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For this project you will choose one region and perform a hypothesis test for that region. The following data is for the Northeast: New Jersey
For this project you will choose one region and perform a hypothesis test for that region. The following data is for the Northeast: New Jersey
We are looking to answer the following question. Has the average winter temperature for been colder than the past winters?
Our hypothesis is going to be that the average winter temperature has been colder this winter. Test the claim at a level of significance.
Note: We defined winter weather as January, February, and March. For consistency, consider the average temperature in Fahrenheit from each January, February, and March from for your Home State I have included the average winter temperatures for states where each state represents the regions of the lower Continental US
Use the following chart to calculate the the population average for the given data set for the Northeast: New Jersey
Year Jan Feb Mar
Use the following chart to calculate the xaverage of the sample for the given data set for the Northeast. New Jersey
Year Jan Feb Mar
What type of hypothesis test do we run? State the Null and Alternate hypotheses:
Ho : Ha :
Is this a right, left or twotailed test? Identify the rejection region.
Is the critical value a
z or t
Why?
What is the value?
Use technology to find the calculated value of zvalue or tvalue or the pvalue. State these below. Make sure to identify if you use zvalue, tvalue, or pvalue.
Do we reject or not reject the null hypothesis?
To determine, compare pvalue to the alpha, or the ztscore value to the critical value and make your decision accordingly.
Use the following chart to calculate the the population average for the given data set for the Northeast: New Jersey
tableYearJan,Feb,Mar
Use the following chart to calculate the average of the sample for the given data set for the Northeast. New Jersey
tableYearJan,Feb,Mar
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