Blog

Exhibit 2: The average price of personal computers manufactured by MNM Company is $1,200 with a standard deviation of $220. Furthermore, it is known that the computer prices manufactured by MNM are normally distributed.

Which of the following does not need to be known in order to compute the t-critical value?

Refer to Exhibit 1. The standard deviation of assembly time (in minutes) is approximately

Refer to Exhibit 3. The sum of squares due to error is ______________. 

From a population that is normally distributed, a sample of 25 elements is selected and the standard deviation of the sample is computed. For the interval estimation of µ, the proper distribution to use is the

Part I Multiple Choice Questions: (Choose the best answer to complete the question or the statement.) (4 Points each, 60 points total.)

For the following observations, a scatter diagram is plotted. What kind of relationship (if any) does it exist between x and y?  

Please read and confirm the Honor Pledge stated below.   Consistent with Indiana University’s Code of Student Rights, Responsibilities, & Conduct, I agree that my answers to this exam represent my work and my work only. I also understand that all forms of academic misconduct are prohibited including, but is not limited to, all forms of cheating, fabrication, plagiarism, or the use of unauthorized materials.

Choose the correct statement about the following histogram.

Essay Question:  4(b). Use the empirical rule to state the percentage of annual sales between 1255 and 9181 (millions of dollars).