An experimenter is studying the effects of temperature, pressure, and type of catalyst on yield from a certain chemical reaction.Two different temperatures, five different pressures, and six different catalysts are under consideration.(a) If any particular experimental run involves the use of a single temperature, pressure, and catalyst, how many experimentalruns are possible?runs(b) How many experimental runs are there that involve use of the lowest temperature and two lowest pressures?runs(c) Suppose that six different experimental runs are to be made on the first day of experimentation. If the six are randomlyselected from among all the possibilities, so that any group of six has the same probability of selection, what is theprobability that a different catalyst is used on each run? (Round your answer to four decimal places.)Submit AnswerNeed Help? Read It

Number of temperatures an experimenter studies =2Number of pressures an experimenter studies =…

Answered: An experimenter is studying the effects…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Group problems: The Collision Problem: You have been hired by an insurance investigator to look into an accident involving a sailboat and a speedboat that occurred on New Year's day at 3:00 in the arternoon. Your job is to determine where (relative to the dock) the collision took place. After your investigation you ascertain the following facts about the case. The speedboat was carrying a toup of 20 people who were returning to shore after enjoying a 2-hour picnic on an island. The island is located 5.2 miles east and 12.6 miles north of the dock. The speedboat was heading from the island toward a point on the shore located 3.0 miles due west of the dock. Around the same time, the sailboat left the dock heading toward a buoy that is 5.0 miles west and 7.5 miles north of the dock. Neither boat made it to its destination since they collided in the water. You interviewed 5 witnesses and 2 lifeguards for 4 hours, in addition to studying nautical maps provided by the Navy. You plan to bill…
2019 AP® STATISTICS FREE-RESPONSE QUESTIONS 2. Researchers are investigating the effectivencss of using a fungus to control the spread of an insect that destroys trees. The researchers will create four different concentrations of fungus mixtures: 0 milliliters per liter (ml/L), 1.25 ml/L, 2.5 ml/L, and 3.75 ml/L. An equal number of the insects will be placed into 20 individual containers. The group of insects in each container will be sprayed with one of the four mixtures, and the researchers will record the number of insects that are still alive in each container one week after spraying. (a) Identify the treatments, experimental units, and response variable of the experiment. Treatments: Experimental units: Response variable: (b) Does the experiment have a control group? Explain your answer. (c) Describe how the treatments can be randomly assigned to the experimental units so that each treatment has the same number of units.
Problem #8
#1
#8
Choose the correct answer
Defective electronics: A team of designers was given the task of reducing the defect rate in the manufacture of a certain printed circuit board. The team decided to reconfigure the cooling system. A total of 972 boards were produced the week before the reconfiguration was implemented, and 257 of these were defective. A total of 844 boards were produced the week after reconfiguration, and 183 of these were defective. Part: 0 / 2 Part 1 of 2 (a) Construct a 99.9% confidence interval for the decrease in the defective rate after the reconfiguration. Use tables to find the critical value and round the answer to at least three decimal places. A 99.9% confidence interval for the decrease in the defective rate after the reconfiguration is >?d _ 'd> [ MacBook Ai DII DD 80 888 F11 F9 F10 F7 F8 F5 F6 F3 F4
QUESTION 5 An experiment was conducted to evaluate the effectiveness of a treatment for tapeworm in the stomachs of sheep. A random sample of 60 worm-infected lambs of approximately the same age and health was randomly divided into two groups. Thirty of the lambs were injected with the drug and the remaining thirty were left untreated. After a 6-month period, the lambs were slaughtered and the number of worms in the lamb of the stomach were counted. The drug-treated sheep had a mean of 24.67 worms with a standard deviation of 13.78. The untreated sheep had a mean of 37.82 worms with a standard deviation of 18.21. Assuming the true variances cannot be assumed equivalent, which of the following would be the correct way to calculate a t test for a two-tailed hypothesis test? OA. 24.67-37.82 O B. о с. t ¹0= 13.78 18.21 30 30 24.67-37.82 + (13.78) 2 30 + 24.67-37.82 + (18.21) ² 30 13.78 18.21 60 60 + 24.67-37.82 (13.78) 2 60 (18.21) 2 60
urgently please answer question 2 and 3 QUESTION 2 An experiment was conducted into car tyre wear by the department of Materials Science at Lowlands University, which it has been asked to carry out by a tyre company. The tyre company hascreated a new compound which it hopes will make tyres last much longer. Various levels of the compound were mixed in with rubber to make tyres. Apart from that, all the tyres were identical, with 16mm of tread when new. One hundred motorists chosen at random were given new tyres, and split into ten groups. After each motorist had completed 10,000 miles on the new tyres, the level of tread remaining was measured. The data recording the experiment is set out in the table below. You have been asked to use correlation analysis to see if there is a relationship between the percentage of the new compound and the wear on the tyres. Identify appropriate x and y variables, stating clearly which variable is the “x” variable and which is the “y” variable…
stüdentS (3) The population is classified by their economic status: poor, middle-class and rich. Every year, people moving up and down the economic ladder according to From: To: рoor middle-class rich 0.9 0.05 0.05 рor middle-class 0.1 0.8 0.1 rich 0.02 0.02 0.96 In year 2011, a 100-family town is made up of 30 poor, 40 middle-class and 30 rich families, a. what will be the makeup of this town in year 2012? b. what will be the makeup of this town in year 2015? c. what was the makeup of this town in year 2010?
Barley Variety Yields. In his classic 1935 treatise, The Design of Experiments, Sir Ronald Fisher (see biography that follows Chapter 16) provides data on the yields of five varieties of barley that have been grown at six different locations in the state of Minnesota during two years.
Defective electronics: A team of designers was given the task of reducing the defect rate in the manufacture of a certain printed circuit board. The team decided to reconfigure the cooling system. A total of 970 boards were produced the week before the reconfiguration was implemented, and 258 of these were defective. A total of 851 boards were produced the week after reconfiguration, and 171 of these were defective. Part: 0 / 2 Part 1 of 2 (a) Construct a 90% confidence interval for the decrease in the defective rate after the reconfiguration. Use tables to find the critical value and round the answer to at least three decimal places. A 90% confidence interval for the decrease in the defective rate after the reconfiguration is

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS