Find the 7h decile and 60h percentile from the following data : Wages ( $) 30-40 40-50 50 60 60 70 70-80 80-90 90-100 No. of workers 3 21 43 32 9

Q: (b) Compute the correlation coefficient between systolic and diastolic blood pressure. Round the ans...

A:

Q: The following table gives the distribtution of weekly income of 160 families in a town : Weekly Inco...

A: Percentile : A k-th percentile (percentile score or centile) is a score below which a given percenta...

Q: A certain university has 12 vehicles available for use by faculty and staff. Four of these are vans ...

A: We have given that  Number of vans = 4 Total number of vehicles = 12  

Q: The population mean and standard deviation are given below. Find the required probability and determ...

A:

Q: What is the 70th percentile? Score f 25 2 23 4 21 3 19 5 17 3 15 2 12 1

A: Percentile : A k-th percentile (percentile score or centile) is a score below which a given percenta...

Q: The monthly utility bills in a city are normally​ distributed, with a mean of ​$100 and a standard d...

A:

Q: If arithmetic mean and geometric mean of two values are 10 and 8 respectively, find values.

A:

Q: What are the quartiles of a distribution? How do we find them? What are the quartiles of a distribut...

A: what are the quartiles of a distribution? how do we find them?

Q: What are the quartiles of a distribution? How do we find them? What are the quartiles of a distribut...

A: Given that  We have to define the Quartile and how to find it:   

Q: Explain the given mathematical relationship as it is used to help understand the General Transport E...

A: question:

Q: The acccompanying data set lists the retirement ages for 24 doctors. Use the data to construct a cum...

A: For the given data Complete the cumulative frequency distribution table below. Use the minimum data ...

Q: A pharmaceutical company conducted a study to test the effectiveness of its new anti-depression medi...

A:

Q: The average life span of TV sets manufactured by Company X is 10.5 years. The standard deviation is ...

A:

Q: Body temperature (in degrees Fahrenheit) of randomly selected normal and healthy adults are shown be...

A:

Q: The table below gives the life table for rabbits. Find d2, p1, 92, L3, e4°. 3 1 2 4 6 Ix 100 90 80 7...

A:

Q: Need help answering and showing the work so I can look at how to do it

A: Trailer views Box office gross 7.344 20.368 81.471 102.309 35.286 65.127 20.31 19.108 3.36...

Q: The observed values of a function are respectively 168, 120, 72 and 63 at /the four positions 3, 7, ...

A: To find the best estimate of a functional value corresponding to a particular value of the independe...

Q: The observed values of a function are respectively 168, 120, 72 and 63 at (the four positions 3, 7, ...

A:   Values of Dependent variable(Y) and independent variable (X) are given, Y: 168, 120, 72, 63  X: 3 ...

Q: According to Chemical Engineering Progress (November 1990), approximately 30% of all pipework failur...

A:

Q: The values of aritnmetic mean and standard deviation of the following frequency distfibution of a co...

A:

Q: The length of human pregnancies from conception to birth approximates a normal distribution with a m...

A:

Q: 2. One of the country's most pervasive societal issues appears to be violence against women (VAW). A...

A: Given data is

Q: The following zero-order correlation coefficients are given riz =0.98, r, = 0.44 and r, = 0.54. Calc...

A: Given: r 12 = 0.98 r 13 = 0.44 r 23 = 0.54  

Q: 2. A big company donated a total of 1,000 packs of school supplies to be given to the students in ru...

A:

Q: Use the normal distribution of SAT critical reading scores for which the mean is 505 and the standar...

A:

Q: Write all the possible values of random variable A: Product of two numbers taken from two boxes cont...

A:

Q: The following zero-order correlation cocfficients are given "12 = 0.98, r, = 0.44 and r, = 0.54. Cal...

A:

Q: Jack is playing with a standard deck of 52 playing cards. He shuffles the cards and then turns the t...

A:

Q: 2. Please find the following: X-BAR (sample mean), b. "S" (sample standard deviation, +/- 1, 2 and 3...

A: For the given data Find mean,s.d,variance,draw bell curve

Q: Following are the marks obtained by two students A and B in 10 sets of examination 10 Sets 1 2 3 4 5...

A:

Q: For 10 observations on price (p) and supply (S) the following data were obtained (in appropriate uni...

A:

Q: You are given the following data : Value: 25 17 30 Weight : 5 3 4 ? If the weighted GM of all the fo...

A: Given:  If the weighted GM of all four items is 15.3  

Q: Independent random samples of professional football and basketball players gave the following inform...

A: CI=(x̄1 - x̄2) ± ME

Q: Let X, X2, . .. , X, be i.i.d. standard normal random variables, i.e., with mean 0 and variance 1, a...

A: A continuous random variable Z is said to follow Standard Normal distribution if its probability den...

Q: 5. The grade in Psychological Statistics of a class in a preliminary exam are as follows: Complete t...

A: Disclaimer : “Since you have posted a question with multiple sub-parts, we will solve first three su...

Q: 8. A cigarette manufacturer sent each of two laboratories presumably identical samples of tobacco. E...

A: Given that    Lab 1 Lab 2 24 27 27 28 26 23 21 31 24 26         a..We have to find w...

Q: I. Given the set of sample raw scores 10, 12, 16, 18, 19, 21 a. Convert each raw score to its z-tran...

A:

Q: Theorem 3-17. For any three events A, B and C defined on the sample space S such that BcC and P (A) ...

A:

Q: 65% of the dogs in the competition run at the Excellent or Master’s level. Suppose 20 dogs are rando...

A: From the provided information, 65% of the dogs in the competition run at the Excellent or Master’s l...

Q: A normal distribution has a mean of 0 and a standard deviation of -1.0. Is this possible? Explain. ...

A: I want to tell you which one is the correct choice  Given  Normal distribution with mean=0 and stand...

Q: A probability experiment is conducted. Which of these cannot be considered a probability outcome? O-...

A:

Q: Insurance companies are interested in knowing the population percent of drivers who always buckle up...

A:

Q: 2. Casuarina equisetifolia (Australian pine) is allelopathic, but some studies have found that C. eq...

A: One way ANOVA : One way ANOVA is a hypothesis testing testing in which three or more than three grou...

Q: A manufacturer of bicycle tires has developed a new design which he claims has an average lifespan o...

A:

Q: Example 5. Calculate 5-yearly and 7-yearly moving average of the data given below to obtain trend va...

A:

Q: Example 4. Calculate Coefficient of Correlation from the following results : n= 10, ΣX = 100 , ΣY = ...

A:

Q: a. Determine the mean of EX. b. Determine the standard deviation of EX.

A: It is given that Sample size n = 39 Mean μ = 57 and SD σ = 4

Q: From the sample data above, perform the following steps. d. At a 5% significance level, test the reg...

A: Given information: The data represents the values of the dependent variable and the independent vari...

Q: d. For the 34 people, find the probability that the average coffee consumption is between 15.7 and 1...

A: Given  Mean=μ=16, standard deviation=σ=5.5   

Q: Let Xi, X2, f(x;e)- ee *I c0.00 (x). Find a l00y or percent confidence interval for the the populati...

A: