The average number of kilos of meat a person consumes in a year is 91 kilos. Assume that the standard deviation is 8 kilos and the distribution is approximately normal. If a sample of 40 individuals is selected, find the probability that the mean of the sample will be 90 kilos or greater per year.  Express your answer in percent form with 2 decimal places (with percent symbol - e.g. 10.00%)

Q: The distribution of the lengths of a commercially caught fish is bell-shaped with mean 24 cm and…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: 3 Calculate the Standand deviationA 25 vand to hundredths. 16/719

A: Concept : The standard deviation of a data is σ = 1N∑i=1i=Nxi-μ2    where xi is given data and N is…

Q: 6. For the graph at the right, put the mean for each distributions A, B and C in order smallest to…

A: The graph shown in the picture is Bell shaped Symmetrical Unimodal which are the properties of…

Q: Answer D,E,F only. Thank you.

A: Box plot was used to measure the outlier in the data set. It is the graph that contain quartile…

Q: Use the body temperatures, in degrees Fahrenheit, listed in the accompanying table. The range of the…

A:

Q: Let X = (5400 4900 6300 6700 )T be the estimates in dollars for the cost of replacing a roof on…

A: Given:                  X=5400, 4900, 6300, 6700 A sample mean refers to the average of a set of…

Q: A wildlife study is designed to find the mean weight of salmon caught by an Alaskan fishing company.…

A:

Q: Calculate the relative error or precision of the mean. A. 1: 100,000 B. 1: 300,000 C. 1: 200,000 D.…

A: Given, DISTANCE NO. OF MEASUREMENTS 740.53 4 740.59 3 740.57 6 740.53 7 We have to…

Q: Calculate the probable error of the mean. A. +0.0247 B. +0.0055 C. +0.0167 D. +0.0037

A: To find the probable error of the mean ,firstly we find most probable value of measurement then we…

Q: The area of the shaded region is

A: Consider X denotes the IQ score. X~Nμ=100,σ=15

Q: Calculate the sample standard deviation for this data set: 65, 48, 70. The formula for the sample…

A:

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: Suppose the random variable z defines the thermometer reading.

Q: Find the standard deviation for the population data set. You must clearly show your work with…

A: Given data 2, 5, 9, 11, 13 Mean,  x = ∑i xin= 2+5+9+11+135 = 8 xi (xi-x¯) (xi-x¯)2 2 -6 36 5…

Q: The measure of dispersion which shows the variation about the mean is O a. Standard deviation O b.…

A: It is an important part of statistics. It is widely used.

Q: I. For the following set of scores: 5 8 5 7 6 6 5 7 4 6 6 9 5 5 4 6 7 5 7 5 a. Place the scores in a…

A:

Q: The correlation between a serials fiber and potassium contents is r = 0.898. What fraction of the…

A: Given that  r = 0.898

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: normal distribution μ = 100σ = 15 P(85<x<110) = ?

Q: Today, the waves are crashing onto the beach every 4.6 seconds. The times from when a person arrives…

A: The mean of this distribution is  a midpoint between the ends.  Mean = (4.6 + 0)/2 = 2.3 seconds

Q: Use the normal distribution of IQ scores, which has a mean of 110 and a standard deviation of 14,…

A: The mean is 110 and the standard deviation is 14.

Q: High temperatures in izmir for the month of July follow a Uniform distribution over the interval…

A: Given: X~Uniform a=72 b=102

Q: se the normal distribution of fish lengths for which the mean is 8 inches and the standard deviation…

A: Given,μ=8σ=2P(X>10)=?

Q: In a data set with a range of 55.4 to 105.4 and 400 observations, there are 276 observations with…

A: A dataset ranges from 55.4 to 105.4.Number of observations is 400.About 276 observations are less…

Q: The average family spends $112 at the grocery store each week with a standard deviation of $35.…

A: Step 1:We have given that :mean(μ)=$112satndard dwviation(σ)=$35X is the amount spent by the…

Q: Use either your graphing calculator or Table A.2. Round to 4 decimal places if necessary. The birth…

A: Given: Population mean μ=7.46 Population standard deviation σ=1.8 Consider X be the random variable…

Q: Find the proportion of Normally distributed observations with a zz-score below 3.48. Give your…

A: Let Z be the random variable from standard normal distribution with mean (μ) = 0 standard deviation…

Q: 3. The amount dispensed by the coffee machine follow the normal distribution with a mean of 5,286…

A:

Q: The weight of a chocolate bar produced by a comparny is 70 gr with a standard deviation of 7 gr. The…

A: Let x be the weight of a chocolate bar which follows normal distribution with mean 70 gr, and…

Q: Use the frequency distribution to construct a histogram. Does the histogram appear to depict data…

A: Use the frequency distribution to construct a histogram. Weight (g) Frequency 6.000-6.049 3…

Q: d the mean, variance and standard deviation of the following data: X 19 20 21 22 23 P(X) 0.2 0.2 0.3…

A: From the given information we find the solution.

Q: ENGINEERING STUDENTS HAVE THE FF. HEIGHTS (IN FT) 5.8 5.9 8.2 4.8 4.9 5.11 5.9 4.11 5.6

A: Given that data  5.2,5.8,5.9,6.2,4.8,4.9,5.11,5.9,4.11,5.6 Sample size n =10

Q: Calculus I scores at College A have mean 70.21 and standard deviation 15.32; Calculus I scores at…

A: Calculus I scores at College A have mean 70.21 and standard deviation 15.32;Calculus I scores at…

Q: The final exam is worth 200 points with the usual 10% grading scale. Assume that the final exam…

A: A ten-point range grading scale (in general) A = 180-200 B = 179 - 160 C = 159 - 140 D = 139 - 120 F…

Q: A student takes a multiple-choice test that has 6 questions. Each question has four choices. student…

A: It is given that,  A student takes a multiple-choice test that has 6 questions i.e. n=6 Each…

Q: You randomly select and weigh 12 samples of an allergy medicine. Assume the weights are normally…

A: Given that n =12, t0.99 = ?

Q: find the 95% c.I for the mean selling price of 1300 sq ft condos remember n=5 , b0=-32.7, b1=7.5 ,,…

A: To find the 95% confidence interval (CI) for the mean selling price of 1300 sq ft condos, we can use…

Q: Use the normal distribution of fish lengths for which the mean is 8 inches and the standard…

A:

Q: The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates.…

A:

Q: Assume a mean of 105 papers and a standard deviation of 15 papers. Pays 40¢ for each paper, paper…

A: Given information: μ=105σ=15Cost price for paper=40 centsSelling price for paper=90 cents

Q: The average driver spends $54 at the gas station each week with a standard deviation of $8. Assuming…

A:

Q: Calculate the standard error of the mean. A.+0.0167 C. +0.0347 B. +0.0247 D. +0.0055

A: We have given that following table Distance (X) Number of measurements (f) 740.53 4 740.59 3…