Illustrate the probability histogram of the sampling distribution ofthe means. There are total of 150 track and field athletes at the oval who can finish the 1 lap with anaverage time of 15 minutes, with a standard deviation of 6 minutes. If 56 athletes are chosen at arandom, wh

Q: What is the probability that a first grade classroom of 20 students who are chosen randomly from the…

A: Given Information: Mean μ=100 Standard deviation σ=15 Sample size n=20

Q: If the mean body tempe tire of a bird is 75 degrees with a standard deviation of 4 degrees, which is…

A: Given information- Population mean, μ = 75 degrees Population standard deviation, σ = 4 degrees Let…

Q: 6. The size of fish is very important to commercial fishing. A study conducted in 2012 found the…

A: From the provided information, Mean (µ) = 42.1 cm Standard deviation (σ) = 2.98 cm X~N (42.1, 2.98)…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: From the provided information,Mean (µ) = 162000Standard deviation (σ) = 36000Sample size (n) = 58

Q: The amount of time students study for a test is normally distributed with a mean of 3 hours and a…

A: Mean=μ=3Standard.deviation=σ=1.8Samplesize=n=30

Q: The SAT math scores of a particular high school in New Jersey are approximately normally…

A: From the empirical rule we know that 95% of the observations falls in (µ-2σ,µ+2σ)  Where µ is the…

Q: ii, 20 coins are flipped each with a probability of 0.5 that it will be heads. What is the standard…

A:

Q: A farmer from Louisiana produces organic eggs. From previous observations, we know that the…

A: Given,Mean, grams Standard deviation, σ = 13 grams Sample size, n = 80According to central limit…

Q: The operation manager at a tire manufacturing company believes the mean mileage of a tire is

A:

Q: The National Health and Nutrition Examination Survey (NHANES) reported that in a recent year, the…

A:

Q: The standard deviation of the scores on a skill evaluation test is 354 points with a mean of 1458…

A: Given that  Mean = 1458 , Standard deviation = 354 , Sample size = 313

Q: a division wide aptitude test in mathematics was conducted to 1000 students. the mean of the test is…

A: Given : No. of students : Sample size (n) = 1000 Let X : Scores in aptitude test in mathematics…

Q: According to the Department of Education, 60% of college students enjoy taking Statistics. Suppose…

A: Let  X be the number of students who enjoy taking Statistics in a sample of 200. Given n = 200…

Q: Would it be unusual for a data value to be more extreme than 4.76 standard deviations from the mean?…

A: In a normal distribution, data values that lie more than 4.76 standard deviations from the mean are…

Q: Scores for a standardized test are normally distributed with a mean of 1200 and a standard…

A: given data μ = 1200σ = 60 normal distributionn = 64P(1200<x¯<1214) = ?

Q: The distribution of scores for the third exam in a statistics course has a mean of 74 and a standard…

A: Given Information: Mean, μ=74 Standard Deviation, σ=15 Sample Size, n=36

Q: The amount a household spends on groceries per week is normally distributed with a mean of $250 and…

A: given data, normal distributionμ=250σ=45n=121probability the sample mean spent on groceries per week…

Q: The sample of five companies in the aerospace industry was surveyed as to their return on investment…

A: We have to find sample variance s2  and sample standard deviation...

Q: The National Health and Nutrition Examination Survey (NHANES) reported that in a recent year, the…

A: Given information Mean (µ) = 202 Standard Deviation (σ) = 42 Sample size (n) = 49   Z score is given…

Q: The sample standard deviation is one measure that describes the value in the sample that the data…

A: A single number that seeks to represent a set of data by identifying the center position within that…

Q: The mean height of male college students in a large city is 68 inches and the standard deviation is…

A: Solution

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

Q: On the Gulf Freeway at 7:00 AM, the average travel time from Beltway 8 to Downtown is 29.5 minutes…

A: We have given that the random variable X i.e. travel time is normally distributed with average(mean)…

Q: the distribution of heart rates for women ages 20-39 is approximately normal with a mean of 73 beats…

A: The mean is 73 and the standard deviation is 15.9.

Q: The operation manager at a tire manufacturing company believes that the mean mileage of a tire is…

A: The sampling distribution of sample mean follows the normal distribution, if the population is…

Q: High school girls average 80 text messages daily. Assume the population standard deviation is 15…

A: Given information:

Q: The scores on a test are normally distributed with an average (mean) of 72 and a standard  deviation…

A: As per our guidelines we are suppose to answer only three sub parts . Mean(μ)=72Standard…

Q: The mean of a test is 400 and the standard deviation is 75. It is normally distributed. A sample of…

A: 1] Mean μ=400 2] standard deviation σ=75 3] n=25 4] μx¯=400σx¯=σn=7525=15

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: d the probability that a score is from 185 to 210. d the probability that a score is from 160 to…

A: As per your request I have solve only (d) option Given Mean =201 Standard deviations=21

Q: students has an average of 300 dollars and a standard deviation of 1,000. Suppose that we take a…

A: It is given that the random variable X i.e, the amount of money in savings accounts follow normal…

Q: A newly-hired school registrar in a Science High School would like to determine the overall…

A:

Q: The National Health and Nutrition Examination Survey (NHANES) reported that in a recent year, the…

A: Solution: Let X be the cholesterol level. From the given information, µ=202 and σ=42.

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 88 inches and a…

A: Given,Mean μ = 88Standard deviation σ = 0.6

Q: amount of money an American spends on Holiday presents is normally distributed with a mean of $650…

A: given data, normal distributionμ=$650σ=$80probability that a randomly selected American spends less…

Q: A soft drink machine outputs a mean of 26 ounces per cup. The machine's output is normally…

A: From the provided information,

Q: The body temperatures of all mosquitoes in a county have a mean of 57∘F and a standard deviation of…

A:

Q: The amount of money an American spends on Holiday presents is normally distributed with a mean of…

A: Given Mean=650 Standard deviations=80

Q: The sizes of houses in Kenton County are normally distributed with a mean of 1369 square feet with a…

A: From the given information, the mean and standard deviation are 1,369 and 171.

Q: Suppose an iPod has 3,000 songs. The histogram below shows the distribution of the lengths of these…

A: We have to find given probability....

Q: The ACT math scores of a particular high school in New Jersey are approximately normally…

A: Given data, σ=100P(200<X<800)=0.997By using emperical formula99.7% of data lies within μ-3σ…

Q: A racing car consumes a mean of 103 gallons of gas per race with a standard deviation of 6 gallons.…

A: