A researcher investigated the effects of green and red light on the growth rate of bean plants.  The table below summarizes the heights (in inches) of bean plants from soil to first branching stem.  

(A – 10 pts.)  Use the Pooled two-sample t-procedure to construct the 95% confidence interval for the difference in mean height for bean plants exposed to these two colors of light.  (You do not need to interpret the confidence interval.)

(B – 8 pts.)  Suppose that you wish to address the question of whether mean height differs for bean plants exposed to these two colors of light.  State the null hypothesis and the alternative hypothesis, using appropriate notation. Clearly identify what each symbol represents.  Do not attempt to conduct the test.

Choose one of your favorite brands. In your initial discussion post, explain what about the brand makes it compelling to you. How does the company use marketing to communicate the brand? Identify at least one way that the company could improve its brand communications. What should the company consider to avoid unethical marketing? How could unethical marketing affect its brand?

Discuss in detail how nanotechnology is a cutting-edge advancement within the science and engineering fields that is beginning to find applications in health care on an experimental basis. Please cite your sources and explain in detail. Thank you

Let x be a random variable that represents red blood cell count (RBC) in millions of cells per cubic millimeter of whole blood. Then x has a distribution that is approximately normal. For the population of healthy female adults, suppose the mean of the x distribution is about 4.80. Suppose that a female patient has taken six laboratory blood tests over the past several months and that the RBC count data sent to the patient's doctor are as follows.

(i) Use a calculator with sample mean and standard deviation keys to find x and s. (Round your answers to two decimal places.)

s=

(ii) Do the given data indicate that the population mean RBC count for this patient is lower than 4.80? Use ? = 0.10.

(a) What is the level of significance?

(b) State the null and alternate hypotheses.

A) H₀: ? > 4.8; H₁:  ? = 4.8

B) H₀: ? = 4.8; H₁:  ? < 4.8     

C) H₀: ? = 4.8; H₁:  ? ? 4.8

D) H₀: ? < 4.8; H₁:  ? = 4.8

(b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution.

A)The Student's t, since we assume that x has a normal distribution and ? is known.

B) The Student's t, since we assume that x has a normal distribution and ? is unknown.     

C) The standard normal, since we assume that x has a normal distribution and ? is unknown.

D) The standard normal, since we assume that x has a normal distribution and ? is known.

What is the value of the sample test statistic? (Round your answer to three decimal places.)

(c) Find the P-value. (Round your answer to four decimal places.)

Sketch the sampling distribution and show the area corresponding to the P-value.

(d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis? Are the data statistically significant at level ??

A) At the ? = 0.10 level, we reject the null hypothesis and conclude the data are statistically significant.

B) At the ? = 0.10 level, we reject the null hypothesis and conclude the data are not statistically significant. C) At the ? = 0.10 level, we fail to reject the null hypothesis and conclude the data are statistically significant.D) At the ? = 0.10 level, we fail to reject the null hypothesis and conclude the data are not statistically significant.

This probability question from my physics class is confusing me, any explanation really appreciated!

An analogy: a child with blocks and constraints on physical systems. A certain child's room is partitioned into 100 squares. His toy box in the corner is exactly one square in size and contains some number of blocks. When he plays with the toys, he tends to throw them around and evenly scatter them about the room.

a) Assume that there are now three blocks (red, green, and blue). Also assume that all three blocks can fit on one square. How many accessible states are there for this system, if they are all in the toy box, lid is closed, and the lid is locked in the closed position? (All the other constraints imposed in the story still apply.)

b) What is the total number of accessible microstates for this system, if the toy -box lid is opened?

c) If the boy plays for a long time with all the blocks (and randomly leaves them in the toy box or on one of the floor squares), what is the probability of finding the red block in the toy box, the blue box on square #15, and the green block on square #75? Explain how you determined this result.

d) Again, after a long time, what is the probability of finding the red block in the toy box independently of where the blue and green blocks are?

e) How would probability in (d) change if we asked for it after the boy had been playing for only 15 seconds? Explain why.

f) Explain what condition must be satisfied to say that a system is equally likely to be in any of its accessible microstates.

The management of a tertiary institution in Ghana has contacted you to design and implement an ERP system for handling their internal workflows. Among other things the system should focus on student records, students’ fees management, students’ assessment, human resource functions, and payroll management. Following from this preamble, answer the question that follow. a. What is an ERP system? 2 Marks b. In not more than a page, describe how you would go about building the requested system focusing on what you would do at the first three (3) phases of the SDLC. 10 Marks c. Which system architecture would you recommend for implementing the ERP system, and why? 4 Marks d. Based on your choice of system architecture in c, write down the major hardware and software components that you would need for the successful implementation of the system. 4 Marks e. State and explain any three (3) system conversion strategies that are used to introduce new systems into organizations. 6 Marks f. Which one of the conversion strategies discussed in e, would you use to introduce the ERP system to your client and why? 4 Marks g. State any six (6) use cases of the ERP system, and draw a use case diagram for the system using the identified use cases only.

Section 1.C.15 b.1 of the coding guidelines for pregnancy, childbirth and the peurperium state that Z34, encounter for supervision of normal pregnancy is to be used for routine outpatient prenatal visits. When shouldn't you utilize this code?

Give a coding example of when you shouldn't use Z34.