From a lot of 10 items containing 3 defectives, a sample of 4 items is drawn a random. Let the random variable X denote the number of defective items in the sample. Find the probability distribution of X when the sample is drawn without replacement.

Q: If, in a sample of n = 20 selected from a normal population, X= 53 and S = 12, what are the critical…

A: Here, n= 20 and α=0.01. As the direction of H1 is "not equal to", this is a two tailed test.

Q: Part 1 Choose the correct answer below.

A: To explain the confidence interval limit

Q: what is the  z score of 128,101,116,119,131 when the mean is 119 and variance is 36

A: It is given that  Mean, μ = 119 Variance, σ2 = 36 Standard deviation, σ = 6 Z-Score, Z = ( X - μ )/σ

Q: According to researchers, the mean length of imprisonment for motor-vehicle-theft offenders in a…

A: Given,sample size(n)=100sample mean(x¯)=17.3population standard deviation(σ)=4α=0.1

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

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

Q: Two containers, labeled A and B, are filled with red and blue marbles according to the quantities…

A: Given datacontainer       A         BRed                80       40Blue               20       60

Q: A marine biologist claims that the mean length of mature female pink seaperch is different in fall…

A: Correct option: Option A

Q: It is always good to have as narrow a confidence interval as possible, because a C.I. is an estimate…

A:

Q: If you chose to compute a mean for a variable, which measure of variability would you most likely…

A:

Q: The hypotheses are Ho: The number of hours volunteered is independent of the type of volunteer. HA:…

A:

Q: To compare the dry braking distances from 30 to 0 miles per hour for two makes of automobiles, a…

A:

Q: om variable with the following distribution and let Y = 2X2 - 3. a) what is the distribution of Y?…

A: x -1 0 1 2 f(x)  0.1 0.2 0.4 0.3 If discrete random variables x and y are defined on the same…

Q: Which univariate graph for frequency would be reasonable to use to depict continuous data? Histogram…

A: Histogram is a graphical representation to display continuous data. In histogram, there is no gap…

Q: Several months ago while shopping, I was interviewed to see whether or not I'd be interested in…

A: Claim : the proportion of mall shoppers in my market category who would buy a subscription is less…

Q: Given the following, find the requested probability. Event B Event B Event A 21 P(B)-? (round to 4…

A: From the given table P(B)=?

Q: from

A: Under this given problem we have two robot companies "A and B" we have to test if both the robots…

Q: Use the t-distribution table to find the critical value(s) for the indicated alternative hypotheses,…

A: Assume that population variances are equal. The level of significance is 0.01. This is a two-tailed…

Q: A box contains 6 blue balls and 4 red balls. Two balls are drawn from the box, one after the other,…

A: Given info:A box contains 6 blue balls and 4 red balls. Two balls are drawn from the box, one after…

Q: a. b. Find the best point estimate of the population mean. Construct and interpret the 85%…

A: here given ,  sample size  = n= 20  sample mean = $48.60 sample standard deviation  = $3.53  here…

Q: Using multiple linear regression, estimate the value of c in the given regression model. Use 4…

A: Given data: x 1 2 3 4 y 3.6 5.2 6.8 8.8

Q: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1390…

A: Given:   MEN WOMEN x 417 230 n 1390 745 proportion,p^=x/n p̂1 = x1/n1=417/1390=0.3000…

Q: The value obtained for the test statistic, z, in a one-mean z-test is given. Whether the test is two…

A: a)GivenTest is left tailed testTest statistic(z)=-1.78

Q: 19% adults favor the use of unmanned drones by police agencies. Twelve U.S. adults are randomly…

A: Consider X denotes adults favor the use of unmanned drones by police agencies which follows binomial…

Q: The accompanying table shows the numbers of male and female students in a particular country who…

A: Given data is   Business degrees Nonbusiness degrees Total Male 192724 624626 817350 Female…

Q: Square footage of homes are normally distributed with a mean of 1,200 square feet and a standard…

A: Square footage of homes are normally distributed with a mean of 1,200 square feet and a standard…

Q: Select all that apply. One way independent ANOVA may be used as a substitute for the independent t-…

A: One way anova : One way analysis of variance, We have to choose correct options for one way anova.

Q: Find the indicated area under the standard normal curve.   Between z=−0.38 and z= 0.38

A: Objective: To find the area between z=−0.38 and z= 0.38.

Q: 2. If X-N(u-3, o²-2). Find the distribution of the following: c. V= 2-4X 5

A: Given distribution is normal distribution X~N(μ=3,σ2=2)

Q: In a random sample of 500 items where 90 were found to be​ defective, the null hypothesis that 15​%…

A: Given Information: Sample size n=500 Null Hypothesis H0:π=0.15 Alternative Hypothesis H1:π≠0.15…

Q: Claim: The standard deviation of pulse rates of adult males is more than 12 bpm. For a random sample…

A: Given data σ=12n=172s=11.5

Q: IQ scores are normally distributed with a mean of 100 and standard deviation of 15. What is the…

A: GivenMean(μ)=100standard deviation(σ)=15

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A: According to the given information in this question  There are more than three subparts according to…

Q: If x represents a random variable with mean 131 and standard deviation 40, then the standard…

A: Given that ; u = 131  ? = 40 Sample size ( n) = 100 Here we use the concept of standard normal…

Q: Conduct the hypothesis test and provide the test statistic and the critical value, and state the…

A: Given  Total no of checks = 100. Significance level=0.1 We need to find the test statistic, critical…

Q: ple of size 12=31 has sample mean = 53 and sample standard deviation 5 = 8.1. t: 0/2 1 of 2…

A:

Q: You work for the U.S. Food and Drug Administration. You have gotten word that a drug manufacturing…

A: Solution: n= 20 Sample size  x =∑xn=702420=351.2 Sample mean s=∑(x-x)2n-1s= 5.7820 Sample standard…

Q: 2. On a standardized test, Sara had a score of 81, which was exactly 2 standard deviations below the…

A: Given : Test score = X = 81 Standard deviation = σ = 3

Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…

A: Consider the marginal totals computed as shown below:   A B C D Total Order Accurate 314 263…

Q: A student wishes to see if at her school the proportion of underclassmen who do not have have a job…

A: Given,n1=257 , x1=55n2=288  ,  x2=45p^1=x1n1p^1=55257=0.21401p^2=x2n2p^2=45288=0.15625pooled…

Q: If, in a sample of n = 20 selected from a normal population, X= 53 and S = 12, what are the critical…

A: Solution-: Given: X¯=53,μ0=50,n=20,s=12,α=0.01 Here, σ - is unknown so we use t-test We want to find…

Q: A researcher is studying two types of medication that both treat hives. 18 out of the random sample…

A: Given data: Significance level = 0.05 Claim: Test to see if the proportion of people who still had…

Q: Class 61-64 65 67 68 69 70 Class Midpoint 63.0 66.5 69.0 70.5 71-72 72.0 73-76 75.0 77-80 79.0…

A: Given data setclass             class midpoint61-64                6365-67                66.568-69…

Q: Suppose a student is selected at random from 100 students where 30 are taking ME, 20 are taking EE,…

A:

Q: An engineer is determining if the bolts she designed are being manufactured with accurate…

A: The sample mean is 42 mm and the standard deviation is 2 mm.

Q: A senior accounting major at Midsouth State University has job offers from four CPA firms. To…

A: Hypotheses: Null hypothesis: there is no difference in the mean number of months before receiving a…

Q: Methadone is a synthetic drug whose effect on the body is similar to that of morphine and heroin.…

A: From the given histogram, Class range frequency 0-50 6 50-100 12 100-150 10 150-200 6…

Q: A custodian wishes to compare two competing floor waxes to decide which one is best. He believes…

A: Formula : Test statistic

Q: Out of 6000 graduates in a town 600 are females out of 1200 graduate employ 100 are females. Use x…

A: Given that: Total number of graduates/ frequency, n = 6000 Total number of females = 600 Total…

Q: A factorial experiment involving two levels of factor A and three levels of factor B resulted in the…

A:

Q: The Random Variable X counts the number of students who passed a test in a class of 18 students. If…

A: Solution-: Given: n=18,p=0.457 We want to find P(X=2)=?