Finish times (to the nearest hour) for 57 dogsled teams are shown below. Use Categorize the basic distribution shape as uniform, mound-shaped symmetric, bimodal, skewed lef or skewed right. 261 271 236 244 279 296 284 299 288 288 247 256 338 360 341 333 261 266 287 296 313 311 307 307 " 279 283 277 283 285 281 278 276 328 261 288 289 297 331 275 279 281 328 298 303 304 305 315 313 Don 1 201 207 250 311

Q: 39/ iF X is a random Variable has poisson distribution with 2=4 Find P(X=3)

A: From the provided information, X is a random variable has Poisson distribution with λ = 4

Q: 3) The finished inside diameter of a Piston ring is normally distributed with a mean of 10…

A: The finished inside diameter of a piston ring is normally distributed with a mean of 10 centimeter…

Q: 4. Individuals of various age groups (18-35; 36-55; 56-75) were asked about their trust (measured on…

A: The question is about ANOVA Given : Sample size of age grp. 18-35 ( n1 ) = 22 Mean trust of age grp.…

Q: the answer was incorrect

A: Answer…

Q: Q24 Consider the density function Find kx-³, x>2 otherwise f(x) = {kx-³, a) the value of k b) E(X)…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

Q: The following results come from two independent random samples taken of two populations. Sample 1 n₁…

A: n1=40, x¯1=13.2, σ1=2.4n2=35, x¯2=11.4, σ2=3.3

Q: random sample of exam scores. The sample has a mean of 488 and a standard deviation of 73. For each…

A: Given that  Sample mean=488 Standard deviation =73 Population mean μ =478

Q: Researches are interested in whether or not the average fuel economy for compact cars is the same as…

A: Compact cars: Sample size n1=36 Sample mean x¯=38 Sample variance s12=25 Sample standard deviation…

Q: Suppose the random variable X is the number of tails until a head comes up in the experiment of…

A:

Q: 2. Let x = (₁,...,xn) be a random sample from the Gamma(2, 0) distribution, with probability density…

A:

Q: I only need the test statistic and the degrees of freedom, since the asnwers above are all…

A: For the existing question, we need to find the correct test statistic and degrees of freedom.

Q: 269 Weekly Monthly 274 Couple times a year 143 Don't track 52 274 969; 0.283 231 969: 0.238 969;…

A: 1) Total number of adults =969 Number of weekly response=269 NOTE:- According to bartleby guidelines…

Q: 6. The disturbance term in a regression model yt = a + Bxt + ut, captures: a) Some determinants of…

A: Sometimes, the response variable, i.e. Y, depends not only on the explanatory variable that we have…

Q: what percent of values fall between 5.25 and 8.75 if the mean =9 and standard deviation =2.36

A: Answer: From the given data, Mean (μ) = 9 Standard deviation (σ) = 2.36 X follows normal…

Q: 6. Find the range of spread and the population standard deviation of the following data: 3, 0, 4, 1,…

A: Given raw scores data can be expressed in a frequency table as shown below: xi fi 0 1 1 4 2…

Q: Find the variance and standard deviation of the data below: Classes 1-10 11-20 21-30 31-40 41-50…

A: The question is about frequency distribution Given :   To find : 1 ) Variance of the data 2 ) Std.…

Q: A researcher wishes to estimate, with 92% confidence, the population proportion of families who eat…

A: Population proportion p=18%=0.18 Margin of error =E =0.07

Q: You wish to test the following claim (Ha) at a significance level of a = Ho: :μ = 90.8 Ha : μ + 90.8…

A: Hypothesis Test: Hypothesis testing can is a statistical tool that is used to identify if the…

Q: Scenario: Is there a relationship between mood (X) and outside temperature? A researcher quantified…

A: A researcher quantified mood (X) by having participants rate themselves each day as being in a…

Q: A group of teenagers is chosen randomly and asked which of three indoor activities they preferred.…

A: Given information: n=126 total observation  k= 3 categories

Q: An insurance company collects data on seat-belt use among drivers in a country. Of 1100 drivers…

A: Answer:-  Given, Sample size (30-39), n1 = 1100 Sample proportion (30-39), p1 = 0.25 Sample size (55…

Q: In a test of a sex-selection technique, results consisted of 205 female babies and 226 male babies.…

A: Answer:- Given, Number of female babies, n(F) = 205  Number of male babies, n(M) = 226 Total number…

Q: You determined there was a positive correlation between the number of study hours a week a student…

A: Given,  Regression equation is:-                Y^=1.679 X +49 Here, X is the number of hours a…

Q: The data below are the final exam scores of 10 randomly selected statistics students and the number…

A: As per our guidelines we can solve first multiple-choice question and rest can be reposted. Q.1…

Q: Q.23 Consider a drug that is used to help prevent blood clots in certain patients. In clinical…

A: Sample size, n=5991 No. of patients with adverse reaction of nausea, x=153 α=0.01

Q: Is the variance for the amount of money, in dollars, that shoppers spend on Saturdays at the mall…

A: Saturday Sunday 75 44 18 58 150 61 94 19 62 99 73 60 62 89 0 137 124 82 50 39…

Q: In 2010, shortly before a country's midterm elections, people in that country were dissatisfied with…

A:

Q: standard error for n = 123, π = 0.47 (Round your answers to 4 decimal places.)

A: n = 123  π = 0.47

Q: 6.4. Consider the Markov chain which at each transition either goes up 1 with probability p or down…

A: The problem deals with a Markov chain where, at each transition, there are two possible outcomes:…

Q: no prefer this particula next whole number. brand of pain killer is 2 percen

A: The given data is n = 400x = 8599% ci for pE = 0.02n = ?

Q: Given below are the monthly values of the S&P 500 Index. Suppose that in each month you had written…

A: End of month S&P 500 September-77 96.53 October-77 92.34 November-77 94.83 December-77…

Q: 31% of all college students major in STEM (Science, Technology, Engineering, and Math). If 44…

A: Given ,  The probability that the college students major in the STEM (Science, Technology,…

Q: The Service Corps of Retired Executives collected the data below to see if their small business…

A: given information   type of contact   face to face online telephone total before Katrina 729…

Q: treatment group to be the first sample. Identify the values of n₁, P₁, 9₁, ₂, P2, 92, P. and 9.

A: Let p1 and p2 be the population proportions of children who developed disease for the treatment…

Q: 4. A college wants to investigate whether students perform better on mornings that they have had a…

A: Sample size, n=100 Sample mean of difference, d¯=4.5 Sample sd of difference, sd=3.6 CL=0.95

Q: The overnight shipping business has skyrocketed in the last ten years. The single greatest predictor…

A: Total Number of customers =700 Event =A= >5 permonth Event =B=medium

Q: In a randomized double-blind, placebo-controlled trial of children, an herb was tested as a…

A: It is assumed that μ1, μ2 are the population mean number of days with fever, for population 1 and 2…

Q: a.) How do you define the maximum credibility of the parameter theta estimate if the credibility…

A: a)- The maximum credibility of the parameter theta estimate is defined as the value of theta that…

Q: Compute most appropriate measure of centeral tendency and dipe

A: Consider the data values for the variable "Albumin level". Albumin (g/dl) 3.5 4 4.2 4.8…

Q: In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed to…

A: It is given that- Total number of surveyed persons: n=6980 Number of surveys returned : x=1306 Level…

Q: Use the linear correlation coefficient given to determine the coefficient of determination, r². r =…

A: r=-0.8426

Q: Given X; ~ B (10, 0.4) and these are random drawings from some population. The mean and variance of…

A: The random variables are Xi's. Xi ~ B10, 0.4 B stands for the Binomial distribution. The sample size…

Q: A Survey of 1000 adults in a small town gave the following data: Employed Unemployed Total 500 50…

A: Total adult=1000

Q: Researchers want to know about the true proportion of adults with at least a high school education.…

A: The no. of sample size, i.e., the sampled no. of adults, n=1000. The no. of sampled adults, who have…

Q: 3. You are in charge of a delivery company that has a large fleet of delivery truck. The distance a…

A: The sample size is 36, the sample mean is 55 and the sample variance is 49.

Q: The following data represent salaries, in thousands of dollars, for employees of a small company.…

A: The question is about detection of outliers Given :   To find : Does the last data value appea. to…

Q: Suppose you have been hired by a political consulting firm. Your task is to use data to predict…

A: That is, there is no evidence to conclude that the population proportion of votes cast is more than…

Q: You wish to test the following claim (a) at a significance level of a = 0.005. Ho : μ = 57.9…

A: Given M=53.2, n=26, SD=10.9HypothesesH0: μ=57.9Ha :μ≠57.9Significance level α=0.005

Q: Large samples of women and men are obtained, and the hemoglobin level is measured in each subject.…

A: The question is about confidence interval Given : CI : -1.76 < μ1 - μ2 < -1.62 Popl. 1 :…

Q: Using the data from the graph below and the fact that the average seasonal factor for quarter 1 is…

A: The additive decomposition model of the forecasting is given as: Yt=Tt+St+Et, where,  Tt=Trend…