Using the probability tree shown below, find P(A|B), that is, the probability of A given B. Hint: P(B) = P(BNA) + P(BNA).

Q: 8 9 10 11 14.3 14.1 14.9 15.2 17.9 18.1 19.2 19.5 a. Use ratio estimator to estimate the average (Ỹ)…

A: Detailed explaination is given belowExplanation:a. Ratio estimator:The ratio estimator for…

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A: Given,X is a positive discrete uniform random variable with mean = 6 and variance = 4.We need to…

Q: The heights of 1500 students are normally distributed with a mean of 176.5 centimeters and a…

A: No. of students, The students' heights have a normal distribution.Mean height,  cmsStandard…

Q: A printer contains 4 ink boxes and 5 cartridges.Find the probability of random selecting a set of 2…

A: Number of ink boxes = 4Number of cartridges = 5Total number of boxes = 4 + 5 = 9

Q: Water Electricity 0.8 Water 0.6 I 0.4 Electricity 0.2 0 -0.2 Sanitation 0.4 0.6 Education 0.8 -1…

A: The heat map is given. The heat map shows the correlation between different variables.Want to…

Q: 2. A political scientist developed a test designed to measure the degree of awareness of current…

A: (a) Average Score  : yˉ​=51.56 (b) If  there are 100 classes in session during each hour, the…

Q: Do students who are members of fraternities or sororities have GPAS alfferent from the student body…

A: μ=2.59,s=0.34,x¯=2.47,n=123Decision rule: When p value< level of signicance,then reject the null…

Q: Infant colic Mother smoking Yes No Total status Yes 15 167 182 No 111 2477 2588 Total 126 2644 2770

A: The data for smoking status of mother and colic among infants is given as:Infant colicMother's…

Q: Maya recently switched her primary doctor to one specializing in caring for elderly patients. On her…

A: The objective of this question is to test whether the mean systolic blood pressure among elderly…

Q: The data set available below represents the length of life, in seconds, of 50 fruit flies subject to…

A: 7,14,19,7,10,5,21,8,7,18,20,19,10,10,7,14,19,14,5,11,8,11,13,5,9,14,16,8,14,18,11,14,10,6,28,8,10,5,…

Q: A batsman played with an average of 78 runs per match in first 28 matches. In the next 14 matches,…

A:

Q: David's gasoline station offers 4 cents off per gallon if the customer pays in cash and does not use…

A: The question is about discrete probability distribution.Given :Proportion of all customers who pay…

Q: The formula described in this section for determining sample size corresponds to a confidence level…

A: To find the sample size for the given information.

Q: In the digital age of marketing, special care must be taken to ensure that programmatic ads appear…

A: The data set isMarketing ManagersMarketing ResearchAdvertising988889778877988778Significance level =…

Q: holiday gift response of interest yes sample size 200 count for response 94 sample proportion 0.4700…

A: To address this question, we need to calculate the confidence interval for the sample proportion and…

Q: Suppose a simple random sample of size n = 64 is obtained from a population that is skewed right…

A: Given ,n = 64 82 24

Q: In a poll of 1000 randomly selected U.S. adults, 384 indicated that they considered themselves to be…

A: It is given that out of 1000 adults, 394 indicated that they considered themselves to be baseball…

Q: K In a certain state, it has been shown that only 54% of the high school graduates who are capable…

A: The objective of this question is to find the probability that, among 10 capable high school…

Q: & 6.2 Question 15, 6.1.38-T Part 1 of 4 > HW Score: 48.86%, 17.1 of 35 points O Points: 0 of 1 Save…

A: The objective of this question is to construct the 90% and 95% confidence intervals for the…

Q: How many numbers between 1999 and 4000 can be formed with the digits 0,1,2,3 and 4 if repetition of…

A:

Q: The director of the IRS has been flooded with complaints that people must wait more than 20 minutes…

A: Suppose  is the true population average wait time to see an IRS representative.The sample size is…

Q: K Find the minimum sample size n needed to estimate u for the given values of c, o, and E. μ c=0.90,…

A: The objective of this question is to find the minimum sample size required to estimate the…

Q: Which one of the following z values has an upper tail area that is more than 0.5? a) - 2 b) 0…

A: The objective of this question is to identify which of the given z-values has an upper tail area…

Q: What is the difference between the terms active independent variable and attribute independent…

A: The variable under study that can be controlled by the researcher is known as an active independent…

Q: Ghughu

A: Answer -The 95% confidence interval for two sided for the standard deviation is = 0.11 ≤  σ  ≤…

Q: +3 You are given that +980 = 125 Calculate Var[K80]. A 0.87 B 0.90 C 0.93 D 0.96 E 0.99

A: We have givenTherefore,To find:

Q: se the ALEKS calculator to solve the following problems. (a) Consider a 't distribution with 22…

A: Consider a t-distribution with 22 degrees of freedom.

Q: An experiment is conducted to compare the maximum load capacity in tons (the maximum weight that can…

A: Given , 49.545.54n = 305

Q: "In State Y, which has a complex tax structure, the sales tax varies depending on the type of goods…

A: Solution: First, let's calculate the sales tax for each item:Laptop: Sales tax = 7% of $1200 = 0.07…

Q: The weight of an energy bar is approximately normally distributed with a mean of 42.9042.90 grams…

A: Note: Since you have posted a question with multiple sub-parts, we will solve first three subparts…

Q: Draw a normal distribution for each of the following z-score locations. Then draw a vertical line…

A: If the value of Z-score is negative then say that this is left -tail and if Z-score is positive then…

Q: Please see attached im

A: The Explanation is below please checkExplanation:Step 1: Step 2:

Q: The following table indicates the unit prices (in Rands) and quantities of three goods purchased…

A: The objective of the question is to calculate the price relative for milk and eggs, the Laspeyres…

Q: What of the following is not a correct comparison among the Z-distribution and all the…

A: The Z-distribution and t-distribution are both types of probability distributions that are used in…

Q: Typed plz and asap please provide me a quality solution reed the question carefully and answer…

A: The objective of the question is to calculate the mean, standard deviation, minimum usual value, and…

Q: In a box 20% balls are white, 33% balls are blue, 27% balls are red and rest are green. If the…

A: In a box 20% of balls are white, 33% of balls are blue, 27% of balls are red and the rest are green.

Q: Let X be a continuous random variable defined by: X~N(6, 12,25). Using the z-table, find the…

A: A normal distribution is a distribution i.e., a bell-shaped curve. The total area of this…

Q: Weights of Elephants A sample of 8 adult elephants had an average weight of 11,700 pounds. The…

A: Given Information:Sample size (n) = 8Sample mean () = 11700 poundsSample standard deviation (s) =…

Q: amount and Y represents the expense amount. The variance of the total cost is 100, the standard…

A: The correlation coefficient is 0.8The variance of the total cost is 100The the standard deviation of…

Q: is the proportion of infant colic differs among mothers who smoke and mothers who do not smoke.…

A: The data is given for 2 variables (mother's smoking status and infant colic).Want to test whether…

Q: The mean SAT score in mathematics is 587. The standard deviation of these scores is 42. A special…

A: 1) H0​:μ=587587">H1​:μ>587  b)   Z test   , df = 99  ( though we do not need df in z test) c)…

Q: Suppose you calculate a 95% and 90% confidence interval for the true proportion of college students…

A: The objective of the question is to understand the relationship between the width of the confidence…

Q: The mean SAT score in mathematics is 537. The standard deviation of these scores is 31. A special…

A: The objective of this question is to test the claim that the mean SAT score of graduates from a…

Q: The records of a casualty insurance company show that, in the past, its clients have had a mean of…

A: The objective of the question is to identify the null hypothesis (H0) and the alternative hypothesis…

Q: A starter motor used in a space vehicle has a high rate of reliability and was reputed to start on…

A: 0.9926Explanation:The probability of at least one failure is the same as 1 minus the probability of…

Q: Use 0.95 to denote the value that cuts a lower tail of 0.95 from standard Normal distribution. Use…

A: The objective of the question is to compare the value that cuts a lower tail of 0.95 from a standard…

Q: A random sample of size 49 is taken from a normal population having a mean of 80 and a standard…

A: Let X= The rv that denotes the first normal populationSample size, Mean, Sd, Let Y= The rv that…

Q: Year 1990 Y= 1 X = 10 1991 Y =3 X= 15 1992 Y= 4 X= 20 Estimate the slope of the OLS regression of Y…

A: Here the dependent variable (Y) is real compensation per hour.The independent variable (X) is output…

Q: Part 3.1. Find the probability that the customer will have to wait between 15.5 and 21 minutes: 1-2.…

A: Population mean  μ=23.2Population standard deviation σ =3.1To find the probability we use the…

Q: 1. ABC inc. stock is currently selling for $30, one year from today the stock price can either…

A: The objective is to calculate the value of a European put option using the Binomial Option Pricing…