A process that polishes a mirrored surface leaves an average of 3 small flaws per 8 m2 of surface. The number of flaws on an area of surface follows a Poisson distribution.

a) What is the probability that a surface with area 3 m 5 m will contain more than 5 flaws?

b) What is the probability that a surface with area 2 m 3 m will contain no flaws?

A teacher of statistics wanted to compare two methods of teaching introductory statistics. One method relied heavily on the teaching of the theory behind statistics (theory method). Another method was labeled the cookbook method because it consisted of teaching the students various statistical tests and informing them as to when to use each test. The researcher found that a leading engineering school was using the theory method in all of its introductory statistics classes and that a state teachers' college was using the cookbook method in all of its classes. At the end of each semester, he administered a standardized test on the applications of statistics to the statistics classes of both schools. The results of this testing indicated the classes that received the theory method was far superior to the classes that received the cookbook method. The researcher concluded that the theory method was the superior method and should be adopted by teachers of statistics.

What is the IV: Teaching method

How many levels are there (of IV): 2

What are these levels: The levels of the independent variable are the theory method and the cookbook method

What is the DV:

How is the DV measured:

Briefly state the result:

Is (are) there confounding variable(s), describe:

"Unconfound" the study:

1. An experiment randomly assigned 10 children to each of two groups. One group was given training in creative problem solving and the other was not. All children were then given a series of problems and asked to generate possible solutions. Below are the summary statistics for the number of solutions generated for both groups. Is there a signicant difference in the number of solutions generated between the training group and the group without training at a signicance level of .05? Table B1 mun\" "manna\" (a) Compute the mean and standard deviation for the training group and no training group, respectively. (4 marks) (b) State the null hypothesis and the alternative hypothesis. (2 marks) (c) Compute the test statistics (10 marks) (d) State your decision and interpret the results. (4 marks) Question: 1 (Objective: To understand the concepts used in computer Simulation Statistics Calculations) Manually calculate the following System Statistics for Single Server Queue System running for 20 minutes. a. Avg. Time In System, TIS (Max and Min) b. Avg. Time in Queue, Q. (Max and Min) c. Utilization of the Server d. Utilization of the Queue (Time weighted Avg. Number in the queue) e. Total number of parts produced during the total simulation time (14 min) Number of parts produced / hour: Throughput. g. What is an Event Calendar? Illustrate with a small example how does it work. Part Inter Arrival Service SST TIQ DT TIS Max Arrival Time Time Service Time Depar- Time Num- TIME (LAT) (ST] Start In ture In ber (LAT) Time Queue Time System In Q 0 5 1 2 2 2 5 3 4 ry 1 5 Table 1 Graph of the System Capacity Utilization vs. Simulation Time (Show Bt & Qt) CapacityExercise 2 - Statistics calculations - Develop a software that gets a list of students' marks and find: the average, the maximmtl, and minimum mark. - The main program bloc gets students marks from the user (stored in a list) and calls a function to get the average, the maximum and minimum values. It also displays the results to the user. - The function receives a list and obtains the average. minimum and maximum. The result returned is a list with three values. Excel Online Structured Activity: ROE and ROIC Baker Industries' net income is $27090, its interest expense is $6000, and its tax rate is 40%%. Its notes payable equals $26000, long-term debt equals $80000, and common equity equal $240800. The firm finances with only debt and common equity, so it has no preferred stock, The data has been colleded in the Microsoft Excel Online file below. Open the spreadsheet and perform the required analysis to answer the questions below. X Open spreadsheet What are the firm's ROE and ROICT Round your answers to two decimal places. Do not round moringed to 11.25(5) ROTC