For a newly arrived consignment at Durban airport, what is the probability that a  randomly selected parcel will take: a. Between 45 and 51 minutes to deliver to the client? b. Less than 48 minutes to deliver?

Q: SAT Scores The national average SAT score (for verbal and math) is 1028. Assume a normal…

A: We have given that Mean(µ) = 1028Standard deviations (σ) = 92X ~ N (µ, σ )= N(1028, 92)

Q: 2. The VP for Academic Affairs of the University of Pangasinan wished to understand the distribution…

A: Here we’ve to test whether the data contradicts that the distribution of student population in the…

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A: Given: Sample meanx¯=5000Sample size(n)=179Standard deviationσ=1500

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A:

Q: Given a continuous random variable X, X-N(2, 2) means that X follows a normal distribution with a…

A: GivenA continuos random variable X,X~N(2,2)

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A:

Q: Complete the following statements. A) The cumulative enrolment is the ________ of the enrolment of…

A: Solution: Here, it is needed to fill the blanks.

Q: Complete the following statements. _____ of the A) The cumulative enrolment is the . enrolment of…

A: Here 4 statements are given with missing terms, we have find missing terms.

Q: According to flightstats.com, American Airlines flights from Dallas to Chicago are on time 80% of…

A: here p = American  Airlines flights from Dallas to Chicago are on time =0.80n=  24 flights are…

Q: b) A bag contains 10 cards, of which 2 are marked two, 1 is marked three, 4 are marked four and 3…

A: b) Given that Number of cards with number 2 is 2. Number of cards with number 3 is 1. Number of…

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A:

Q: A study of college football games shows that the number of holding penalties assessed has a mean of…

A: given dataμ=2.3σ=1.1n=40as per clt if n≥30so distribution will be approximately normal P(x≤2.45)=?

Q: Medicare Hospital Insurance The average yearly Medicare Hospital Insurance benefit per person was…

A: The mean is 4064 and the standard deviation is 460.

Q: If you randomly select a professional basketball player, what is the probability that the player's…

A: The objective is to determine the probability that a randomly selected player's average points per…

Q: The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the…

A: n=250, population mean μ=30, sample standard deviations s=5, sample mean x̄=30.45

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A: GIVEN DATA normal dustributionμ = 77σ = 15empirical rule: approximately 68-95-99.7% data fall within…

Q: Which of these is the proper APA format for a single-sample z test?   Question 38 options:   z(72)…

A: We need to find out the correct  APA format   for a single - sample z test .

Q: Assume that population mean is to be estimated from the sample described. Use the sample results to…

A: Givensample size(n)=36Mean(x)=64.4standard deviation(s)=6.5confidence level=95%

Q: Exercise 11. High School Dropout Rate The data show the high school dropout rate for students for…

A: The question is about time series analysis Given :   To find : Construct time series graph and…

Q: 1. Create a plot of a frequency distribution (also known as a histogram) of the number of eggs laid…

A: The frequency distribution table for the number of eggs laid in past breeding seasons is obtained as…

Q: ← If np 25 and nq 25, estimate P(more than 4) with n=11 and p=0.4 by using the normal distribution…

A:

Q: The weights for newborn babies is approximately normally distributed with a mean of 6.8 pounds and a…

A: GivenMean(μ)=6.8standard deviation(σ)=1.8

Q: The following table gives the U.S. national debt for selected years from 1900 to 2013. U.S. Debt ($…

A:

Q: EX -F A runner for team 1 can run a race in 56.8 seconds. Team 1 has running times with a mean of…

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Q: A simple random sample of size n=400 individuals who are currently employed is asked if they work at…

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Q: How many parts should be sampled in order to estimate the population mean to within ±0.1 millimeter…

A: Given, margin of error is 0.1 and standard deviation is 1.8. We will use margin of error to find…

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A: Given information: The table is given below, Concern Alaminos city Dagupan city San Carlos city…

Q: SAT Scores The national average SAT score (for verbal and math) is 1028. Assume a normal…

A: GIVEN DATA  normal distribution μ = 1028σ = 92

Q: According to recent passport data, the percentage of people in a particular country who have a…

A: We have given thatp = 0.45n = 45 Here we will use binomial distribution because probability of…

Q: The following table shows the Excel output of a multiple regression on the 1st week box office of…

A: Multiple regression usable to check the effect of different variables on a response variable. i.e.,…

Q: The overhead reach distances of adult females are normally distributed with a mean of 200 cm and a…

A:

Q: 5. A company has an inventory with a book value of $4,583,231, which includes 116 product lines and…

A: Probability Proportional-to-size sampling is also referred to as dollar-unit sampling. This is…

Q: QUESTION 19 Suppose that the length of stay at the emergency department is normally distributed with…

A: It is given that  Mean, μ = 5 Standard deviation, σ = 1.5 Z-Score, Z = ( X - μ )/σ

Q: Teachers' Salaries The average annual salary for all U.S. teachers is $47.750. Assume that the…

A: The mean is 47750 and standard deviation is 5680.

Q: The percentage of titanium in an alloy used in aerospace castings is measured in 51 randomly…

A: Givensample size(n)=51standard deviation(s)=0.34confidence level=95%

Q: Costs are rising for all kinds of medical care. The mean monthly rent at assisted living facilities…

A: Given that  Sample size n =120 Sample mean=3486 Using estimated standard deviation

Q: You roll a fair die six times. What is the probability that you roll at least one 5? A) 1 B) 0.665…

A: Note: Hi there! Thank you for posting the question. As there are several independent questions,…

Q: A random variable X takes values between 4 and 6 with a probability density function f(x) =…

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Q: ACADEMIA DE STUDII ECONOMICE DIN MOLDOVA Departamentul "Econometrie şi Statistică Economică" a. IV…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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A: Note- Since you have posted multiple questions, as per our guidelines we are supposed to answer only…

Q: Find the z value that corresponds to the given area in the figure below. Use The Standard Normal…

A: According to the given information, we have P-value = 0.8830 (Right tailed)

Q: QUESTION 12 According to a recent study, 10.8% of students aged 15-18 in UAE suffer from asthma.…

A: Gor questions 12  Let p be the probability of students aged 15-18 in UAE suffer from asthma. n be…

Q: According to the Federal Communications Commission, 70% of all U.S. households are using video…

A: Given,n=15p=0.7q=1-0.7=0.3A random variable X~Binomial(n=15 , p=0.7)P(X=x)=Cx(0.7)x(0.3)15-x       ;…

Q: recent survey found that 60% of all adults wear sunglasses for driving. In a random sample of 10…

A: GIVEN DATA P9wear sunglasses) = p = 0.60sample size(n) = 10x = no. pf people wear sunglassesP(x=X) =…

Q: The current mean age of the retirement in the US is age 65 years old, with a standard deviation of 7…

A: Given Mean=65 Standard deviations=7

Q: The Head of production at Amiba private limited needed to examine the key determinants of company…

A: Given: The Head of production at Amiba private limited needed to examine the key determinants of…

Q: Let X ∼ N(2, 9). Compute P(X ≥

A: Given that  X ∼ N(2, 9) X~N( μ , ?2) μ= 2    , ?=3   Z-score =( x - μ )/?

Q: According to one poll, 55% of households in a certain region had no landline and only had cell phone…

A: Given information- We have given a problem of the binomial distribution. We have given that one…

Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…

A: As per given picture I have to solve part (c) of the question  We have given that n = 357x = 169p̂ =…

Q: Question 3: Problem solving ( The following data is the depth in meters taken on a sample of 10…

A: Given,12, 25, 26, 26, 26, 30, 32, 34, 44, 45sample size(n)=10