1. For each of the definitions below, give me the mathematical symbol and or APA symbol, from our textbook that corresponds to that definition. a. The sample mean: or b. The estimated population standard deviation: or c. The population mean: d. The population standard deviation: e. Raw score value: f. Standard Error of the Mean: g. Sample size: 2. A researcher investigating the speed with which a sample of 50 participants completes an analo- gies puzzle obtains a sample mean of 137.50. She knows that the for the population of people who have taken this test, the mean is 130 and the population standard deviation is 18 a. What is the sample mean z score for this study? b. What percent of the time would expect to get a z score above this value? c. What percent of the time would you expect to get a z score below this value