The age distribution of the members of a cer- tain children's club is as follows: Age on last birthday (in years) Frequency 4 5 18 35 8. 42 6. 32 10 15 11 12 3 There is a member A such that there are twice as many members older than A as there are younger than A. Estimate his age (in years up to two places of decimals).

Q: The mayor of a town has decided to support the development of a new highway by their town. The vote ...

A: Given,n=4175x=3128p^=xnp^=31284175=0.74921-p^=1-0.7492=0.2508α=1-0.95=0.05α2=0.025Z0.025=1.96     (f...

Q: The set of data below shows the number of free-throws made out of 10 by eight players on a basketbal...

A: Given that  The set of data below shows the number of free-throws made out of 10 by eight players on...

Q: When practicing basketball, Rachel has a 71% chance of making a free throw. She shoots 11 free throw...

A: Let the random variable X be the number of free throws from binomial distribution with probability (...

Q: Question: 65 kids was surveyed, and it was found that each of the kids surveyed liked at least one o...

A:

Q: 6. An insurance portfolio produces N claims with the following distribution: n Pr(N = n) %3D 0.1 0.5...

A: We have the following information with us as follows : N= number of claims X= Individual claim amoun...

Q: Suppose IQ scores are approximately normally distributed with a mean of 100 and a standard deviation...

A: Property of normal distribution  Mean=median=mode   

Q: Find the mean deviation about mean of rectangular distrihution

A:

Q: records of 100 of per past students over a three-ye= for analysis. Exhibit 1 below shows the results...

A: Given, population mean (µ) = 85 sample mean (x̄)  = 75.4 population standard deviation (σ) = 15 samp...

Q: Marks in an examination are approximately normally distributed with mean 75 and standard deviation 5...

A:

Q: Assume the random variable X is normally distributed with mean u= 50 and standard deviation o=7. Com...

A: Let X be the random variable from normal distribution with mean (μ) = 50  and standard deviation (σ)...

Q: Other than the typical 90%, 95% and 99% confidence intervals, we may want to work with any other con...

A: Note: This critical value calculated from standard normal distribution table at level of significanc...

Q: a. If PO1 Dela Cruz's waist girth is 32, how many standard deviations away is he from the mean? b. W...

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

Q: what must be the decision when the value of G calculated > G tabulated! A. Either discarded or retai...

A:

Q: Find the mean deviation about mean of rectangular distribution,

A:

Q: Calculate Pearson's Coefficient of Skewness from the table given below : Life Time (Hours) No. of Tu...

A: Skewness measure the spread of the data. There are three types of skewness, they are positive skew, ...

Q: If the Standard Error SE( y ) is 1.299 and if the sample standard deviation is 4.87, what is the sam...

A: It is given that S.E(mean) = 1.299 Sample SD s = 4.87  

Q: The t-distribution table shows a value of 1.72 for error of 0.05 and 22 degrees of freedom. We have ...

A:

Q: For a certain frequency table which is partly réproduced here, the mean was found to be 1'46. No, of...

A:

Q: Question 1: The Gulf Trading Company plans to purchase an embroidery machine for their sewing unit. ...

A: INTRODUCTION:  Variance: Variance is the statistical tool used for checking the variability of the d...

Q: stration 17.39. In a Poison distribution, the probability P(x} for x=0 is 10 per cent. Find the mean...

A: The probability for x=0 is 0.10 We have to find mean of the distribution.    

Q: Using the Z table provided, find the value of a. P[-a < Z < a] = 0.9954

A:

Q: There are 18 athletic teams at MVCC.  To determine what programs athletes are majoring in, a researc...

A: Sample is a group of objects which are taken from a large population. There are various methods by w...

Q: Sources of Variation Degrees of Freedom Sum of Squares Between 4 200 Within 40 3547 Suppose the samp...

A: Farmula used  dfwithin=N-k dfbetweem=k-1   

Q: 4. Use Descriptive Statistic tool on the Data Analysis to find the follov а. Мean b. Mode c. Median ...

A: Since you have posted a question with multiple sub-parts, as per our guidelines we have provided ans...

Q: For the frequency table shown below, answer the following questions. 1.What is the median of the dat...

A: Given data : 0,0,0,0,0,1,1,1,1,1,1,1,1,1,2,2,2,2,3,3,4,4,4  

Q: * Null hypothesis HO: It is the hypothesis to be tested. It is a statement of what we believe is tru...

A: We know that  Null hypothesis H0 and alternative hypothesis H1.

Q: II. For each of the following variables, indicate whether it is qualitative or quantitative variable...

A: Quantitative data: Data that can be counted or measured, and given a numerical value. Qualitative da...

Q: Suppose you need to take a sample of respondents who own a Laundry Business from Luzon, Visayas, and...

A:

Q: A particular fruit's weights are normally distributed, with a mean of 322 grams and a standard devia...

A:

Q: Here are histograms of the values taken by three sample statistics in several hundered samples from ...

A: Given that  histograms of the values taken. by three sample statistics in several hundered samples f...

Q: 6. The distribution of exam scores in a population is normal with a mean of 81 points and a standard...

A: We have given that Population mean μ =81 Population standard deviation =2.2  

Q: 12. Given the following information. Material Required Unit Quantity Required Price (Rs.) 2000 2002 ...

A:

Q: Question(14): A researcher wanted to know whether children  who live in two different neighbourhood...

A: The appropriate conclusion regarding the mean amounts of exercise, that is received by the children ...

Q: A manager accepts the work submitted by his typist only when there is no mistake in the work. The ty...

A: Let x be the random variable denotes the number of mistakes per letter. The 20 letters are typed wil...

Q: 6. . Suppose that Y,,Y,..Y, form a random sample from a distribution for which the p.d.f. is as foll...

A: Given that, if Y1, Y2, ...Yn form a random sample from a distribution for which the pdf is given as ...

Q: Paasche's price index number for 2005 is : (A) 132.90 (B) 143.90 (C) 153.90 (D) 163.9O.

A:

Q: .What is the expected value of the gameand what would be a fair price for the game? Both  answers sh...

A: A carnival game consists of a player to guess the result of a toss of a fair 6 sided die if the play...

Q: Activity: SAMPLING DISTRIBUTIONS OF THE SAMPLING MEANS A. Directions: Consider the given, then analy...

A: Here mention to solve 3 and 4 Given : Population size (N) = 4 This are : 12 , 14 , 16 , 18 Sample si...

Q: (i) Calculate the probability that the advertisements are clicked on at least 10 times in a one minu...

A:

Q: Calculate the coefficient of correlation for the ages of husband and wife : Age of husband Age of wi...

A: Given: Age of husband x Age of wife y 23 18 27 22 28 23 29 24 30 25 31 26 33 28 ...

Q: Graph the frequency polygon of the following scores of student in a quiz (refer to Table A) 2. Now i...

A: We have to construct frequency polygon for Table A and Table B We have to compare shape for both  

Q: Consider the first sample to be the sample of occupants not wearing seat belts and the second sample...

A: To conclude the claim of indifference between the "proportion of occupants killed wearing the seat b...

Q: One hundred teachers attended a seminar on mathematical problem solving. The attitudes of representa...

A:

Q: Use the OCumulative Normal Distribution Table to find the z-score for which the area to its right is...

A:

Q: Confidence intervals A) Helps estimate the probable error of the sample mean's, estimate of true po...

A: Given some statement about confidence interval.  We have to choose the correct statement.   

Q: The mean weight of 150 students in a class is 60 kg. The mean weight of boys in the class is 70 kg. ...

A:

Q: Mrs. Paul wants to test that claim that, on average, her students average mark is 85. She pulls the ...

A: We have given that  Sample size n =100 Sample mean =75.4 Population standard deviation =15 NOTE:- Ac...

Q: The probability that it came from subcontractor B, is

A: Here use Bayes rule 

Q: Guide Question: 1. What keywords will lead you to arrive at the correct answer? Exercise 2: Complete...

A: The Mean is the measure of central tendency. It provide the average observation in the data set. It ...

Q: A refrigerator manufacturer claims that the mean life of its competitor's refrigerators is less ...

A: