Chi-Square Goodness of Fit test in Excel: Normally Distributed
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Need help performing a Chi-Square Goodness of Fit test to determine whether or not the prices of all 90 cars in the attachment are normally distributed.
Please provide a short write-up in Word that interprets your output and a file that provides the statistical output or calculations in Excel
Please feel free to contact me if you have any questions, can not access the file or a recommendations for the credits.
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Solution Summary
A Chi-Square Goodness of Fit test is determined. This led to the discussion of whether or not the prices of all 90 cars are normally distributed.
Solution Preview
Please see the attached files
Procedure
Step1: Compute mean and standard deviation of the given prices.
Step2: Transform the data to a frequency distribution and find the observed frequencies Oi
Step 3: Standardize the upper boundaries of the frequency table and obtain the theoretical frequencies using standard normal tables.
Step 4: Calculate the table for chi-square
Step 5: Conduct chi-square test
Answer
For the present data Mean = $21,445.53; Standard deviation = ...
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