Lab manual

# Using students t test calculate the range of

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: he pieces of mossy zinc by one at each iteration, until you reach 100 pieces of mossy zinc. Record the mass at each iteration. Calculations: The purpose of these calculations is to give you experience with them. Use Excel, calculating the values below using formulas that you build in the appropriate cells. If there is a built- in Excel function, calculate the same thing using their built- in function in a different cell. Account for any discrepancy between these two values. Repeat the calculations on your calculator as practice for using your calculator; be sure the values all agree. A dicey problem: Calculate the mean, median and mode of your data, the variance, and the standard deviation. Using Student’s t-test, calculate the range of expectation values with 95% certainty. Repeat these calculations both assuming it is a sample, then a population. Plot the distribution of values (relative frequencies). Return to Middle School: Calculate the mean, median and mode of your data, the variance, and the standard deviation. Using Student’s t-test, calculate the range of expectation values with 95% certainty. Repeat these calculations both assuming it is a sample, then a population. Plot the distribution of values (relative frequencies). Check the two extreme values (most overthrown and most under thrown) to determine if these data points can be discarded with 95% certainty. Bloody students! You are a professor, and had a graduate student quit graduate school in a huff. He left behind two sets of data (represented by the above two sets). This was very expensive data to generate, taking a lot of time and (government) money, so you’d rather not have to repeat it, but you do not know if these two sets of data represent different trials of the same thing. Can you reject the “null hypothesis” with 95% certainty? Buns of Mossy Zinc: Using formulas that you input, use the Linear Regression method to calculate the slope and intercept of this data. Also, calculate the R2 value. Use Excel to plot this data. Click on one data point in the graph, and left-click the data. Choose “linear” and have Excel calculate the slope, intercept and R2 value. Are the results the same as yours? Dakota State University Page 92 of 232 Experiment 7: Quantum Mechanics General Chemistry I and II Lab Manual Experiment 7: quantum mechanics Purpose: To understand the relationship between electronic structure and the periodic chart. Purport: To claim, declare, profess or assert. Background: Using HyperChem Introduction: As atoms collide, it is the electrons that interact owing to the simple fact that they are the only subatomic particles that are not confined to the nucleus of the atom. Thus, the structure of the electron cloud around the nucleus is essential to the chemical and physical properties of an element, and the structure of this cloud of electrons is dependent upon the total number of electrons. From this argument, it might seem reasonable to assume that w could identify an e element based on the number...
View Full Document

## This note was uploaded on 09/18/2012 for the course CHEMISTRY 1010 taught by Professor Kumar during the Fall '11 term at WPI.

Ask a homework question - tutors are online