According to the 2010 Census, 16% of people in the United States are of Hispanic or Latino origin.  One Vigo County supervisor believes her county has a lower proportion of Hispanic people than the nation as a whole and questions the validity of the Census.  She looks at the county's most recent survey data, a random sample of 400 county residents, and found that 44 of those surveyed are of Hispanic or Latino origin. a. Identify an appropriate null and alternative hypothesis for a test to be conducted by the county supervisor. b. Would the hypothesis test be one or two tailed?  Z or T test? Upper or lower? Explain your response.

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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.