Question: A biologist takes 300 water samples from a lake. He uses an indicator solution to find that 225 of the samples are in the pH

A biologist takes 300 water samples from a lake. He uses an indicator solution to find that 225 of the samples are in the pH range between 5.5 and 6.5. The mean pH is calculated to be 6.0. Estimate the standard deviation of the samples. Then sketch a graph of the pH distribution of the lake.

Step by Step Solution

★★★★★

3.24 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

s 043 First assume that the 300 samples are normally distributed 225 out of 300 samples or 75 have ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

940-L-A-L-S (4365).docx

120 KBs Word File

Students Have Also Explored These Related Linear Algebra Questions!

A computer system has a 128 byte cache. It uses four-way set-associative mapping with 8 bytes in each block. The physical address size is 32 bits, and the smallest addressable unit is 1 byte. a) Draw...

A marine biologist was hired by the EPA to determine whether the hot-water runoff from a particular power plant located near a large gulf is having an adverse effect on the marine life in the area....

Water samples are taken from water used for cooling as it is being discharged from a power plant into a river. It has been determined that as long as the mean temperature of the discharged water is...

Group: Amira- Meera -Noura 1- Introduction 2- Literature a. Definition of operation management b. Definition of operation strategy and why it is important c. Components of operations strategy 3- Case...

Describing Data Once we have collected data from surveys or experiments, we need to summarize and present the data in a way that will be meaningful to the reader. We will begin with graphical...

Find attached Ingredients: Water, MCC, Salt, Nicotine, pH regulator, sweeteners and flavours I am wondering why the decision to go with LYFT. I understand migrating to LYFT would be easier from sells...

Please see attachment. All three question need to be answered in narrative format. If you have questions, just let me know. Normal requirement for references are 2 outside our course text....

PLEASE COMPLETE NO LATER THAN 10/07 @8:00AM Each question(1,2,& 3) must be a minimum of 200 words. Please make answers detailed and knowledgeable based off the attached reading. ARE YOU ABLE TO...

Review Questions 1. Explain how a polymer and its monomers are similar 7. Your friend is going to try to follow a "no-fat" diet. to a freight train and its cars. 2. Identify each of the following...

ID Salary 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 65.1 27 36.1 61.4 46.6 73.3 39.7 23.2 74.6 22.8 23.4 62 40.7 23 24 51.1...

JP acquired a tract of land and paid for it in full by issuing (A) $400,000 of its 9 percent bonds payable after a year and (B) 50,000 of its common shares. The shares were sold at $17.82 per share....

. In 2013, a federal judge ruled that Apple colluded with five major U.S. publishers to artificially drive up the prices of e-books (which could be read on Apple's iPad). Apple collects a 30%...

The cost of materials a company purchases to use in making products are The cost of materials a company purchases to use in making products are raw materials. O finished goods. O cost of goods sold

Pleasant View Cinic has three service departments-Food Services, Administrative Services, and X-Ray Services. The costs of these departments are allocated by the step-down method, using the...

Consider the data below from the Walsh Widget Company of Cape Cod, Mass. on widget production from 2012-2018, for their third shift of workers. Since Walsh is a publicly traded company, the data was...

In a reheat cycle, steam at 500 expands in a h.p. turbine till it is saturated vapour. It is reheated at constant pressure to 400 and then expands in a l.p. turbine to 40. If the maximum moisture...

Les & Slopes #1 Your turn 1) Drag both of the red points to create a line parallel to the blue line. 2) Enter the slope of your red line below. Submit 9/

In a reheat cycle, the initial steam pressure and the maximum temperature are 150 bar and550 respectively. If the condenser pressure is 0.1 bar and the moisture at the condenser inlet is5%, and...

Energy efficiency: A sample of 10 households was monitored for one year. The household income (in $1000s) and the amount of energy consumed (in 1010 joules) were determined. The results follow. a....

A matrix S is the square root of another T if S2 = T. Show that any nonsingular matrix has a square root.

Each matrix is in Jordan form. State its characteristic polynomial and its minimal polynomial. (a) (b) (c) (d) (e) (f) (g) (h) 1 (e 2 00 1/ 020 210 003 031 310 0031 0300 3100 400 0 0 04 0 001_4/ 003...

Find the Jordan form and a Jordan basis for each matrix (a) (b) (c) (d) (e) (f) (g) -10 4 25 10 7 9 034 425 103 1 -2 1 9 7-4 444 2 2-1 2 8 2152 1411

This question is about I/O redirection and pipes on the command-line. Explain what each of the following possible command-lines means. In each problem, you need to associate an appropriate meaning to...

8. Cash flow patterns and the modified rate of return calculation Blue Elk Manufacturing is analyzing a project with the following cash flows: This project has cash flows. Blue Elk Manufacturing's...

PRINTER VERSION BACK NEXT Brief Exercise 26-8 Viera Corporation is considering investing in a new facility. The estimated cost of the facility is $1,762,478. It will be used for 12 years, then sold...