A humane society claims that less than 71% of households in a certain country own a pet. In a random sample of 400 households in that country, 276 say they own a pet. At alpha = 0.01, is there enough evidence to support the society's claim? What is the standardized test statistic z? What is the p-value? Do you reject or fail to reject the null hypothesis? Why? How do you enter this problem into a ti84 calculator?

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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.