A random sample of 50 medical school applicants at a university has a mean raw score of 31 with a standard deviation of 2.5 on the multiple choice portions of the MCAT.  A student says that the mean raw score for the school’s applicants is more than 30.  At  is there enough evidence to support the student’s claim, using a significance level of 0.05?   Write the claim mathematically (you may use x to represent the mean)   Determine the null hypothesis   Determine the alternative hypothesis   Find the standardized test statistic, z, round to 3 decimal places.     Find the P-value, round to three decimal places.     Decide whether to reject or fail to reject the null hypothesis.    Interpret the decision in the context of the original claim

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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.