Please must be worked out in excel According to the Canadian Newspaper Association, the average daily circulation of The Globe and Mail based on 2012 figures is 302,190.  Suppose the standard deviation is 7,308.  Assume the paper's daily circulation is normally distributed.  a. On what percentage of days would it surpass a circulation of 315,000?

Q: The figure below illustrating chemical process concentration readings made every hour. The minimum…

A: Explanation:   From the time-series plot, it is clear that there is no specific pattern in the…

Q: The weights of a certain dog breed are approximately normally distributed with a mean of 51 pounds,…

A: The mean is 51 pounds and standard deviation is 6.1 pounds.

Q: 11. An analyst has timed a metal cutting operation for 50 cycles. The average per cycle was 10.40…

A: Given : The observed time=10.40 minutes. Standard deviation=1.20 minutes. Performing rate=125%…

Q: Solve the following. Show your complete solution. The average price of a kilogram of ham is ₱1,200.…

A: Given,sample size(n)=30mean(μ)=1200standard deviation(σ)=140

Q: Distribution of AIDS Deaths, by Age: 1982 Through 1995 305,843 Deaths Under 12 years 1% -60 years…

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A: The mean is 22 and the standard deviation is 2.2.

Q: A data set with an unknown distribution has mean ?=360 and standard deviation ?=20.  State Chebyshev…

A: Given , μ = 360 , σ = 20

Q: According to Chebyshev's Theorem, within how many standard deviations from the mean would you find…

A: From the provided information, Let within k standard deviations from the mean we find at least 47.5%…

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Q: In a particular city, 96.25% of the population earn less than $156000 per year. If the annual income…

A:

Q: knowing the mean will be within ±0.5 mm?

A:

Q: What percent of people would you expect to complete the form in less than 4.225 hours? % What…

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A:

Q: The internal revenue service reports that the mean federal income tax paid in the year 2010 was…

A: From the provided information, Mean (µ) = 8040 Standard deviation (σ) = 4600 X~N (8040, 4600) Sample…

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A:

Q: You want to know the percentage of financial services companies that earned revenue less than 8181…

A: The objective of this question is to find the percentage of financial services companies that earned…

Q: advertising company plans to market a product to low-income families. A study states that for a…

A: Given Mean=23664 Standard deviations=6442

Q: Consider the experiment of rolling a pair of dice. Suppose that we are interested in the sum of the…

A: The sample space of rolling a pair of dice is, Sample space…

Q: The mean age of a group as 100 persons was found to be 32-02. Later it was discovered that age 57…

A:

Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Molly scores at the 91st…

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Q: A meteorological office keeps records of the annual precipitation in different cities. For one city,…

A: The z score indicates how many standard deviations that a data points away from the mean. It can be…

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A:

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 268 days…

A: 1. Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: It is often quoted that in a normal distribution, 95% of the data lies 1.96 deviations either side…

A:

Q: The average annual precipitation in Vancouver, British Columbia is 1300 mm. Assuming that the…

A: The value of  μ=1300μ+σ=1530,   μ+σ=1070μ+2σ=1760, μ+2σ=840μ+3σ=1990, μ+3σ=610 a)  Annual…

Q: It is often quoted that in a normal distribution, 95% of the data lies 1.96 deviations either side…

A: Let X be the random variable   X~ Normal (0, 1)

Q: Suppose a government department would like to investigate the relationship between the cost of…

A: The data shows the a random sample of 10 homes heating cost and square footage.

Q: A race director is preparing for an upcoming marathon and estimates that the mean time to finish is…

A: Here, μ=308 and σ=54

Q: Report anything you noticed about the way the graphs were shaped, how they were different as the…

A: Considering the Reese’s Pieces candies manufactured by Hershey are 25 candies: Physical Sample:…

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Q: Which graph represents P81? Choose the correct graph below. O A. O B. The temperature for P81 is…

A: Let Z denote the readings on the thermometre. Given that Z follows N(0,1)

Q: What percent of people would you expect to complete the form in less than 2.9 hours? What percent of…

A: Let X be the number of hours to complete a 1040 tax form which follows normal distribution with mean…

Q: Suppose that prices of a gallon of milk at various stores in one town have a mean of $3.71 with a…

A: K = x  - μσ

Q: Solve and sketch the problem.  Suppose that the amount of time it takes the Bureau of Internal…

A:

Q: The Consumer Price Index is reported monthly by the U.S. Bureau of Labor Statistics. It reports the…

A: Consider the problem.The objective is to find the geometric mean annual increase in the CPI from…

Q: You want to know the percentage of utility companies that earned revenue greater than 94 million…

A: Given Mean(μ)=60standard deviation(σ)=15

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: Given : μ=100σ=15X~N(μ=100,σ2=(15)2)We want to find,P(X>128)=?

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.