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Statistics is a branch of mathematics that focuses on the collection of quantitative data for analysis. Statistics is vital in psychological research because it allows scientists to put collected data into an understandable medium that can both be researched by other scientists, and can be challenged by re-experimentation. This paper will discuss many possible functions of statistics and their uses. The differences and similarities between descriptive and inferential statistics will also be examined with examples provided for each. To understand statistics is to understand psychology, and the formal discipline of psychology relies on statistics for overall understanding of human behavior and scientific study of the human mind.
Their average age was 19.1 years with a standard deviation of 1.5 years. What is the best point estimate for the population mean?
Let sales be the independent variable and earnings be the dependent variable. Draw a scatter plot. Compute the coefficient of correlation Compute the coefficient of determination.
Construct a 99% confidence interval for the population mean tread wear for this type of tire.
The lifetime (hours) of an electronic device is a random variable with the exponential probability density function:
question a national study has determined that people who work full time average 43.4 hours worked per week.assume that
Need to find the value of the Test Statistic and calculate the mean squares for regression and error for the following:
Calculation of the Probability of Finding Floods in Bangladesh
To forecast attendance at an yearly tennis tournament a model has been developed that uses attendance from the previous year and the amount spent for advertising this year.
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In Gallup polls taken at different times, subjects were asked if they owned a gun, and the number of yes responses was recorded for each time period. Is this discrete or continuous? why?
Perform a parametric analysis by assessing the fractional change in the probability of failure with respect to a small change in the mean and standard deviation of selected variable.
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