Questions
What is the hematocrit? What does it tell you about the health of your patient? Differentiate...

What is the hematocrit? What does it tell you about the health of your patient? Differentiate between microcystic anemia and macrocystic anemia. What are the dietary causes of each?

In: Anatomy and Physiology

You have just sat through an informative lecture in your managerial accounting class about the net...

You have just sat through an informative lecture in your managerial accounting class about the net present value (NPV). However, one of your classmates leaned over to tell you that he is still unclear about this theory and would like for you to provide a summary of what this concept is all about and why it is so important. Explain to your classmate the key arguments for using NPV over other capital investment approaches and why it is the preferred method for making decisions about long-term investment opportunities.

In: Accounting

use your Sociological Imagination to answer, What would be your consequences for RPG and/or overpopulation in...

use your Sociological Imagination to answer, What would be your consequences for RPG and/or overpopulation in a group?

In: Economics

Further to the legalization of Cannabis in Canada, the Ontario Ministry of Transportation (OMT) is preparing...

Further to the legalization of Cannabis in Canada, the Ontario Ministry of Transportation (OMT) is preparing an advertising campaign to discourage impaired driving due to the use of cannabis products. The campaign will target the most dangerous combinations of THC levels and time since last intake on driving competencies. As a recent Telfer graduate with a passion for statistics, you’ve been hired by the OMT to manage this project with the assistance of a research agency. You recruit 60 individuals and assign them randomly to 4 different treatment groups of interest. Subjects must consume a certain quantity of cannabis and then go to a virtual simulator room after a certain period of time to test their driving abilities on a scale totaling 30 points. Score data for the different treatment groups can be found in the data below at the end of the questions

a) This study consists of what kind of experiment? Describe its main components and explain how it differs from an observational study.

b)Make a side-by-side boxplot of the data and explain if the similar variance and the nearly normal conditions for conducting an ANOVA seem to be satisfied.

c) In addition to a side-by-side boxplot, what other graphs can you use to check if the assumptions/conditions for using an ANOVA are satisfied? (Note: you don’t need to produce these graphs; just explain how you would produce them.)

d)Calculate the sample variance for each treatment group and then use it to calculate the pooled variance manually. Check to see if your pooled variance agrees with the MSE displayed on the partial ANOVA table in part e) below.

e) Fill in manually the correct values for the missing values in the ANOVA table below. Show your computations (maximum of 2 decimal places).

ANOVA

source of variation

   SS

   df

   MS

F

p-value

Between Groups

X

3

X

X

X

Within Groups

X

X

10.47

Total

786.18

59

f) Using the one-way ANOVA in e) above, test if there is a significant difference in the true mean score between the 4 treatment groups using the critical value approach and a 5% significance level. Make sure you follow all the steps for hypothesis testing indicated in the Instructions section, show your computations, and state the business significance of your conclusion.

g) Use the Bonferroni multiple comparison method to determine which population means differ at α = 0.05. Show your computations.

h) Perform a Kruskal-Wallis non-parametric test to determine whether there is a difference among the four-intake group (treatment group) scores. Use a 5% significance level and the critical value approach. You can use Excel or Minitab for your calculations but remember to show all the steps of your hypothesis test. Is your conclusion consistent with your results in f) above?

Score on Driving Test after Intake (Max.30)
Intake/Treatment Groups
Light Dose-2 hours Wait Light Dose-4 hours Wait Heavy Dose- 2 hours Wait Heavy Dose- 4 hours Wait
28 27 27 24
30 27 25 24
26 27 23 24
23 25 19 23
23 29 21 21
20 24 23 19
26 30 23 21
25 28 19 25
24 29 23 23
19 20 18 14
22 21 15 17
25 22 21 20
24 24 19 20
22 23 17 24
20 22 15 25

In: Statistics and Probability

Analysis of daily output by a factory employee shows that, on average, the number of units...

Analysis of daily output by a factory employee shows that, on average, the number of units per hour produced after t hours on the job can be modeled by y = 70t + 0.5t 2 − t 3 where 0 ≤ t ≤ 8.

(a) Thinking about the context of this problem, explain why t-values in this model might be restricted to values between t = 0 and t = 8.

(b) Find all the critical numbers for this function. Hint: You may want to use the quadratic formula or a quadratic program on your calculator as part of this calculation.

(c) Which critical number(s) that you found in part (b) make sense in this problem? Explain your reasoning in the context of this problem.

(d) For the critical number(s) you stated in part (c), explain, in the context of this problem, what this critical number tells you.

In: Math

1. Another couple is only willing to have 5 children, but they also want to have...

1. Another couple is only willing to have 5 children, but they also want to have a boy and a girl, and they too will stop as soon as they have one of each. What is the expted number of children they will have?

2. Out of a bag with 10 red marbles, 7 blue marbles and 16 orange marbles, what is the expected number of times a person will randomly draw out either a red or blue marble on 10 draws?

3. A card deck has 13 hearts in it and a total of 52 cards. On 3 draws without replacement, what is the expected number of times an Ace will be drawn?

4. Create your own theoretical expected value practice problem and work out the solution

In: Advanced Math

Let’s assume you have a bag of balls (5 red and 5 black). You roll a...

  1. Let’s assume you have a bag of balls (5 red and 5 black). You roll a six-sided dice and then select a ball from the bag.
    1. What is the probability you roll a five on the die and then select a red ball?
  2. You are playing blackjack with no other players (i.e. cards are dealt immediately with no one else receiving cards). What is the probability you get a K, Q, J, or 10 on the first card followed by an ace on the second card? (No replacement)
  3. The Powerball Lottery requires you to select 5 numbers between 1 and 69 and 1 number between 1 and 26. What is the probability of selecting ALL numbers correct? (Please show your work).

In: Math

Three-circle, red-on-white is one distinctive pattern painted on ceramic vessels of the Anasazi period found at...

Three-circle, red-on-white is one distinctive pattern painted on ceramic vessels of the Anasazi period found at the Wind Mountain archaeological site. At one excavation, a sample of 178 potsherds indicated that 70 were of the three-circle, red-on-white pattern. How many ceramic potsherds must be found and identified if we are to be 95% confident that the sample proportion of such potsherds is within 5.7% of the population proportion of three-circle, red-on-white patterns found at this excavation site? (Round your answer up to the nearest whole number.)

In: Statistics and Probability

What you know about writing for different audiences? How does your audience affect your writing? What...

What you know about writing for different audiences? How does your audience affect your writing? What should you consider when putting your text together? Write a 300 words essay.

In: Operations Management

LinkedIn Profile Assignment What are your major fears/anxieties about your LI profile? What are you most...

LinkedIn Profile Assignment

What are your major fears/anxieties about your LI profile?

What are you most excited about as you think about improving your LI profile?

In: Psychology