Homework Solutions

ENGL 062 Week 8 Assignment | Devry UniversityWeek 8: Writing SubmissionWelcome tothe end of your journeyinENGL062. Before you transition into thenext courses in your plan of study, it is instructive to pause and take a look back and a look forward. Simply put,for this assignment you will reflect on what you did these past 8 weeks and what you need to do to be successful inyour courses to follow.Postscript Requirements·This writing submission is n...

ENGL 062 Week 7 Assignment |Devry UniversityWeek 7: Writing SubmissionEssay 2: Final DraftThis week, you will build on and revise the draft you submitted in Week 6. The purpose will be the same, as will the requirements; however, you will be expected to use feedback you receivefrom your professor to correct errorsand strengthen the content and clarity of your original piece of writing. Thatmay mean you will add to what you have written, but it ma...

BIS 155 Week 3 Discussion |Devry UniversityThis is a graded discussion:30 points possibleWeek 3: Data Analysis ToolsAccording to managmenthelp.org: "Business data analysisincludes the activities to help managers make strategic decisions, achieve major goals and solve complex problems, by collecting, analyzing and reporting the most useful information relevant to managers' needs".https://managementhelp.org/businessresearch/business-analysis(...

MATH 221 Week 8 Discussion |Devry UniversityWeek 8: Reflective Learning & TeachingHi, class! First, I would like tothank youfor all your hard work and postings in the threads. I know that I have a tendency to be a bit of a tougher grader than you may be accustomed too, and that I can often be "nitpicky" in my comments, BUT, it is all done with the mindset that I feel it is my job as an educator to not only teach you math concepts, but ...

MATH 221 Week 7 Quiz 2 | Devry UniversityWeek 7: Quiz Question 1 (CO 6) The coefficient of determination is represented by what notation? · r2 · r · ρ · β Question 2 (CO 6) Two variables have a positive linear correlation. Does the independent variable increase or decrease as the dependent variable increases? · Independent variable increases · Independent variable would remain the same · Canno...

MATH 221 Week 7 Quiz 1 | Devry UniversityQuestion 1 Two variables have a positive linear correlation. Does the dependent variable increase or decrease as the independent variable increases? 7DA. Linear, non-linear, positive and negative correlations (Links to an external site.) (PDF) · Dependent variable decreases · Dependent variable would remain the same · Dependent variable increases · Cannot determine from informa...

MATH 221 Week 7 Discussion |Devry University1. Describe the difference between a simple and a multiple regression. Then include an example of each from your own experiences. 2. Determine the regression equation using values you create for x and y for at least 10 pairs of data. Show the regression equation, correlation coefficient, and coefficient of determination. Then switch the x and y values for each data point. Based on that, again show ...

MATH 221 Week 6 Quiz 2 | Devry UniversityWeek 6: Homework Question 1 A consumer analyst reports that the mean life of a certain type of alkaline battery is no more than 36 months. Write the null and alternative hypotheses and note which is the claim. 6DA. Theory and basics of writing hypotheses (Links to an external site.) (DOCX) · Ho: μ = 36, Ha: μ > 36 (claim) · Ho: μ = 36 (claim), Ha: μ > 36 · Ho: μ > 36, H...

MATH 221 Week 6 Quiz 1 | Devry UniversityWeek 6: Quiz Question 1 (CO 5) A company claims that its heaters last at most 5 years. Write the null and alternative hypotheses and note which is the claim. · Ho: μ = 5 (claim), Ha: μ ≥ 5 · Ho: μ = 5 (claim), Ha: μ > 5 · Ho: μ = 5, Ha: μ > 5 (claim) · Ho: μ > 5 (claim), Ha: μ ≤ 5 Question 2 (CO 5) An executive claims that her employees spend no more than 2.5...

MATH 221 Week 6 Discussion |Devry UniversityA random sample of 100 medical school applicants at a university has a mean total score of 502 on the MCAT. According to a report, the mean total score for the school’s applicants is more than 499. Assume the population standard deviation is 10.6. Answer the following questions:What would the null and alternate hypotheses be? Which one would be the claim?What kind of test is this, left tailed, right...

MATH 221 Week 5 Quiz 2 | Devry UniversityQuestion 1(CO 4) From a random sample of 55 businesses, it is found that the mean time that employees spend on personal issues each week is 5.8 hours with a standard deviation of 0.35 hours. What is the 95% confidence interval for the amount of time spent on personal issues? · (5.71, 5.89) · (5.73, 5.87) · (5.74, 5.90) · (5.72, 5.88)Question 2(CO 4) If a confidence interval is given from 8.52 to...

MATH 221 Week 5 Quiz 1 | Devry University Question 1 From a random sample of 58 businesses, it is found that the mean time the owner spends on administrative issues each week is 21.69 with a population standard deviation of 3.54. What is the 95% confidence interval for the amount of time spent on administrative issues? 5VA. Confidence intervals with population standard deviation (Links to an external site.) (1:42) 5DA. Concept an...

MATH 221 Week 5 Discussion |Devry University1. Look in the newspapers, magazines, or other news sources for results of a survey or poll that show the confidence interval, usually as a +/- amount. Describe the survey or poll and then describe the interval shown. How does knowing the interval, rather than just the main result impact your view of the results?2. Calculate the 90% and 95% confidence intervals of the following data set assuming t...

MATH 221 Week 4 Quiz 2 | Devry University Question 1 (CO 3) The speed of cars on a stretch of road is normally distributed with an average 48 miles per hour with a standard deviation of 5.9 miles per hour. What is the probability that a randomly selected car is violating the speed limit of 50 miles per hour? · 0.21 · 0.48 · 0.63 · 0.37 Question 2 (CO 3) A survey indicates that shoppers spend an average of 2...

MATH 221 Week 4 Quiz 1 | Devry UniversityWeek 4: Homework Question 1 The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.54 minutes and a standard deviation of 1.91. Find the probability that a randomly selected individual will take less than 5 minutes to select a shoe purchase. Is this outcome unusual? Homework Help: 4VA. Calculating normal probabilities (Links to an exter...

MATH 221 Week 4 Discussion |Devry University1.Using these 20 data points from a normal distribution, find their μ and σ. Then find P(x<20). Compare that probability with the percent of the 20 data points that are below 20.22.1 30.9 18.6 34.7 15.3 37.1 40.8 33.9 40.8 18.1 15.1 32.6 30.3 28.3 28.3 23.1 28.4 20.7 25.1 22.12.Using these 20 data points from a normal distribution, find their μ and σ. Then find P(20<x<35). Compare th...

MATH 221 Week 3 Quiz 2 | Devry University Question 1 (CO 3) Consider the following table: Age Group Frequency 18-29 983 30-39 784 40-49 686 50-59 632 60-69 541 70 and over 527 If you created the probability distribution for these data, what would be the probability of 40-49? · 0.189 · 0.425 · 0.165 · 0.237 Question 2 (CO 3) Consider the following table of hours worked by part-time empl...

MATH 221 Week 3 Quiz | Devry UniversityWeek 3: Homework Question 1 Let x represent the number of pets in pet stores. This would be considered what type of variable: 3DA. Discrete versus continuous variables (Links to an external site.) (DOCX) · Continuous · Discrete · Lagging · Nonsensical Question 2 Let x represent sheets of paper in a package. This would be considered what type of variable: 3DA. D...

MATH 221 Week 3 Discussion |Devry University1. Show the calculation to find the μ and σ of a binomial variable whose probability of success if 0.3 with a total number of attempts of 20.2. Show the calculation to find the μ and σ of a binomial variable whose probability of success if 0.7 with a total number of attempts of 40.3. Show the calculation to find the μ and σ of a binomial variable with a total number of attempts of 30 with first wit...

MATH 221 Week 2 Quiz 2 | Devry UniversityWeek 2: Quiz Question 1 (CO 2) A random number generator is used to select a number from 1 to 100. What is the probability of selecting an odd number? · 0.077 · 0.050 · 0.500 · 0.250 Question 2 (CO 2) What is the sample space to responses to a question whose answers are Up, Down, Left, or Right along with a question on preference between Blue and Red? · (Up, Dow...