A fertilizer manufacture buys a certain raw material by weight. Each batch of raw material purchased is weighed, and the weight is recorded to the nearest pound. It is assumed that the round-off error is uniformly distributed in the interval from –0.6 to +0.6. Using the information above, compute the variance? Select one: a. 0.6447 b. 0.4157 c. 0.12 d. 0.36

Use the following returns for X and Y. Year Returns X Y 1 21.9% 26.7% 2 −16.9 −3.9 3 9.9 28.7 4 19.8 −14.8 5 4.9 32.7 Calculate the average returns for X and Y. Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16. Calculate the variances for X and Y. Note: Do not round intermediate calculations and round your answers to 6 decimal places, e.g., .161616. Calculate the standard deviations for X and Y. Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.

Many universities use a student's ACT score to help with admission decisions as well as placement decisions. ACT Score 17 17 20 22 24 27 28 GPA 1.5 3.5 3.5 3.5 3.5 3.5 3.5 Table Step 2 of 5 : Calculate the estimated variance of errors, s2e . Round your answer to three decimal places.

How many F ratios are figured in a two-way analysis of variance?     1     2     3     as many as there are cells in the design

In order to use the defining formula for variance, we must calculate  (x − x)2  for each data value in the data set  14, 18, 22, 26, 33.  Use the values in the data set and the mean  x = 22.6  to fill out the following table. x 14 18 22 26 33 x 22.6 22.6 22.6 22.6 22.6 x − x 14 − 22.6 = −8.6 18 − 22.6 = __________ 22 − 22.6 = −0.6 26 − 22.6 = _________ 33 − 22.6 = 10.4 (x − x)2 73.96 __________ 0.36 ________ 108.16

In testing for the differences between the means of two independent populations where the variances in each population are unknown but assumed equal, the degrees of freedom are Seleccione una: OA. n- 1. O B. m + n2 - 1. OC. n- 2. OD. m + n2 - 2.