Mathematics, 12.04.2021 23:10 ceburns23

A study is performed involving two methods for removing harmful bacteria in 350 lakes in Florida. The lakes were treated randomly using one of two methods. Specifically, 150 were treated using Method A and 200 were treated using Method B. A total of 250 of the 350 lakes were bacteria-free after treatment, 95 from the Method A group and 155 from the Method B group. A significance test was performed for the following hypotheses and resulted in a p-value of 0.0018:
H0: Bacteria removal rates are the same for Method A and B
Ha: Method B has a higher bacteria removal rate
Part A: Interpret the p-value in terms of the context. (3 points)
Part B: Using a significance level of ? = 0.05, what can you conclude from the context of this study? (4 points)
Part C: Based on your conclusion in part B, which type of error—Type I or Type II—could have been made? What is one potential consequence of this error? (3 points)

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 18:00

Sara can take no more than 22 pounds of luggage on a trip.her suitcase weighs 112 ounces.how many more pounds can she pack without going over the limit?

Answers: 1

Answer

Mathematics, 22.06.2019 01:00

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)

Answers: 3

Answer

Mathematics, 22.06.2019 01:30

If cos(θ)=2853 with θin q iv, what is sin(θ)?

Answers: 2

Answer

Mathematics, 22.06.2019 03:30

Find the solution set for this equation: t^2+7t=0 separate the two values with a comma.

Answers: 2

Answer

You know the right answer?

A study is performed involving two methods for removing harmful bacteria in 350 lakes in Florida. Th...