … read more
SusanAthena
Master's Degree
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I am doing a quantitative comparative study on recess and academic
I am doing a quantitative comparative study on recess and academic achievement. I basically want to figure out if having or not having recess has any affect on students' academic achievement tests as … read more
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