11 minutes, standard error is 1.1 minutes and that commuting times are normally distributed. Identify

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A: Given,mean(μ)=95standard deviation(σ)=10

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A: Thank you for posting this question! Since this question contains multiple sub-parts, I will solve…

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A: Dear students as per guidelines we answer the first three subparts only when multiple different…

Q: Traveling between two campuses of a university in a city via shuttle bus takes, on average, 31…

A: P(X>30)=1-Pz<30-311045=1-P(z<-0.67)=1-0.2514=0.7486

Q: A recent survey reported that small businesses spend 20 hours a week marketing their business. A…

A: From the provided information, Sample size (n) = 83 Sample mean (x̄) = 19.1 Population standard…

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A: a) The test hypotheses are: Null hypothesis: H0: μ = 700 Alternative hypothesis: H1: μ < 700

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A: Solution: Let X be the number of yearly burglary attempts. From the given information, X follows…

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A: Obtain the shortest range of service times that includes 50% of all service calls.   The shortest…

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A: Given: n= 101.0 ,x̄= 31000.0 ,s= 5000.0 µ= 35000.0 ,significance level(∝)= 0.02Now here using…

Q: A local sports magazine reports the mean length of a baseball game to be 175.9 minutes with a…

A: Given, mean, μ= 175.9 minutes standard deviation,  = 27 minutes n = 30

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A: Introduction: Assume that the checkout times of the customers are independent of each other, between…

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A: State the hypotheses That is, there is no evidence that the population mean waiting time to check…

Q: n their website, a property management company states that the mean monthly rent for apartments on…

A: Given: Population meanμ=675Sample size(n)=20Sample standard deviation(s)=21

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A:

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Q: r feels that the mean hospital stay in 2002 should be less due to initiatives aimed at reducing…

A: We are given: μ=Population mean=7.1x¯=Sample mean=6.85s=Sample standard devitaion=7.01n=Sample…

Q: According to the Vivino website, suppose the mean price for a bottle of red wine that scores 4.0 or…

A: mu = 32.48 xbar = 30.15 s = 12 n = 61

Q: the standard error of the mean for a random sample of 49 tax returns is ________.

A: Given information Mean = $ 1,949 Standard deviation = $750 Sample size = 49

Q: In 2011, the national percent of low-income working families had an approximately normal…

A: Given that, In 2011, the national percent of low-income working families had an approximately normal…

Q: In 2011, the national percent of low-income working families had an approximately normal…

A: From the given information, it can be observed that the population mean, μ = 0.313, population…

Q: According to the Vivino website, suppose the mean price for a bottle of red wine that scores 4.0 or…

A: Given: Population mean μ = $32.48 Sample size n = 59 Sample mean X = $30.15 Sample standard…

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A: Level of significance, α=0.10

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A:

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A: Given values, n=100x¯=60s=55

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A: Hi! Thank you for the question As per the honour code, We’ll answer the first question since the…

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A: Denote μ as the population mean number of pedestrians passing the location per hour.   It is needed…

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A: Solution: Given information: n= 39 Sample size s = 2.8 Sample standard deviationμ= 4.2 Population…

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A:

Q: A marketing researcher wants to estimate the mean amount spent per year​ ($) on a web site by…

A: Assuming the samples are drawn from a normal population. Null Hypothesis(H0):μ= $51Alternate…

Q: In 2011, the national percent of low-income working families had an approximately normal…

A: The given information is as following: Population mean μ=31.3% Population standard deviation σ=6.2%…

Q: According to the Vivino website, suppose the mean price for a bottle of red wine that scores 4.0 or…

A: Given: μ=32.48n=64x¯=30.15s=12

Q: A microwave company claims that their microwaves can pop popcorn in under 2.25 minutes. After 134…

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A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: In 2011, the national percent of low-income working families had an approximately normal…

A: Given information- Population mean, μ = 0.313 Population standard deviation, σ = 0.062 Sample size,…

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A: Consider X as a random variable that follows the normal distribution with a mean 4302 and a standard…

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A:

Q: A marketing researcher wants to estimate the mean amount spent per year ($) on a web site by…

A: a, Hypothesis: The null and alternate hypotheses are below: H0: μ=52H1: μ≠52 The test statistic is…

Q: According to the Vivino website, suppose the mean price for a bottle of red wine that scores 4.0 or…

A: (a) Let μ denotes the population mean price in Providence for a bottle of red wine that scores 4.0…

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

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A: Null hypothesis: The population mean is 40.0 cm. Alternative hypothesis: The population mean is not…