A survey of 2250 randomly selected UJ students revealed that 1130 use social media. a) Find and interpret a 97% lower confidence bound for the proportion of students that uses social media.  b) Use the confidence bound in a) to estimate whether it is plausible that half of all UJ students use social media.  c) If it is believed that at least 45% of UJ students use social media, what sample size is necessary so that the population proportion is estimated to within 0.025 with 97% confidence.

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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.