problem solving on business statistic

Anonymous
timer Asked: Jun 6th, 2018
account_balance_wallet $30

Question description

GENERAL INSTRUCTIONS:

  1. Problem Solving. Please read and answer them carefully. Use additional sheets as needed for your answers.
  2. You may only do a hand calculation for the answers. Scan your handwritten document to obtain a pdf (electronic) document, and upload this document following the filename format indicated herein.
  3. Save your documents following the filename format: Ch.4-5Problems_ your last name.pdf.
  4. Finally, upload your files (word, pdf, excel) in blackboard no later than 11:59pm

see the attached file plz

The answers should, Must be HAND WRITEN

QMB 210: Business Statistics Assignment No. 2 University of Tampa College of Business GENERAL INSTRUCTIONS: 1. Problem Solving. Please read and answer them carefully. Use additional sheets as needed for your answers. 2. You may only do a hand calculation for the answers. Scan your handwritten document to obtain a pdf (electronic) document, and upload this document following the filename format indicated herein. 3. Save your documents following the filename format: Ch.4-5Problems_ your last name.pdf. 4. Finally, upload your files (word, pdf, excel) in blackboard no later than 11:59pm of June 11, 2018 (Monday). Name: Major: 1 Solve each problem. Show relevant solution steps. No solution will earn 0 credit. 121) The following contingency table shows the number of adults with credit scores 725 or above and below 725 as well as their marital status. Credit Score Below 725 (A) 725 or above (B) Single (C) 39 15 Married (D) 33 63 Identify the conditional probabilities for this table. 122) The following contingency table shows the number of adults with credit scores 725 or above and below 725 as well as their marital status. Credit Score Below 725 (A) 725 or above (B) Single (C) 39 15 Married (D) 33 63 Construct a decision tree for this table. 123) The following contingency table shows the number of adults with credit scores above and below 725 as well as their marital status. Credit Score Below 725 (A) 725 or above (B) Single (C) 39 15 Married (D) 33 63 Determine whether Events A and C are independent or dependent. What conclusions can be made? 127) A college student population of freshman and seniors was surveyed to determine if they prefer traditional textbooks or digital textbooks. According to this sample, 60% of freshman students preferred digital textbooks. Forty percent of the sample consisted of freshman students. Also, 20% of senior students preferred digital textbooks. Given that a student prefers digital textbooks, use Bayes' Theorem to determine the probability that the student is a freshman. 133) A business class consists of seven groups of students who each make a presentation during the semester. The instructor grades the presentations and rank orders the performance of these groups from best to worst. Determine the number of ways these seven groups can finish in this rank order. 136) A manager of a department that consists of 18 employees needs to select 4 employees to participate in a training program. Determine the number of unique ways in which this group of employees can be selected for the training program. 138) Determine the probability of being dealt four-of-a-kind in five-card poker. 2 Ch. 5 – Discrete Probability Distributions 111) Kobe Bryant, a professional basketball player in the NBA, has made 84% of his free throws during his career with the Los Angeles Lakers. Calculate the probability that Bryant will make four or five of his next six free throws. Ch. 6 – Continuous Probability Distributions 111) The average cost to rent a full-size car is $60.25 per day. Assume that this rental cost follows the normal probability distribution and that the standard deviation for this population is $4.60. What is the probability that a randomly selected full-size rental car cost between $50 and $65 per day? 125) According to Nielsen, 39% of all smartphone users are between the ages of 18 and 34. A random sample of 100 smartphone users was selected. Using the normal approximation to the binomial distribution, what is the probability that more than 34 people from this sample were between the ages of 18 and 34? 3

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tessyjohnston
School: Rice University

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Anonymous
Outstanding Job!!!!

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