50 tickets numbered A bag contains 1,2,3,4......50 of which five are drawn at random and arranged in ascending order of magnitude. Find the probability that third drawn ticket is equal to 30.

Q: In April of 2011, the unemployment rate in Canada was reported to be 7.7%. Suppose that Statistics…

A: One sample proportion test is used to compare the significance difference between sample proportion…

Q: Find the (a) mean, (b) median, (c) mode, and (d) midrange for the data and then (e) answer the given…

A: To find: e. What do the results tell us about the population of all celebrities? And ; Based on the…

Q: A random sample of 25 statistics students was asked: "Have you smoked a cigarette in the past week?"…

A: From the provided information, Sample size (n) = 25 Six students reported smoking within the past…

Q: The following data gives the number of hours 10 students spent studying and their corresponding…

A:

Q: A fitness company is building a 20-story high-rise. Architects building the high-rise know that…

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Q: In botanical lab, three varieties of corn were grown.  The yield results in kilograms are as…

A: The data shows the three varieties of corn were grown.

Q: 2) Find d. Assume the samples are random and dependent, and the populations are normally…

A: Given Assume the samples are random and dependent, and the populations are normally distribution

Q: Currently samsung ships 23.4 percent of the organic lighting- emitting diode displays in the world.…

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Q: = statistic Y = X a sufficient statistic for 0? Why? (y; 0) be the pdf of Y. Is the family {fy (y;…

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Q: Describe the unethical behavior in each example and describe how it could impact the reliability of…

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Q: What are Gamma Random Variables?

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Q: Bloomberg Intelligence listed 50 companies to watch in 2018…

A: The null hypothesis of the form: H0: β1 = 0, that is slope is 0. The alternative hypothesis is of…

Q: Select the equation of the least squares line for the data: (51.00, 1.0), (48.75, 2.5), (52.50, .5),…

A: Given: n = 7 Formula Used: The equation of the least squares line is: y^ = a + bX Slope b =…

Q: How is the shape of the F distribution affected by the degrees of freedom?

A: Given data How is the shape of F distribution affected by the degrees of freedom

Q: Students want to study the propotion of people in their university community who have tested…

A: given data, n=780x= no. of positive =x=516CI=0.99α=1-0.99=0.01

Q: A leading magazine (like Barron's) reported at one time that the average number of weeks an…

A: given data normal distribution μ = 30σ = 7n = 36

Q: Is the following statement correct? Give reasons. The regression coefficient of x on y is 3.2 and…

A: Yes,the following statement is correct The regression coefficient of x on y bxy = 3.2 TThe…

Q: Example 2.21 (Expectation of an Exponential Random Variable) Let X be expo- nentially distributed…

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Q: The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is estimated…

A: Given n=14 P=0.45

Q: The table below gives the age and bone density for five randomly selected women. Using this data,…

A: Given: n = 5 Formula Used: Slope b1 = n∑XY-∑X∑Yn∑X2-∑X2 Intercept b0 = ∑Y-b1∑Xn

Q: A word consists of 9 letters; 5 consonants and 4 vowels.Three letters are choosen at random. What is…

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Q: The mean number of minutes for app engagement by a tablet user is 8.2 minutes. Suppose the standard…

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Q: A study was conducted to determine the proportion of people who dream in black and white instead of…

A: From the provided information, n1=323x1=71n2=288x2=14

Q: 1) Use the simple and conservative estimate to find the degrees of freedom and find only the…

A: as per guideline expert have to answer first question only.  given data x¯1 =28s1 = 1.5n1 = 25x¯2 =…

Q: Example 2.7 It is known that any item produced by a certain machine will be defective with…

A: Givenprobability of any item produced  by a certain machine will be defective(p)=0.1sample…

Q: define Alpha test and beta test

A: Alpha Test: The significance level or alpha level is the probability of making the wrong decision…

Q: 3) Find only the margin of error to construct a 98% confidence interval for p1 - P2. Assume the…

A: given data  n1 =1 000   x1 = 250p^1 = x1n1 = 2501000 = 0.250 n2 = 1200    x2 = 195 p^2 = x2n2 =…

Q: Table 3.4 shows a random sample of 100 hikers and the areas of hiking they prefer. Sex The Coastline…

A:

Q: Rating of Male by Female Rating of Female by Male 40 46

A: Solution: The data for the male attribute ratings and female attribute ratings is given.

Q: werage yearly invento g cost of $115 for the ager of the store wou -paced intervals throu -s should…

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Q: On the planet of Mercury, 4-year-olds average 3 hours a day unsupervised. Most of the unsupervised…

A: given data ,normal distribution,μ=3σ=1.4we have to find out the given probabilities.

Q: Find the P-value for the following values of the test statistic f, sample size n, and alternate…

A: Given: t = -1.467 n = 21 H1 : μ ≠ μ0

Q: Example 2.32 Suppose there are 25 different types of coupons and suppose that each time one obtains…

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Q: A study is conducted to see if the presence of physical recreation related infrastructure (e.g.…

A: Cohort study: In this type of study, a group of subjects called cohort is studied to find out…

Q: Test the claim that the proportion of people who own cats is smaller than 80% at the 0.10…

A: Given that  X = 370 , n = 500 , p = 80% = 0.80 , q = 1 - p = 0.2

Q: Are male college students more easily bored than their female counterparts? This question was…

A: First we state the hypothesis for testing the difference of two means,  H0: The mean Boredom…

Q: What kind of research design should we use here (between-groups or within-groups? 2.) Which…

A: Between subject's study design is used to test different individuals on each condition, so that each…

Q: A box Contains 46 Red marbles 58 White marbles and S1 blue marbles If a marble is Randomly selected…

A: Given 46 Red marbles 58 white marbles 51 blue marbles

Q: Suppose the joint density of X and Y is given by [6xy(2-x-y), 0<x< 1,0 <y<1 otherwise Compute the…

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Q: Consider two urns. The first contains two white and seven black balls, and the second contains five…

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Q: The decline of salmon fisheries along the Columbia River in Oregon has caused great concern among…

A: Given data: Sample size= 10 Confidence level= 95%

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: GivenMean(μ)=0standard deviation(σ)=1

Q: A new car salesperson knows that he sells cars to one in every twenty customers who enter the…

A: Given The probability of selling a car is 1/20=0.05

Q: Here are summary statistics for the weights of Pepsi in randomly selected cans: n=36, x=0.82408 lb,…

A: GIVEN DATA,n=36X¯=0.82408S=0.00568CI=0.95α=1-0.95=0.05df=n-1=36-1=35

Q: What is the point estimate of the population mean (mu) symbol? s 0 X Z t

A: Option C is the answer. Answer : X bar

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

A: GivenMean(μ)=216standard deviation(σ)=6.2sample size(n)=75

Q: Seventy percent of the light aircraft that disappear while in flight in a certain country are…

A: We can understand the above problem by creating the table,    Have an emergency locator  do not…

Q: The table below gives the number of hours spent watching TV last week by a sample of 24 children. 68…

A: Solution

Q: S(t) = 0.1 x (100-t)0.5, 0<=t<=100. Please calculate: E(T) Var(T)

A: Solution: From the given information,