Calculate the mean deviation and its coefficient from the following data : Class Frequency Class Frequency 40-50 20 0-10 8 50-60 14 10-20 12 60-70 12 20-30 15 70-80 6 30-40

Q: The estimated margin of error is ________ The sample mean is _________

A: Solution;  confidence interval of mean height( u) is  : { xbar +/- M.E(xbar)}= (2.1, 3.1)  xbar- ME(...

Q: v find the number of items (n):

A: Here use formula of correlation coefficient 

Q: 50 individuals were asked to choose their favorite fruit between 5 options. ( banana , figs? Mango ,...

A: As it is not numerical data so it's not appropriate to find mean or median as a measure of central t...

Q: Let x be a random variable that represents the batting average of a professional baseball player. Le...

A: Note: As per guidelines only first 3 subparts have been answered if you need answers for the rest of...

Q: Estimate the absolute deviation and the coefficient of variation for the results of the following ca...

A: The objective is to estimate the absolute deviation and the coefficient of variation for the results...

Q: Calculate the standard deviation from the data given below : Size of item Frequency Size of item Fre...

A:

Q: The grades on a statistics mid-term for a high school are normally distributed, with μ = 81 and σ = ...

A: As per Bartleby guideline expert have to answer first three subparts only dear student please upload...

Q: Prehistoric pottery vessels are usually found as sherds (broken pieces) and are carefully reconstruc...

A: Note: As per guidelines only first 3 subparts have been answered if you need answers for the rest of...

Q: A. Given u = 200 and o = 24, compute for the corresponding z-scores of the following raw scores. Rou...

A:

Q: A group consists of 150 children. The group is divided into three subgroups A,B and C in the ratio o...

A:

Q: How manly liked apples only? How many liked bananas only? How many liked cantaloupes only? How ma...

A: HERE from given information  define events A = students like apple B = student like banana C= studen...

Q: Example 1 Compute (i) A.S B.R (1) GFR and (i) TER from the data given below: Age group 15-19 20-24 2...

A:

Q: If the size of a sample is 64 and standard error of mean is 1.5.What should be the sample if standar...

A:

Q: ) In a Class election the top 3 are given position of Class Prefect, Class Representative and Social...

A: here use combination and permutation  

Q: Find the median and meán deviation of the following data : Size Frequency 7. Şize Frequency 0-10 40-...

A:

Q: 87,87,87.5,88.5,89,90,92,92,100 what is the proportion above 87.5?

A:

Q: (3) The time it takes a new student to complete advising and registration time follows normal distri...

A: Given that Mean(µ) = 45Standard deviations (σ) = 20 Sample size (n) = 36 x̅~ N (µ, σ/√n )= N (45, 20...

Q: Define linear regression analysis

A: Linear regression analysis is used to forecast the value, to check the relationship between two vari...

Q: IP A firm buys three types of equipments A, B and C on January 1, 1991. The purchase price and depre...

A: Given that -

Q: Find the coefficient of skewness from the tollowing intormation : Difference of two quartiles = 8 Mo...

A: Given data is Difference of two quartiles(Q3-Q1) =8 Mode = 11Sum of two quartiles(Q3+Q1) = 22Mean = ...

Q: A scientific study was conducted to determine the hours of sleep that college students get per night...

A: Given,sample size(n)=20

Q: The value for x such that P(X<x) = 0.95. X = Round your answer to the nearest integer. eTextbook and...

A: Let X be the random variable from log normal distribution with parameters θ = 5 and ω2 = 9 Then,  We...

Q: Let X1, ..., Xn be IID from Uniform(θ1, θ2). Use the method of moments to estimate θ1 and θ2, the me...

A:

Q: The salaries paid to the managers of a company had a mean of dollar 20,000 with a standard deviation...

A:

Q: Answer the following questions in your own words: 1. After reading the article “HESI Exams An Overvi...

A: Various Parameters are included in the HESI (Health Education Systems Inc.) Exams to test the studen...

Q: Example 1 From the index numbers given below find out index numbers by shifting the base from 1990 t...

A:

Q: Example Calculate mean deviation from mean and median for the ollowing data of heights given in inch...

A:

Q: In a group of 10 workers, the wage of the lowest paid worker is Dollar 25 less than the average wage...

A: Solution is given:

Q: I (2) Granola comes in a medium-size box. The weight of granola in the box is normally distributed w...

A:

Q: Find Mean Deviation : (i) about Mean (ii) about Median,

A: here given observation n= 3 here calculate mean and median and then mean deviation about them  

Q: Find the lower bound of the 95% confidence interval for the mean sale time for all homes in the neig...

A: Given: Sample size, n=22Sample mean, x¯=190Population sd,σ=72

Q: Suppose that x has a beta distribution with parameters a =D 2.9 and B = 1. Determine to 4 decimal pl...

A: Let X be the random variable from beta distribution with parameter α = 2.9 and β = 1 Then,  We will ...

Q: If 10 is subtracted from every item in a data than the coefficient of variation of the resulting set...

A:

Q: If (X, Y) is uniformly distributed over the semicircle bounded by y = 1-x? and y = 0, find E(X/Y) an...

A:

Q: Define bivariate analysis

A: Given : Term : Bivariate Analysis

Q: Suppose thatX has a lognormal distribution with parameters 0 = 5 and w? = 9. Determine the following...

A: We have given that X has a lognormal with parameter θ=5 and w2 = 9.

Q: 15) The health of employees is monitored by periodically weighing them in. A sample of 54 employees ...

A: Given: Sample size, n=54sample mean, x¯=183.9Population sd, σ=121.2α=0.10

Q: Explain Conducting Qualitative Field Research?

A: Field research is a qualitative method of data collection.

Q: Calculate correlation coefficientbetween Xand Y from the following sample data

A: We have to calculate the correlation coefficient between variables X and Y.

Q: The annual salaries of a group of employees are given in the following tables: Salaries (in $ '000) ...

A:

Q: Question 1 Consider the CCAPM model and the following equation for the price of an asset in equilibr...

A:

Q: data: FieldA and FieldB df- 34.751, p-value 0.001292 alternative hypothesis: true difference in mean...

A: From the given information, df=34.751 and p value is 0.001292 Alternative Hypothesis: True differenc...

Q: When is Rank correlation coefficient preferred to Karl Pearson's method? In a bivariate sample, the ...

A:

Q: onsider the following random walk with drift Yt = 6+ Yt-1 + et, Vt 2 1, where et ~ WN(0, o2) nere Yo...

A:

Q: Define analysis of variance (ANOVA)

A: ANOVA : It is a statistical method  

Q: 1. Let X be a continuous random variable with the following density function: cx,0<x<2 f(x)= . 0, ot...

A: given;X be a continuous random variable with density function:f(x)=cx0≤x≤20otherwise

Q: 1. Two forecast scores S(F,y) and S(G, y) are independent 2. The squared error (y – µF)² is a proper...

A: Solution:

Q: How many two digit numbers can be formed from the digits 1, 3, 7 and 9 when the digits are: (a) not ...

A:

Q: 2. For events A and B, P(A)=0.6, P(B)= 0.7 and P((B|A) = 0.2. a) Find P(A OB) b) Find P((A|B)

A:

Q: A study was carried out into the attendance rate at a hospital of people in 16 different geographica...

A: Coefficient  correlation : The correlation coefficient is a statistical measure of how strong a rela...