If a stock is selected at random, what is the probability it paid dividend?

Q: In a study of pulse rates of men, a simple random sample of 143 men results in a standard deviation…

A: Given Sample size n=143, sample standard deviations s=11.9, level of significance ɑ=0.01

Q: The variance in a production process is an important measure of the quality of the process. A large…

A: Given: n1 = 25 n2 = 22 α = 0.05 Formula Used: Test-statistic F = s12s22

Q: There are 20 black cards, 10 red cards, 12 yellow cards, and 8 green cards on the table.  What is…

A: Given,no.of black cards=20no.of red cards=10no.of yellow cards=12no.of green cards=8Total no.of…

Q: The probability that a randomly selected person has high blood pressure (the event H) is P(H) = 0.4…

A: Conditional probability :  The probability of event A occurring given that event B has occurred is…

Q: 5. The grade point average (GPA) for college students is based on a weighted mean computation. For…

A: Given data: Grades(x): A(4), B(3), C(2), D(1) and F(0) Credits hours earned by student(w) for each…

Q: Required information The main bearing clearance (in mm) in a certain type of engine is a random…

A: Given: f(x) = 625x0<x≤0.0450-625x0.04<x≤0.080Otherwise Formula Used: Standard deviation =…

Q: Lunch break: In a recent survey of 607 working Americans ages 25-34, the average weekly amount spent…

A:

Q: what is the probability that all three are defective? (b) If four items arrive in succession, what…

A: It is given that  P( defective ) = p = 20% = 0.20 Here, we have parameter p = 0.20 and n ( different…

Q: Find the probability of the indicated event if ​P(E)=0.35 and ​P(F)=0.45.   Find​ P(E or​ F) if​ P(E…

A: We have given that,  If E and F are two events with ​P(E) = 0.35,  P(F)= 0.45 and P(E and F) = 0.20.…

Q: Given mean of x =43, standard deviation of x = 11, standard deviation of y = 1.2, r xy = 0.7, mean…

A:

Q: A manufacturer of bolts has a quality-control policy that requires it to destroy any bolts that are…

A: Given that μ=8,σ=0.10

Q: Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: 4. The time taken to assemble a car in a certain plant is a random variable having a normal…

A:

Q: Here are the shopping times (in minutes) for a sample of 17 shoppers at a particular clothing store:…

A: Given: Sample size n = 17 Initial class boundary = 21.5 Class width = 5

Q: The accompanying data represent the pulse rates (beats per minute) of nine students. Treat the nine…

A: The data shows the pulse rates of nine students.

Q: As preparation for designing a new line of business wear, a clothing manufacturer asked a large…

A: concept:Pie chart are used for graphical representation of quantitative data

Q: The following circuit operates if and only if there is a path of functional devices from left to…

A: Given that: The two device functions A and B, which consist of three components, are connected in…

Q: The following stem-and-leaf plot is constructed using data collected from the speed (km/h) of cars…

A: The stem and leaf plot is given for the data set. The key is given by, 50|9 = 50.9 Similarly the key…

Q: ompanying data are lengths​ (inches) of bears. Find P5.  35.5, 37.5, 39.5, 39.5, 41.5 ,43.0, 43.5,…

A: Given: The data given is as below 35.5 37.5 39.5 39.5 41.5 43 43.5 45.5 46…

Q: b. What is the frequency of the 3.0 to <3.5 interval? 8 c. What proportion of the dividend yields…

A: GIVEN DATA  dividend yield frequency 2.5 to &lt; 3.0 5 3.0 to &lt; 3.5 6 3.5 to &lt; 4.0 11…

Q: Use the information below to construct a 2x2 table and answer the following question: Risk Factor…

A: Given that: Risk Factor Outcome Has Outcome Does not have outcome Exposed 19 139 Not…

Q: 2. Suppose that p(x) = 1/5, x = 1, 2, 3, 4, 5 is the pmf of X. Find (a) E(X) (b) Var(X) (c) E [(x +…

A: Data given P(X=x)=1/5 ; x=1,2,3,4,5

Q: A Filipino maize breeder who is apprehensive about the low rate of adoption of new high-yielding…

A: Given information: A maize breeder is apprehensive about the low acceptance of new high yielding…

Q: 1. A foundation, that aims to help families that were struck by natural disasters, conducted a fund-…

A: Given that We have to find mean, median and mode:

Q: The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates.…

A: The frequency distribution of cigarette tax rates are given.

Q: 5) A maize farmer plans to plant varieties X and Y of maize each in four plots. Illustrate a…

A:

Q: Using the data below, what is the value of MSE? Month

A: Let y denote the actual values and y(pred.) = denotes the forecast values.

Q: In a packing plant, a machine packs cartons with jars. It is supposed that a new machine will pack…

A:

Q: If Q1 is the value for which 25% of observations are smaller, then A. Only 25% of the observations…

A: Given: Q1 is the value for which 25% of observations are smaller. Q1 is known as a lower quartile.

Q: culate the mean of the sample data set represent via distribution below. Classes Frequency 8-11…

A: From the provided information, Classes Frequency (f) 8-11 5 12-15 8 16-19 7 20-23 6…

Q: Let x denote the time (in minutes) that it takes a fifth-grade student to read a certain passage.…

A: Solution-: Given: μ=2,σ=0.5    We want to find, (a) When n=9, μx¯=?and σx¯=? (b) When n=40, μx¯=?and…

Q: ■ Among a sample of 5 workers the hourly wages $16, $18, and $19. ■ What's the sample standard…

A: We have given that,  Sample of 5 workers the hourly wages are : X : 12, 20, 16, 18, 19 Then,  We…

Q: Being a parent is often similar to being a scientist: You use a lot of trial and error to identify…

A: Interaction effect: An interaction effect tells us about how the two or more independent variables…

Q: 2. The Department of Trade and Industry reported that the mean retail price per gallon of a certain…

A: Let X be the retail price per gallon follow normal distribution

Q: The regional transit authority for a major metropolitan area wants to determine whether there is a…

A: Given  Information: Consider the given dataset: Age of bus Annual Maintenance cost 1 350 2…

Q: 8. There is a 50-50 chance that the queen carries the gene of hemophilia. If she is a carrier, then…

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

Q: Find the probability distribution for the number of spades.

A: We know that There are 52 cards in the deck divided into two colour i.e red(26) and black (26).…

Q: A bag of 30 tulip bulbs contains 11 red tulip​ bulbs, 11 yellow tulip​ bulbs, and 8 purple tulip…

A: here given, 30 bag of tulip bulbs. 11 red tulip bulbs. 11 yellow tulip bulbs. 8 purple tulip bulbs.…

Q: from populations with means μ₁ = 2 and M₂ = 8 and variances ₁² = 5 and σ₂² = k, respectively.…

A: Solution

Q: (c) Suppose that a random sample of size 2 is to be selected, but this time sampling will be done…

A: Population given We have to select sample of sample size=2 With replacement and without replacement…

Q: The Pearson correlation coefficient between two variables (education and income) is .354. Answer the…

A: Given that  The Pearson correlation coefficient between two variables (education and income) is…

Q: 2. ) Find the items asked below. Answer with 2 places to the right of the decimal if necessary.…

A: As per our guidelines we suppose to answer only three sub parts. Given data is85 , 88, 84, 83, 83,…

Q: tY₁, Y2, Y3, Y, Y, be a random sample of size 5 from a standard normal population. Fine coment…

A: Data given Yi ~N(0,1)  ; i=1,2,..,5  Mean=0, variance=1  Random sample.

Q: Find the 14th percentile, P14,  from the following data 12 12.2 15.6 17 18.1 19.4 20.8 21.5 30.4…

A:

Q: The amount of time (minutes) a sample of students spent on online social media in a 4-hour window is…

A: Given data is Class Interval  Frequency 0 to &lt;10 5 10 to &lt;20 13 20 to &lt;30 16 30…

Q: Use the given information to find the minimum sample size required to estimate an unknown population…

A: GivenMargin of error(E)=5standard deviation(σ)=60confidence level=95%

Q: b. What is the total administrative cost for an estimated activity level of 5,440 counseling hours?…

A: as per our company guidline we are supposed to answer only 3 sub part. for remaining please repost…

Q: Which of the following Python methods is used to perfo population mean when the population standard…

A: Solution: We have to determine python methods for hypothesis testing.

Q: A one-way analysis of variance was conducted.  The results of the ANOVA were significant, F(2, 432)…

A: From given data : A One-Way analysis of variance was conducted. The results of the ANOVA were…

Q: 16. If P(A/B)=0.3 and P(B) = 0.2, determine the probability of P(BIA). 0.16 0.20 01.0 None of the…

A: From the provided information, P (A|B) = 0.3 And P (B) = 0.2