The number of cars that arrive at an inspection station within a time period of one hour follows a Poison distribution with hourly rate/expectation 2 = 5. Further, the time à car waits at the inspection station once it arrives before moving on (finishes inspection) follows an exponential distribution with parameter 0 = 3 minutes. What is the probability that more than 5 cars arrive in a 1 hour period?

Q: Which of the following best describes the Pearson correlation for these data? a. Positive…

A: The correlation is a measure of association between the variables. It is used to measure the…

Q: K A national survey asked people, "How often do you eat out for dinner, instead of at home?" The…

A: Given frequency distribution is:

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A: given data  normal distribution μ= 1000σ = 100P(x>875) = ?

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

A: The population mean is $1.820

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A:

Q: second quartile, and 75% are less than or equal to the third quartile. (b) Check the data set for…

A: It is given that  Q1 = -0.0200 Q3 = 0.0950         ( From the part a )

Q: K The following data represent the pulse rates (beats per minute) of nine students enrolled in a…

A: Population mean = sum(x)/n

Q: About 20% of babies born with a certain ailment recover fully. A hospital is caring for seven babies…

A:

Q: Find the 25th percentile weight for a pumpkin where the mean weight is 12 lbs with a standard…

A: given data,Pumpkinweight  follows normal distribution,μ=12σ=2.4we have to find out the 25th…

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A: It is given that  For sample 1: Favourable cases, X1 = 48 Sample size, n1 = 258 For sample 2:…

Q: Assume that you want to construct a​ 95% confidence interval estimate of a population mean. Find an…

A:

Q: Imagine you are the manager of a non-profit business, and you are looking to hire a recent college…

A: Chi-square Goodness of Fit test The Chi-square goodness of fit test is a statistical thesis test…

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A: The formula to calculate Z-test statistic (Zstat ) for proportion is given by, Where,  p̂ = sample…

Q: Coffee: The National Coffee Association reported that 62% of U.S. adults drink coffee daily. A…

A: From the provided information, 62% of U.S. adults drink coffee daily that is (p) = 0.62 Sample size…

Q: 2) You deposit $100 every month in an account paying 1% annual rate compounded monthly. How much…

A: Every month = $100 Rate = 1%  ( compounded monthly) Money after 10 years=?   Formula :  Future value…

Q: People who diet can expect to lose an average of 3kg in a month. In a book, the authors claim that…

A: Method: t test statistic are used , because population standard deviation is not known.

Q: (a) State the null hypothesis Ho and the alternative hypothesis H₁. Ho :D H₁₂ : 0 (b) Determine the…

A: It is given that  n1 = 414,    X1 = 191 n2 = 557,    X2 = 213   Note: According to Bartleby expert…

Q: It is believed that the depth of a river is 15m and the SD = 1.6m An engineer believes that is too…

A: Given information Sample mean x̅ = 15.8 m Population mean µ = 15 m Sample size n = 33 Standard…

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A: Given that,  The random variable x represents the number of cars per household in town of 1000…

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A: Given information: four levels of factor A (school) and six levels of factor B (curriculum design).…

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A: The data shows the exam scores for students randomly assigned to the sections meeting on these days…

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A:

Q: hat is the probability that the sample mean lifetime is less than 1540 hours?

A: It is given that the mean is 1500 and the standard deviation is 70.

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A: We have given that Significance level (α) = 0.10

Q: What would the null and alternative hypotheses be for the average experience (in seasons) for an NBA…

A: Solution: The hypothesis can be classified into types 1) Null hypothesis   and 2) Alternative…

Q: Q2) EXAMPLE WIT RMAL RANDUM VARIABLE: turn in the printout Suppose the random variable "height" has…

A: Given that μ=67 and σ2=14, σ=14=3.7417 Sample size, n=10: R code: Sample mean for n=10 is 66.02215…

Q: 4 Harris Interactive asked samples of adults (age 18 and over) in various countries, "How important…

A: Given information:   U.S. China India Britain France Germany Spain Italy Very important 4 19 23…

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A: Note:: according to the Bartleby guidelines expert solve only one question and maximum three subpart…

Q: Find the t –value for n = 20 and  alfa = 0.5 % in one tail.

A: The degrees of freedom is, df=n-1    =20-1    =19

Q: Find P(5) when p = 0.90. P(5)= (Round to five decimal places as needed.)

A:

Q: A study of more than 3,000 toco toucans found that their weights were approximately Normally…

A: It is given that  Mean, μ = 20 Standard deviation, σ = 2.3 Z-Score, Z = ( Y - μ )/σ

Q: Page 3 of 5 8. In order to create a 90% confidence interval estimating the population proportion of…

A: 8. The given estimate would be within 3.5% and confidence level is 90%.

Q: 10. A Gaussian RV X is N(0, o2-4). Find the conditional pdf: fxx>2(x); i.e., find the conditional…

A: X is a normal distribution with mean 0 and variance 4 X ~ N(0,σ2 =4) So,  Z = X-04=X2 ~ N(0,1) CDF…

Q: The following data represent the number of people aged 25 to 64 years covered by health insurance…

A: μ=44.90

Q: and 0.85? 6.5 The production employees at a garment factory have been surveyed several times to…

A: By Using the margin of error to calculate the required sample size

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A: It is given that from the Minitab output: Constant coefficient, y-intercept = 34.02 Semester…

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A: Given  Mean=35441, standard deviations=5100, n=60

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A: The data shows the response times in milliseconds.

Q: ↑ Each of the following three data sets represents the IQ scores of a random sample of adults. IQ…

A: The answer is attached below.

Q: Find the mean, variance, and standard deviation of the binomial distribution with the given values…

A: given data, n=90p=0.9we have to find out the mean , variance and standard deviation  of the mean

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A: Given Information: Hypothesized value of population mean is 124 Population standard deviation σ=8…

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A: Followings are the Explanation of the question 1) The percentage of voice sin the sample to win the…

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A:

Q: In Marissa's calculus course, attendance counts for 15% of the grade, quizzes count for 10% of the…

A: Given attendance counts for 15% of the grade, quizzes count for 10% of the grade, exams count for…

Q: One year Roger had the lowest ERA (earned-run average, mean number of runs yielded per nine innings…

A:

Q: What would the null and alternative hypotheses be for the average number of monthly visits/sessions…

A: It is given that Claim: The average number of monthly visits/sessions on the Internet by a person at…

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A: Given  X~N(183000, 36000) Sample mean x̄ ~N(183000,9295.1600) n=15

Q: The historical reports from two major networks showed that the mean number of commercials aired…

A: Method: if population standard deviations are unknown then we use t test .

Q: An article in a 2006 issue of Journal of Behavioral Decision Making reported on a study involving 47…

A: Solution: From the given information, there are 47 undergraduate students involved in a class at…

Q: (c) Find the value of the test statistic. (Round to three or more decimal places.) 2.368 (d) Find…

A: It is given that the test is two-tailed test. t = 2.368 n1 = n2 = 95