4. A car manager wants to know his clients' favorite car color. He assumes the percentage preference for the year 2022 will be the same as 2021. The percentage distribution for 2021 is shown as below: Popular Color Blue Black 45 Silver 21 White 17 Percentage 17 Recently, he surveyed 800 clients and their responses as shown in the following table: Silver Blue White Response Frequency Black 374 183 127 116 Test at 2.5% significance level, whether the current distribution of opinions is different from the year 2021.

Q: company has 80 customers, 7 of whom are dissatisfied with the deliveries. The company management…

A:

Q: 2B. (a) An exponential distribution has probability density function ƒ(x) = ¹ ex¹², x ≥0. a Show…

A: A continuous random variable X is said to follow Exponential distribution with parameter λ if its…

Q: Given a marginal p.m.f of x (f(x)) that distribute (EJ)uniformly on 1 and 2 and a marginal p.m.f of…

A: Solution

Q: A student was asked to find a 90% confidence interval for widget width using data from a random…

A: Given information- We have given a 90% confidence interval for widget width using data from a random…

Q: In a random sample of 200 graduating high school students, 120 have plans of enrolling in…

A: Solution-: Given: n=200,x=120,P0=0.65,α=0.05 We want to test is the principal's claim that the…

Q: Using the are based on the following sample of ages (in months) of 18 children at a day care 36,…

A: Given  36, 42, 18, 32, 22, 22, 25, 29, 30, 31, 19, 24, 35, 29, 26, 36, 24, 28 n=18

Q: In physiology, an objective measure of aerobic fitness is how efficiently the body can absorb and…

A: Given information: Shapiro-Wilk normality test data: restpulse W = 0.97057, p-value = 0.24418…

Q: 1. How many samples must be considered from a population of 28,000 students, if 5% margin of error…

A:

Q: In a survey, 1000 individuals were asked how often they took exercise in the form of cycling. There…

A: Given information: Total no. of individuals=1000No. of variables=02Variables=1. Cycling 2.…

Q: Let X₁, X₂,..., X be an independent identical random sample from a population with a Rayleigh…

A: Simple Hypothesis: In a simple hypothesis test, the probability density functions for both the null…

Q: A candy bar manufacturer is interested in trying to estimate how sales are influenced by the price…

A:

Q: es are randomly selected with replacement. *** After listing the possible samples and finding the…

A: Given A genetics experiment involves a population of fruit flies consisting of 1 male named Albert…

Q: Problem 7 - (part 1) What is the sum of the mean, median, and mode of these data? 4, 5, 6, 10, 10…

A: Given problem Given that   Given data 4, 5, 6 , 10, 10 Mean : The formula is, = Sum of…

Q: Please provide a correct answer with a full method explanation and do not copy and paste from other…

A: The box plot is constructed on the basis of 5-number summary.

Q: .5 (a) For a certain type of manufactured product, the weight is expected to be 350 gm, and the…

A: Introduction :-  Here we want to do hypothesis testing for single mean.

Q: Let X₁, X2,,Xn be a random sample of size n from Beta (0,1) 72 Show that the random variable - 20…

A:

Q: Given 100, 105, 120, 95, 110, 150, 78, 94, 88. Find: 1. Position of Q1 2. Position of D6 3. Q3

A:

Q: The number K of customers that arrive at Jay's supermarket in a given day has the PMF PK (K) = k =…

A:

Q: 1.- The scores for a Prestatistics exam are given: 90 79 73 61 76 93 33 87 15 49 87 36 a. Construct…

A:

Q: 8. Compute the arithmetic mean. 9. Compute the standard deviation. 10. Construct a histogram to…

A: To find arithmetic mean, we need to find the mid-value of class interval, we can call that as x.…

Q: A keen angler kept a record of the weight of each of his last 51 catches of fish. The weights,…

A: The data is as follows, weight Frequency 0.0-0.4 9 0.5-0.9 12 1.0-1.2 8 1.3-1.7 8…

Q: Problem 7 - (part 1) What is the sum of the mean, median, and mode of these data? 4, 5, 6, 10, 10…

A: Give problem Given that   Given data 4, 5, 6, 10, 10 Mean : The formula is, = ( 4 + 5 + 6 + 10 +…

Q: Given 100, 105, 120, 95, 110, 150, 78, 94, 88. Find: 4. D6 5. P90 6. Q1 7. P35

A:

Q: explain the benefits and disadvantages of having a pilot study participant inside sampling frame

A: Benefits of pilot study participant inside sampling frame:-- * One of the advantages of conducting a…

Q: The local coffee shop keeps track of how much coffee they sell versus the temperature on that day,…

A: Given that  We have to find Σx²:

Q: A manufacturer of shampoo claims that 42% of the shampoo users prefer brand X. To test this claim, a…

A: Solution-: Given: n=59,x=20,P0=0.42,α=0.1 Claim:  A manufacturer of shampoo claims that 42% of the…

Q: Given a marginal p.m.f of x: f₁(x) (x) = { // , for x = 5,6 0 O.W and a marginal p.m.f of y: f2(y) =…

A: Note: According to Bartleby guidelines expert solve only one question and rest can be reposted. Fid…

Q: For a class project, a group of students were curious if there was a connection between color…

A: Selection of the appropriate inferential statistic depends on the number of variables, type of the…

Q: GreenBot Corporations wants to know the experience of their newly hired employees. Through Human…

A:

Q: What is this chart called? multiple choice Frequency polygon Histogram Bar chart b. How many…

A: It is given that the chart shows that the number of packages shipped per day for the last 100 days.…

Q: II. PERFORMANCE TASK Find the percentile rank of 115 and 155 for the following distribution Class…

A:

Q: If your credit card calculates interest based on 17.45% APR, compounded monthly: (a) What are your…

A:

Q: Ophthalmology Table 2 comes from a paper giving the distribution of astigmatism in 1033 young men…

A: Arithmetic mean is given by,  x̄= ΣfiXi/Σfi Xi's are the mid values. Xi fi 0.45 458 1.45 268…

Q: toto In physiology, an objective measure of aerobic fitness is how efficiently the body can absorb…

A: First we define hypothesis for the above test.  The Variables are weight, maximum-pulse and…

Q: Suppose Jim is going to build a Playlist that contains 5 songs. In how many ways can Jim arrange 5…

A: Given: Jim is going to build a Playlist that contains 5 songs.

Q: Correlation Matrix   Correlation Matrix     edlevel salnow age time work salbeg edlevel   Pearson's…

A: Correlation coefficient measures the strength and direction of association between two continuous…

Q: 5. Find and shade the required area. (a) Find the area under the normal curve from z=1.12 to…

A: Here we have to find and shade the required area a) The area under the normal curve from z= 1.12 to…

Q: Two dice were thrown 180 times, and at each throw the number X of sixes was recorded, with the…

A:

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Given that  Margin of error =E =2.5%=0.025 99% confidence.

Q: Suppose that X is a continous random variable taking value between 0 and 1 with the pdf f(x) = 2x.…

A: There is two different question So i am solving first

Q: Three hundred twenty students took a test where the scores are normally distributed. Paul's score…

A:

Q: 1) Is mean or median a better measure of the centre of the “weights” variable in this dataset?…

A: Solution The given histogram contains only the single mode .

Q: Differentiate Independent and Dependent Samples and give an example for each method..

A: Independent samples are samples that are selected randomly in order that its observations don't rely…

Q: The following events are described as results of rolling two fair dice. A = {The sum of two dice is…

A: Given problem Given that   The following events are described as results of rolling two fair dice.…

Q: QUESTION 6 Compute: Σ=1(1+VK) Round the answer to two decimal places.

A: Given that  Σ(1+√k) for k=1, 2, 3, 4  We have to compute the above value :

Q: The maximal altitude of a satellite is given by the formula Y = yo + (R+ yo) + yo) [211 + 1 - 1]. -…

A:

Q: What price do farmers get for their watermelon crops? In the third week of July, a random sample of…

A: Solution

Q: What are the class limits for the third class?   Multiple Choice 75 and up to 78 78 and 80 78…

A: It is given that the first two class midpoints are 73.5" and 76.5".

Q: Exercise: Xì,.,Xn are independent Poisson random variables with mean >, Find UMVUE for A

A:

Q: 95 152 149 124 96 156 111 88 105 130 103 124 74 132 168 98 74 133 99 119 114 140 106 74

A: Arranging the given data set into ascending order, 74, 74, 74, 88, 95, 96, 98, 99, 103, 105, 106,…