It is known that cellular phone batteries produced by a ceratain factory have lifetimes that follow a normal distribution. The average lifetime of the batteries is known to be 2.4 years with a standard deviation of 0.32 years. A random sample of size 16 is to be taken. a.) What is the mean of the sampling distribution of the sample means? b.) What is the standard error/ standard deviation of the sampling distribution of the sample means? c.) What is the distribution of the sampling distribution of the sample means? T-Distribution or Normal Distribution?

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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.