Category: Statistics

An outcome measured on a five-point scale ( not at all to al

Statistics

An outcome measured on a five-point scale ( not at all to al

Posted By Bruce Simons

An outcome measured on a five-point scale ( not at all to always )… is an example of an ordinal variable. has a behavior problem when it comes to residuals. should be analyzed by logistic regression

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Log transform a variable… if the values are too big. if th

Statistics

Log transform a variable… if the values are too big. if th

Posted By Bruce Simons

Log transform a variable… if the values are too big. if the residuals (error) get bigger for bigger values of the variable. if you don’t get statistical significance. if non-parametric tests are ina

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The MSU- SASE (MSU- System admission Scholarship Examination

Statistics

The MSU- SASE (MSU- System admission Scholarship Examination

Posted By Bruce Simons

The MSU- SASE (MSU- System admission Scholarship Examination) scores of sample 9 students who joined the university during the second semester of SY 2009-2010 were found to be 67, 92, 90, 79, 69, 62,

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the student’s final grades in Math 17, Philo 1, Englsih comm

Statistics

the student’s final grades in Math 17, Philo 1, Englsih comm

Posted By Bruce Simons

the student’s final grades in Math 17, Philo 1, Englsih communication 1 and Bio 1 are 2.0, 2.25, 1.75 and 2.0, respectively. If the respective credits for these subjects are 6, 3, 3, and 4 units, dete

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In a large clinical trial of 500 patients treated with a new

Statistics

In a large clinical trial of 500 patients treated with a new

Posted By Bruce Simons

In a large clinical trial of 500 patients treated with a new drug, 40 reported sideeffects how many patients would need to be sampled to estimate the desired proportion to within a margin of error of

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Number of avalanche fatalities The numbers of avalanche fata

Statistics

Number of avalanche fatalities The numbers of avalanche fata

Posted By Bruce Simons

Number of avalanche fatalities The numbers of avalanche fatalities for the last nine seasons were reported as 1,1,1,5,5,5,5,8,10. Roughly what type of distribution is this? a. normal b. positively ske

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The sum of squared deviations is minimum when taken from____

Statistics

The sum of squared deviations is minimum when taken from____

Posted By Bruce Simons

The sum of squared deviations is minimum when taken from___________. (a) Mean (b) Mode (c) Median (d) All of above

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Dimension reduction describes loss of precision. describes f

Statistics

Dimension reduction describes loss of precision. describes f

Posted By Bruce Simons

Dimension reduction describes loss of precision. describes factor analysis. is an example of ANOVA. is a weight-loss program.

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Many samples, each of 100 observations, are drawn from a pop

Statistics

Many samples, each of 100 observations, are drawn from a pop

Posted By Bruce Simons

Many samples, each of 100 observations, are drawn from a population in which there is a correlation of 0.70 between two variables. How often would you expect to find a statistically significant correl

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A student randomly surveyed n = 36 other students and found

Statistics

A student randomly surveyed n = 36 other students and found

Posted By Bruce Simons

A student randomly surveyed n = 36 other students and found that the mean amount of money spent on texts was x = $121.60. If the standard deviation of the population was = $6.36, find the 90% confi

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