In 2001​, researchers investigated the effect of​ weed-killing herbicides on house pets. They examined 840 cats from homes where herbicides were used​ regularly, diagnosing malignant lymphoma in 445 of them. Of the 116 cats from homes where no herbicides were​ used, only 20 were found to have lymphoma.   ​a) What is the standard error of the difference in the two proportions?   -Let p1 be the sample proportion of cats with lymphoma from homes where herbicides were used regularly and p2 be the sample proportion of cats with lymphoma from homes where no herbicides were used.

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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.