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QUESTION 3 Problem 1) of the 21,000 students a SHSU. 15.000 students have laptop computers, 10.000...
QUESTIONS Problem 1) Of the 21,000 students at SHSU. 15,000 students have laptop computers, 10,000 students...
QUESTIONS Problem 1) Of the 21,000 students at SHSU. 15,000 students have laptop computers, 10,000 students have desktop computers, and 8,000 students have both Supposed that a students randomly selected (5) Suppose that you learn that the selected individual has a laptop computer. Now, what is the probability that this student has both laptop and desktop computers?
1. A small computer manufacturing company pro. duces both laptop and desktop computers. The production of...
1. A small computer manufacturing company pro. duces both laptop and desktop computers. The production of a laptop computer requires 4 hours of assembly and 1 hour of testing time. The pro- duction of a desktop computer requires 4 hours of assembly and 1.5 hours of testing time. The profit margin for a laptop computer is $400, and the profit margin for a desktop computer is $500. There are a total of 5,000 hours of assembly time and 1,000 hours...
Question 17 The manager of a computer retails store is concerned that his suppliers have been...
Question 17 The manager of a computer retails store is concerned that his suppliers have been giving him laptop computers with lower than average quality. His research shows that replacement times for the model laptop of concern are normally distributed with a mean of 4.4 years and a standard deviation of 0.5 years. He then randomly selects records on 25 laptops sold in the past and finds that the mean replacement time is 4.2 years. Assuming that the laptop replacement...
Question 1: An undergraduate business student has purchased a laptop computer for use during exams. This...
Question 1: An undergraduate business student has purchased a laptop computer for use during exams. This laptop is perfectly reliable except for two parts: its microchip, which has a MTBF=20 hours; and its battery, which has a MTBF=10 hours. Also, on average the battery will wear out in five hours, with a standard deviation of 30 minutes. Assuming that a new battery has just been installed, what is the probability that the laptop will perform reliably during a one-hour exam?...
Question 2: A company generally purchases large lots of a certain type of laptop computers. A...
Question 2: A company generally purchases large lots of a certain type of laptop computers. A method is used that rejects a lot if more than 2 defective laptops are found in a lot. Past experience shows that 10% laptops are defective. What is the probability of rejecting a lot of 20 units? What is the probability that in a batch of 20 laptops between 3 and 5 (inclusive) laptops are defective? On the average how many defective laptops are...
Problem #3: Let A and B be two events on the sample space S. Then show...
Problem #3: Let A and B be two events on the sample space S. Then show that a. P(B) P(AOB)+P(AnB) b. If Bc A, then show that P(A)2 P(B) Show that P(A| B)=1-P(A|B) C. P(A) d. If A and B are mutually exclusive events then show that P(A| AUB) = PA)+P(B) Problem 4: If A and B are independent events then show that A and B are independent. If A and B are independent then show that A and B...
In Python please. Problem 3 (Tracking Stock Levels) For this third part, you will add functionality to track stock level...
In Python please. Problem 3 (Tracking Stock Levels) For this third part, you will add functionality to track stock levels within the store and prevent customers from placing orders that cannot be fulfilled. Again, copy your solution from the previous problem into a new file called a2p3.py. Do not overwrite your previous solution, as the TAs will want to see them both. Modify your code by adding a new variable to keep track of the stock level of each product...
1. The mean lifetime of laptop computers produced by one company is 4.6 years with a...
1. The mean lifetime of laptop computers produced by one company is 4.6 years with a standard deviation of 1.1 years. Consider random samples of 55 laptop computers repeatedly taken for 2 weeks. What is the standard deviation of the sampling distribution of the sample means? (If rounding is needed, round to four decimal places). 2 . Suppose that for 18-to-25-year-old men, the mean number of football games watched each football season is 19.0 games with a standard deviation of...
This Question: 1 pt 15 A frequency distribution for the class level of students in an...
This Question: 1 pt 15 A frequency distribution for the class level of students in an introductory statistics course is shown. Two students are randomly selected without replacement. Complete parts (a) Class Frequency Freshman Sophomore16 through (d). Junior Senior a. Determine the probability that the first student obtained is a junior and the second a senior. The probability that the first student obtained is a junior and the second a senior is Type an integer or a decimal rounded to...
Question Not yet answered Marked out of 1 P Flag question It is known from past...
Question Not yet answered Marked out of 1 P Flag question It is known from past experience that the probability that a randomly picked student will have a Facebook account is 0.87, and the probability that a randomly picked student will have a Twitter account is 0.42. If it is known that approximately 90% of all students have either a Facebook or Twitter account, what is the probability that a randomly picked student will have both a Facebook account and...
QUESTIONS Problem 1) Of the 21,000 students at SHSU. 15,000 students have laptop computers, 10,000 students have desktop computers, and 8,000 students have both Supposed that a students randomly selected (5) Suppose that you learn that the selected individual has a laptop computer. Now, what is the probability that this student has both laptop and desktop computers?
1. A small computer manufacturing company pro. duces both laptop and desktop computers. The production of a laptop computer requires 4 hours of assembly and 1 hour of testing time. The pro- duction of a desktop computer requires 4 hours of assembly and 1.5 hours of testing time. The profit margin for a laptop computer is $400, and the profit margin for a desktop computer is $500. There are a total of 5,000 hours of assembly time and 1,000 hours...
Question 17 The manager of a computer retails store is concerned that his suppliers have been giving him laptop computers with lower than average quality. His research shows that replacement times for the model laptop of concern are normally distributed with a mean of 4.4 years and a standard deviation of 0.5 years. He then randomly selects records on 25 laptops sold in the past and finds that the mean replacement time is 4.2 years. Assuming that the laptop replacement...
Problem #3: Let A and B be two events on the sample space S. Then show that a. P(B) P(AOB)+P(AnB) b. If Bc A, then show that P(A)2 P(B) Show that P(A| B)=1-P(A|B) C. P(A) d. If A and B are mutually exclusive events then show that P(A| AUB) = PA)+P(B) Problem 4: If A and B are independent events then show that A and B are independent. If A and B are independent then show that A and B...
This Question: 1 pt 15 A frequency distribution for the class level of students in an introductory statistics course is shown. Two students are randomly selected without replacement. Complete parts (a) Class Frequency Freshman Sophomore16 through (d). Junior Senior a. Determine the probability that the first student obtained is a junior and the second a senior. The probability that the first student obtained is a junior and the second a senior is Type an integer or a decimal rounded to...
Question Not yet answered Marked out of 1 P Flag question It is known from past experience that the probability that a randomly picked student will have a Facebook account is 0.87, and the probability that a randomly picked student will have a Twitter account is 0.42. If it is known that approximately 90% of all students have either a Facebook or Twitter account, what is the probability that a randomly picked student will have both a Facebook account and...
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