A United Nations report shows the mean family income for Mexican migrants to the United States is $26,700 per year. A FLOC (Farm Labor Organizing Committee) evaluation of 21 Mexican family units reveals a mean to be $28,450 with a sample standard deviation of $10,850. a. State the null hypothesis and the alternate hypothesis.   b. State the decision rule for 0.01 significance level. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)   c. Compute the value of the test statistic. (Round your answer to 2 decimal places.)   d. Does this information disagree with the United Nations report? Apply the 0.01 significance level.

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.