Task-5. How percentiles and quartiles are calculated in the grouped data sets. Write formulas with proper explanation of its parameters, and what are the 2 methods of identifying outliers in data sets using percentiles and quartiles.

Q: Use CLT to find the µx and ox? Find the z-score that corresponds t- x =$265,000 Find the cumulative…

A: Solution Here we will use normal formula to calculate the probability.

Q: A standard deck of cards contains 52 cards. One card is selected from the deck. (a) Compute the…

A: select one card from 52 card deck. there are 4 suits of card and 13 rank in each suit.    P(event) =…

Q: The director of special events for Sun City believed that the amount of money spent on fireworks…

A: Given information: The data for the amount of 4th of July and fall festival is given.

Q: In a multiple regression analysis, k = 5 and n = 23, the MSE value is 15.14, and SS total is 437.09.…

A: We have given that k = 5  n = 23  MSE = MSerror  = 15.14   Significance level (α) = 0.05 SStotal =…

Q: A family consisting of three people-P₁, P2, and P3-belongs to a medical clinic that always has a…

A: Given information, There are three people in a family such as P1,P2 and P3. They always go to…

Q: 2. A psychologist operating a group home for delinquent adolescents needs to show that it is…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: To test for any significant difference in the number of hours between breakdowns for four machines,…

A: From given data we have : Machine1 Machine2 Machine3 Machine4 6.6 8.8 10.9 9.5 7.9 7.3 10.0…

Q: Question: What measure of central tendency do you think would be best to describe the number of…

A: Introduction The mean, median and mode are the measures of central tendency.

Q: Question: You don't have to re-calculate anything. Explain why the mean and median would go up and…

A: Mean = (sum of data)/n  In data :  n = 22  Median :  First arrange data in increasing order Than…

Q: The success rate a salesman may achieve through cold calling will largely depend on the approach…

A: Given information n=100, p=0.21

Q: A data set is summarized in the frequency table below. The data set contains a total of 50 data…

A: Value Frequency 2 7 3 4 4 3 5 ◻ 6 5 7 7 8 4 9 7 0 5    The data set contains a…

Q: Question: Why is the value that you calculated for the mean different from the mode and median?…

A: The formula for the mean is as follows, x¯=∑i=1nxin The formula for the median is as follows, If the…

Q: 4. Consider two events A and B in a sample space. If P(A) = 0.55, P(B) = 0.2, and P(A^B) = 0.08,…

A: A and B are two events in the same sample space. According to the addition formula the probabilities…

Q: Given n pairs of observations on explained variable Y and explanatory variable X , econometrician…

A: (a) The problem with adopting the criterion of minimizing Σe is that it does not take into account…

Q: The mean age of a random sample of 35 people who were playing the slot machines is 48.7 years with a…

A: We have written given information with usual notation, Let xs denotes the playing the slot machine…

Q: The average sales price of a single-family house in US is $290,600. You randomly select 12…

A: Given information: n=12, μx=290600, and  σx=36000

Q: computers, respectively. To each sample point, assign a value x of the random variable X…

A: Here given,  A shipment of five computers contains two that are slightly defective. If a retailer…

Q: Question 3: Find the Mean, Median, Quartile 1, Quartile 3, Interquartile Range, Minimum, Maximum,…

A: The objective is to find the five-number summary, the standard deviation, and the Inter Quartile…

Q: A voin is tossed four times. Let x denote the number of heads. Find the mean and standard deviation…

A: If a coin is tossed 4 times, then the possible outcomes are: HHHH, HHHT, HHTT, HTTT, THHH, For the…

Q: Stay in school: In a recent school year in the state of Washington, there were 319,000 high school…

A: Data given Total =319000 Female=157000  Male=162000  Female(Drop out)=9600  Male(Drop out)=10100…

Q: Suppose that you are an elementary school teacher and you are evaluating the reading levels of your…

A: Given that: Population mean, μ=85 Population standard deviation, σ=23

Q: Calculate the mean and standard deviation for the two variables separately, based on the info…

A: From given data we have : education memory 14 112 13 117 12 98 14 114 16 110 12 89…

Q: To the right are the outcomes that are possible when a couple has three children. Assume that boys…

A: From the given information we have  Total number of couple have exactly 1 boy child is 3 and, Total…

Q: the answer for question H? or is the output the answer for question H?

A: Temperature (oC) Corrosion (mm/yr.) 26.6 1.58 26 1.45 27.4 1.13 21.7 0.96 14.9 0.99 11.3…

Q: A pharmaceutical company is developing a new drug to treat a certain medical condition. The company…

A: To test the hypothesis that the new drug is more effective than the placebo, we need to use a…

Q: We can use the random number table to simulate outcomes from a given discrete probability…

A: Given:-               Jose plays basketball and has a probability of 0.7 of making a free-throw…

Q: K The table provided below shows paired data for the heights of a certain country's presidents and…

A: The given data is as follows, President's Height Opponent's Height 182 193 182 192 188 188…

Q: Derive the Least Squares Estimator 3 of the parameter 3 in the no-intercept model Y₁ = Bα₁ + Ei,

A: Hi! Thank you for the question. As per the honor code, we are allowed to answer 1 question at a…

Q: Find out whether each of the following processes {Xt} is weakly stationary or nonstationary. For the…

A: Given the process Xt X0=0 and Xt=Xt-1+εt for t≥1 εt~WN0, σ2

Q: Suppose you have data on 100 firms’ quarterly sales during the most recent quarter (so 1 quarter of…

A: By definition, panel data is referred to as a data set in which individual objects are repeatedly…

Q: Literacy Rate The figure below gives a boxplot showing the literacy rate of the countries of the…

A: Here the given box plot is

Q: Winston, a dog, loves to play fetch.  He catches each ball mid-air independently with probability…

A: Obtain the probability that in four tosses, Winston makes exactly three mid-air catches.   The…

Q: Boxes of Honey-Nut Oatmeal are produced to contain 15.0 ounces, with a standard deviation of 0.15…

A: Given values: Mean value (X-double bar) = 15.0 ounces  Standard deviation (σ) = 0.15 ounce  Sample…

Q: Do pets and their owners look alike? In an experiment, a statistics student provided subjects with a…

A: From given data we have : X=16,n=25

Q: this is my data i need to creat a scatter plot on execel and approximate the year that penny…

A: This question requires the use of an Excel scatter plot to approximate the year that penny…

Q: Suppose that you are an elementary school teacher and you are evaluating the reading levels of your…

A: For the given distribution (which is distributed normally) of the reading speed (measured in words…

Q: The heights (in inches) and weights (in lbs) of 10 American men are given below. Height Weight 72…

A: The given data is as follows. Height  Weight 72 185 66 140 69 200 68 170 74 220 71…

Q: (Round calculated results to the hundredth (2 place to the right of beyond that unless otherwise…

A: The given data is as follows, Accept rate Grad rate 5 96 5 97 6 95 8 98 10 96 10 94…

Q: random sample of college graduates was surveyed ten years after graduaton with regard to their…

A: To test whether the income level achieved by a college graduate is independent of the graduate's…

Q: 2. A psychologist operating a group home for delinquent adolescents needs to show that it is…

A: Given Information: Consider the given dataset: Natural Home Foster Home Group Home 15 16 10…

Q: What information about the skewness of the data can be inferred from your previous answers?

A: Data given Class Frequency 1.5 - 2 8 2 - 2.5 28 2.5 - 3 17 3 - 3.5 7

Q: Which of the following values cannot be probabilities? 0, -0.57, 1, 5/3, √2, 3/5, 0.04, 1.51 Select…

A: We have given that,  0, -0.57, 1, 5/3, √2, 3/5, 0.04, 1.51 Then,  We have to check the correct…

Q: Salesperson Anne Bob Charlie Dave Evelyn Number of Cars Sold எல்எல்எ of off வில் வில் வில் Each…

A: Let =C and =C/2 Total number of cars = 140 sold by each salesperson

Q: i.i.d. Consider Y₁,..., Yn Bern(p). Consider the following estimator: p = n Y with probability n-1…

A: Given information: p^=Y¯     with probability n-1nn     with probability 1n

Q: Hi so i fixed my data and now i need to identify outliers and i am very confused thanks…

A: Given information: Year Mass 1971 3.1439 1979 3.1024 1975 3.0668 1982 3.0776 1974…

Q: ind out whether each of the following processes {Xt} is weakly stationary or nonstationary. For t.…

A: Given Xt=Xt-1+εt; t≥1

Q: In a certain instant lottery game, the chance of a win is stated as 20%. Express the indicated…

A: Given that In a certain instant lottery game, the chance of a win is stated as 20% i.e, The total…

Q: 19. A sample of final exam scores is normally dis- tributed with a mean equal to 20 and a vari- ance…

A: Given that A sample of final exam scores is normally dis- tributed with a mean equal to 20 and a…

Q: Historically, the SAT score of a randomly selected student has an unknown distribution with a mean…

A: Given,sample size(n)= 44mean(μ)=1510standard deviation(σ)=345.1

Q: In a multiple regression analysis, k = 5 and n = 26, the MSE value is 4.33, and SS total is 413.31.…

A: Given that  k = 5 and n = 26. The mean square error is, MSE=4.33 The total sum of squares is,…