Mathematics, 26.02.2020 01:21 Sebs1

Computing the pooled standard deviation. An experiment was run to compare three timed-release fertilizers in terms of plant growth. The sample sizes were 25, 18, and 28, and the corresponding estimated (a) Is it reasonable to use the assumption of equal standard deviations n we analyze these d (b) Give the values of the variances for the three groups. (c) Find the pooled variance. (d) What is the value of the pooled standard deviation?

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 15:30, Reese7977

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Answers: 3

continue

Mathematics, 21.06.2019 19:00, robert7248

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Answers: 2

continue

Mathematics, 21.06.2019 22:00, leomcintyre12

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left

Answers: 2

continue

Mathematics, 21.06.2019 23:20, lyss12326

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

Answers: 1

continue

You know the right answer?

Computing the pooled standard deviation. An experiment was run to compare three timed-release fertil...