Use the Test Scores Data Set.Preview the document The data consists of standardized test scores over...

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Use the Test Scores Data Set.Preview the document The dataconsists of standardized test scores over several years. Use thetechniques you have learned to summarize, present, and describe thedata.

Create a confidence interval for the mean score for each year.Use a 95% level of confidence. Clearly explain what the confidenceinterval means. Does each confidence interval include thepopulation mean for all years? Explain why or why not.
The test scores dropped in 2009. Design and run a hypothesistest to determine if the decline represented a statisticallysignificant decrease in the mean test score. Be sure to explain howyou plan set up the test. You will need to decide what you will useas your population. Be sure to explain the result and implicationsof the hypothesis test.
Is there a significant difference in mean test scores betweenmales and females? Between whites and Hispanics? Design and runhypothesis tests to answer these questions. Explain the set up,results, and implications.
Ask your own question about the data and use confidenceintervals or hypothesis tests to answer it.

Write one paper that provides the results from your study. Includean introductory paragraph that describes the data you are workingwith and makes the reader want to know more. Use at least oneparagraph discussing each part of the project. Explain theprocesses using the technical terms used in the text.

Test Data can be found here:https://docs.google.com/spreadsheets/d/e/2PACX-1vSdSY0cbi4CdW1509-B3HVVGL1t8AieqCPw8nroXMXup8q1Rll3huy8qiCzMphB-DsCOlJ6fNsxlzUO/pubhtml

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1code in Rdata readcsvDocumentsTutoringSoftwarerandomdatatestScorecsvcolnamesdata 12 cstudenttestScoreinstallpackagesdplyrlibrarydplyrdata groupbyyear summarisemeanScore meantestScoresdScore sdtestScorenScore nmutateseScore    See Answer
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