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A research study has stated that the taxes paid by individuals is correlated at a .78 value with the age of the individual. Given this, the scatter plot would show points that would fall on straight line on a slope equal to .78.
The diameters of oranges in the certain orchard are normally distributed with the mean of 5.26 inches and a standard deviation of 0.50 inches.
A researcher is interested in whether social assertiveness might be influenced by training procedures. Two groups of college sophomores are randomly selected. Group A subjects are assigned to the "training sessions" and Group B subjects do not rec..
Compute a 95% confidence interval for the population mean, based on the sample 25, 27, 23, 24, 25, 24 and 59. Change the number from 59 to 24 and recalculate the confidence interval.
A sample of 25 students enrolled in the university indicates that X (bar) = $315.4 and s = $43.20.
What is the sampling distribution of sample means? What is the mean of the sampling distribution of sample means?
in a research project intended to gather data on the effects of type of study method on examination performance
consider the two variables of a persons height and weight. which variable height or weight would you use as the input
Ten different people's income tax returns are done by each of the three software packages and the time is recorded for each. Which of the following is true?
a population is estimated to have a standard deviation of 13. we want to estimate the population mean within 3 with a
15% with salmonella, and 13% with both. What is the probability that a tested chicken was not contaminated with either kind of bacteria?
question a process for the manufacture of penicillin was studied. there were five variants of the basic process being
question a psychologist is examining the educational advantages of a preschool program and suspects that there will be
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