1. Variable z representing the number of male teachers per Elementary school. 2 3 4 P(z) 40% 32% 11% 9% 8%

Q: There were 5,317 previously owned homes sold in a western city in the year 2000. The distribution of...

A: Given,sample size(n)=100mean(μ)=$206,274standard deviation(σ)=$37,881

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Q: What is the probability that Namjoon will get a black sock and a purple sock?

A: here use basic of probability  and combination   here in all problem two individual socks are select...

Q: Example 6-3. In four tosses of a coin, let X be the number of heads. Tabulate the 16 possible outcom...

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Q: For the following scenarios provide the following: • the null and alternative hypotheses • explain w...

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per th...

Q: For each of the following situations, Specify the standard deviation, s.d. of the sampling distribut...

A: We have, SD = p1*(1-p1)n1+p2*(1-p2)n2  

Q: You just finished statistics class and are eager to collect and analyze your own data!  You run out ...

A: ANOVA is helpful for testing three or more variables. We have collected data about one categorical i...

Q: [For questions 8, 9, and 10] - The old Nokia 3310 battery lasts 31 hours on standby. Nokia produces ...

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Q: A middle school was interested in surveying their students to find out opinions about the schools me...

A: To draw a conclusion for the school media center through some survey, it is to be considered that th...

Q: The scores of students on the SAT college entrance examinations at a certain high school had a norma...

A: Here, mean is 559.2 and standard deviation is 28.8.

Q: In each part, give the value of the standardized statistic (z-score) for the sample proportion. (Rou...

A: We have,  Z = p^ - pp(1-p)n  

Q: A certain identification number is a sequence of five digits. (a) How many identification numbers ar...

A: Given that  A certain identification number is a sequence of five digits  Each digit place can be fi...

Q: Can you help me with d and e

A: Given: 29 Ages for trees 18,21,22,25,26,27,29,30,31,33,36,37,41,42,47,52,55,57,58,62,64,67,69,71,72,...

Q: Use the following information to answer question 6. Imogane was shown the following sets: •C (produc...

A: C ={produce}  So the vegetables and fruits comes under C.     

Q: A golf ball is selected at random from a golf bag. If the golf bag contains 6 red balls, 6 green bal...

A: Given,no.of red balls=6no.of green balls=6no.of brown balls=6Total no.of balls=18

Q: P(x = x) Value x of X 0.11 3 4. 0.10 6. 0.23

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Q: A college lecturer randomly selected thirty-five students in his class to complete an assigned task ...

A: The confidence interval for mean is       Confidence interval = x̄ ± M.E  x̄ is sample mean M.E is m...

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A: We see the sticks vertically then for vertical sticks yellow, blue and white colour are used in ever...

Q: Problem 1.28 n married couples have to cross from the left to the right bank of a river via a narrow...

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Q: What does the level of significance r

A: Level of significance: The type I error occurs if “rejecting the null hypothesis if the null hypothe...

Q: A variable is normally distributed with mean 6 and standard deviation 2.  a. Find the percentage of ...

A: Let X be the random variable from normal distribution with mean (μ) = 6 and standard deviation (σ) =...

Q: ) What is the probability that a randomly selected student spends less than $481 on textbooks this s...

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Q: You volunteered to be part of the medical mission in your barangay and were in charge to get the wei...

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Q: In a shipment of  62 vials, only 14 do not have hairline cracks. If you randomly select 3 vials from...

A: The number of vials is 62. The number of vials selected randomly is 3.

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Q: what are the three cases of the central limit theorem? What are the limitations of the t-test? What ...

A: Given that  We have to describe:  Central limit theorem  three cases  Limitation of t test  Inherent...

Q: Consider the bivariate distribution for the random variables x and y. The expected value of a linear...

A: We want to tell you which one is the correct choice.   

Q: At a factory, batteries are produced with a standard deviation of 3.2 months. In a sample of 81 batt...

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Q: Q3. In a binomial distribution of k Successes from n trials: Thenumber of different sequences is giv...

A: (I). In binomial distribution, if there are n number of trials and k number of successes then the di...

Q: Acredit score is used by credit agencies (such as mortgage companies and banks) to assess the credit...

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Q: xample 2: Prove that for a random sample of size n, X1,X2,.... ,X,n taken from an infinite populatio...

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Q: A randomly selected sample of n = 65 individuals over 65 years old takes a test of memorization skil...

A: Given: Sample size, n=65 sample mean, x¯=53standard deviation, s=7.3

Q: For nos. 14-15, refer to the situation below. You plan to open a store and found out the data for a ...

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Q: We decide that we can certainly increase our chances of winning if we bet on a color instead of a nu...

A: Given Information: The Roulette wheel has 37 slots among which 18 are red, 18 are black and 2 are gr...

Q: 1. Reports show that four out of five teenagers asked for a cell phone for Christmas this year. Use ...

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Q: A college lecturer randomly selected thirty-five students in his class to complete an assigned task ...

A: Solution-: We find, (a) Using the same value of x¯, find the new confidence interval in this case. (...

Q: The demand for a product varies from month to month. Based on the past year's data, the following pr...

A: Expected value= Σx*p(x) =(0*0.10+1000*0.15+2000*0.30+3000*0.30+4000*0.15) =2250 units.   

Q: The current production goals for the monthly production level of the cases are a mean of at least 1,...

A: For Tampa, Florida location: H0: The population mean is at least 1,000 units per month. H1: The popu...

Q: - A sample of 2 cards are drawn at random from a population of 6 cards numbered 1 to 6. Find the pro...

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Q: recent study focused on the amount of money... A recent study focused on the amount of money single...

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Q: Which one is discrete?

A: Descrete random variable which takes only countable value   

Q: A box has 12 candies in it: 3 are taffy, 4 are butterscotch, and 5 are peppermint. (Each candy falls...

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Q: Find the margin of error for the given values of c, o, and n. c= 0.95, o = 2.1, n 49 Click the icon ...

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Q: The data below are the monthly average high temperatures for November, December, January, and Februa...

A: Given information- We have given the data below are the monthly average high temperatures for Novemb...

Q: ROBLEM: Parker et. al in 2004 stated that a combination of selenium and folic acid is just as effect...

A: In hypothesis testing, there are always two hypotheses, null and alternative. These two hypotheses m...

Q: 6 11 15 18 20 Y 5 13 20 30 (a) Develop an estimated regression equation for these data. (Round your ...

A: For the given data set Find Residuals Do the assumptions about the error terms seem to be satisfied?

Q: There are 25 cars in a lot in California . The breakdown is by models listed : Nissan-4 Toyota-6 Mer...

A: If m items is favourable to the event A and n of them are unfavourable to the event A. Then odds in ...

Q: The prime Minister of a small Caribbean Island stated that 95% of the population was vaccinated from...

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Q: b) 16 4 y= -0.0519x +1.0777x - 7.4569x + 20.247x- 12.333 12 R = 0.6113 10 10 2. time Calculate point...

A: Given equation y = -0.0519x4 + 1.0777x3 - 7.4569x2 + 20.247x - 12.333  

Q: 3 4 Value x of X 1 5 P(X=x) 0.19 0.27 0.16 0.15 0.13 0.10 For parts (a) and (b) below, find the prob...

A: Given : value x of X 1 2 3 4 5 6 p( X = x)  0.19 0.27 0.16 0.15 0.13 0.10