A farm hatches chicken eggs in batches of 15 and there is a 3% infertile rate. Find the standard deviation for the number of infertile eggs per batch. 0.2 0.44 0.45 0.66 43.7

Q: Public health statistics indicate that 26% of  American adults smoke cigarettes. A random sample of…

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Q: The Pizza Place recorded the number of extra toppings added to each pizza. Compute the mean and…

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Q: Multiplying every score is a sample by a constant value will change the value of the standard…

A: Standard deviation is a measure of the amount of dispersion of a set of values. It is obtained by…

Q: The proportion of men who smoke cigarettes in the US is 0.23.  A researcher took a sample of 200 men…

A: Sampling Distribution of Proportion: Standard deviation of sampling distribution of sample…

Q: Florida has an average temperature of 80 degrees Fahrenheit with a standard deviation of 3.5…

A: # Given : average temperature of Florida is mu1=80 degrees and standard deviations sigma1=3.5…

Q: Brewed decaffeinated coffee contains some caffeine. VWe want to estimate the amount of caffeine in 8…

A: Obtain the 90% confidence interval for the population mean.   The 90% confidence interval for the…

Q: A. In a test of a lifelong brand of tires, a survey revealed that the mean life was 35,000 miles and…

A: Normal Distribution: A continuous random variable X is said to follow Normal distribution with…

Q: A company that manufactures tires produces a tire that has a average life span of 65,000 kilometers…

A: We have to find given probability.

Q: Q2: b) For a mean of 70 and a standard deviation of 8, find standardized score for a value of 80.…

A: Givenmean(μ)=70standard deviation(σ)=8x=80

Q: Find the mean, mode and standard deviation of the distribution.

A: Given: f(x)=1x2πe-12logx2      for x>0       =0  for  x<0

Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…

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Q: On a standardized exam, the scores are normally distributed with a mean of 300 and a standard…

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Q: A new extended-life light bulb has an average life of 750 hours, with a standard deviation of 50…

A: As per empirical rule approximately 68-95-99.74% data fall within 1-2and3sd of mean.

Q: There is an average of 4 accidents in a week on a major highway in the city. What is the standard…

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Q: In a recent study, the serum cholesterol levels in men were found to be normally distributed with a…

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Q: The length of a fully grown hibiscus plant has a mean 35cm. It is found that 5% of these plants are…

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: The standard deviation of a variable is 15. If a sample of 100 individuals is selected, what size is…

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Q: A police radar gun is used to measure the speeds of cars on a highway. The speeds of cars are…

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Q: A random sample of 49 shoppers showed that they spend an average of $23.45 per visit and the…

A: 1. Point estimate of the population mean is the sample mean.

Q: The height of adult men in the United States is normally distributed with a mean of 70 inches and a…

A: Z = -0.67 Mu = 70 S = 3

Q: Write the steps of calculating the population standard deviation.

A: Standard deviation: The standard deviation is based on how much each observation deviates from a…

Q: A midterm exam has a mean of 76.0 and a standard deviation of 8.0. If any student with a z-score of…

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Q: "The weights of 1,000 children, in average, is 64kg with standard deviation of 18kg. Suppose the…

A: Given that n=1000, mu =64 ,s.d =18 ,p(x<59 ) =?

Q: Births weights in Norway are normally distributed with a mean of 3570g and a standard deviation of…

A: If a random variable x has a distribution with mean µ and standard deviation σ, then the z-score is…

Q: The heights of women have a symmetric distribution with a mean of 63 inches and a standard deviation…

A: It is given that the heights of women follows a normal distribution with a mean 63 inches and a…

Q: An accountant is studying the attendance levels at the concerts of a touring rock band. She finds…

A: Let x¯ be the mean number of attendees at a performance in her study for 62 performances which…

Q: A pharmacologist measured the concentration of dopamine in the brains of several rats.The mean…

A: Mean = 1269 Standard deviation = 145

Q: (g) How many of these flights would you except to be on time? (h) What is the standard deviation?

A: The binomial distribution is a discrete probability distribution where the probability of x…

Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…

A: Measure of central tendency measures the central or average value of a dataset. Measured of…

Q: The birth weights of newborn elephants are Normally distributed with a mean of 160 pounds and a…

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Q: Seattle, Washington, averages m=34 inches of annual precipitation. Assuming that the distribution of…

A: From the provided information, Mean (µ) = 34 inches Standard deviation (σ) = 6.5 inches Let X be a…

Q: Residents of an apartment send emails to the landlord on average, every 4 minutes, the standard…

A: Resident Sending an email to landlord  Mean 4 Standard Deviation 12 The landlord spends time…

Q: A professor at a local university noted that the exam grades of her students were normally…

A: Given,mean(μ)=73standard deviation(σ)=11

Q: A nationwide survey showed that the average selling price for bookbags is $35 with a standard…

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Q: 1. A biologist found the wingspan of a group of monarch butterflies to be normally distributed, with…

A: Given: Mean= 52.2mm Standard deviation=2.3mm. We standard normal deviation.

Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…

A: The formula of the standard deviation is,

Q: "The weights of 1,000 children, in average, is 53kg with standard deviation of 11kg. Suppose the…

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Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…

A: To calculate the standard deviation of the given set of data 19, 22, 7, 10, 27 .

Q: The average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13,…

A:

Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…

A: Standard Deviation:- Standard Deviation is defined as the square root of the mean of the square of…

Q: A researcher was testing the number of pop corn kernels that popped out of a mini bag of 100 kernels…

A: Given a researcher was testing the number of pop corn kernels that popped out of a mini bag of 100…

Q: A popular restaurant chain advertises that it delivers orders within 30 minutes. Suppose the average…

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Q: On a construction site, the amount of dirt scooped by a forklift machine is normally distributed…

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Q: On the planet of Mercury, 4-year-olds average 3.2 hours a day unsupervised. Most of the unsupervised…

A: As per the guidelines, we are only allowed to solve three subparts. Please post the remaining…

Q: In a recent survey,80% of the community favored building a health center in their neighborhood.…

A: Obtain the standard deviation of the numbers favorite the health center.   The standard deviation of…

Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…

A: Explanation and solutions is given below....

Q: The mean of a distribution is 50 and the standard deviation is 6. Using the empirical rule, find the…

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Q: 6. The mean value of a 2005 Honda Accord is $8200, with a standard deviation of $1300: a. Give the…

A: Given data,Mean μ=8200sd σ=1300

Q: A local store has found the expected number of smooshed donuts per dozen is 0.6, with a standard…

A: Here Take  RANDOM variable X = Number of smooshed donuts

Q: Sixteen percent of the world's population is left-handed. A researcher claims that left-handed…

A: a) mean (p) = 0.16 , q = 1 - 0.16 = 0.84 , n =2100

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.