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Category: Statistics

Compute a Goodness of Fit Chi Square. Report and interpret your results including the value of chi square, degrees of freedom and statistical and practical significance.

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PSY212: Graded Assignment #5 Chi Square and Regression This assignment includes conceptual and computations problems regarding regression as well as SPSS. Note that each problem has several parts. For full credit, please respond to each part completely and show all your work. Take a picture and insert your work for all hand computation which are […]

What is the manufacturer of the tire telling us about running a tire higher or lower than the recommended range?

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Confidence Intervals We Use Everyday Discussion Your car’s owner’s manual states that the tire pressure should be 32 Pounds Per Square (PSI) Inch + 3 PSI; what: Is the range of properly operating tire pressure? Is the Error term? Are the ramifications of running your tires at 38 PSI? What is the manufacturer of the […]

What need to include in research report:Clearly state the analyses you intend to do Using R Studio.

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Stats Research Report What need to include in research report: Description of the study / The research question. If you know how the variables were measured, include a short description of that. (3 pts) Clearly state the analyses you intend to do Using R Studio. (3 pts) Report the test results (include all required values, […]

Which red-horse species is most abundant in Minnesota?-Describe the distribution shape of LEN_MM for redhorse overall

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Testing Goodness-of-Fit for a Single Categorical Variable               How many redhorse individuals have been measured for LEN_MM (total length) in this dataset? (1/4 pt) What years does this dataset span? (1/4 pt) Which red-horse species is most abundant in Minnesota? (1/4 pt) Describe the distribution shape of LEN_MM for redhorse overall (1pt).  

Collect sample data and compute an F statistic-Make a statistical decision.

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ANOVA Google Sheets Homework Suppose we are interested in studying the effect of different types of fertilizer on the yield of wheat crops. We have collected data from four different farms, each using a different type of fertilizer. The yield in tons per acre for each farm is shown below: Farm 1: 2.5, 3.1, 3.5, […]

Analyze the residual to check whether there are any potential concerns about the validity of the assumptions. Analyze dispersion effect if there is any.

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Stat 490 Group project In experimental design, designing an experiment is as important as analyzing the results. Through the semester we have learned 4 ways to design an experiment Design an experiment that is BIBD. Design an experiment that is an optimal design. For these two types of designs you need to use R language […]

What is the probability that someone known to have an advanced degree is married with spouse present?

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Statistics Using the data in the Excel file Census Education Data, construct a joint probability distribution for marital status and educational status. You can make diagram in excel What is the probability that a person is divorced and has a bachelor’s degree? What is the probability that someone known to have an advanced degree is […]

Select two other variables and interpret their frequency and percentage. What do they tell you about the data?

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Overview Biostatisticians employ various methods to collect client data. For example, various organizations collect a large amount of public health data that they can analyze and interpret to understand health outcomes and other important client information. A statistically significant clinical study includes statistical summaries of the underlying data and describes how these statistics inform the […]

ˆ Analyze resulting series using sample auto correlations, sample partial auto correlations etc. to understand the correlation structure of the model.

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ASSIGNMENT The goal of this project is to fit several possible time series models to a given dataset , select one that is preferable using model diagnostics procedures and then perform a forecasting task. ˆ Remember that the analysis of the dataset starts with a time plot and, possibly, some scatterplots. Based on them, you […]

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