A livestock company reports that the mean weight of a group of young steers is 1119 pounds with a standard deviation of 81 pounds. Based on the model N(1119,81) for the weights of steers, what percent of steers weigh a) over 900 pounds? b) under 1100 pounds? c) between 950 and 1000 pounds? a) % of steers have weights above 900 pounds. (Round to one decimal place as needed.)

Q: A major credit card company has determined that the amount its customers charge on their accounts is…

A: Solution: Let X be the customers charge on their accounts. From the given information, X follows…

Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…

A: Answer: Given that:   ‘x’ is Normally distributed with                 Mean  µ =29.15       standard…

Q: A livestock company reports that the mean weight of a group of young steers is 1135 pounds with a…

A: We have to find given probability.

Q: The average weekly income of 20,000 workers is 1680php with a standard deviation of 150php. Assuming…

A:

Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…

A: The constant k represents the number of standard deviations and which is greater than 1.   (a)…

Q: Calculate the standard deviation of the following data sets with the computationa formula. If…

A:

Q: Data collected by the highway patrol indicates that the average speed on a stretch of interstate is…

A:

Q: A group of 123 bunnies had a mean hopping distance of 48 inches and a standard deviation of 3.5…

A: To find the number of: a) Bunnies will hop between 41 and 44.5 inches b) Bunnies will hop between 48…

Q: The scores on a mathematics exam have a mean of 78 and a standard deviation of 8. Find the x-value…

A:

Q: average heigth is 163 cm, standart deviation is 10 cm. compute p(X>168 cm) ?

A: Given,μ=163σ=10P(X>168)=?

Q: A preliminary sample of holiday shoppers revealed that the standard deviation of the amount of money…

A: Given data,σ=82E=7z-value at 95% confidence is Zc=1.96n=?

Q: z-score of

A: Given that  Value (x) = 27 Mean (μ) = 24 Standard deviation (σ) = 2   We know that  Z=(x-μ)σ

Q: A real estate agency says that the mean home sales price in City A is the same as in City B. The…

A:

Q: A distance is measured as 27.3 inches and 15.6 inches with the standard deviation (error) of 0.16…

A: Given information- We have given the mean and the standard deviation. E(X) = 27.3 inches E(Y) = 15.6…

Q: The weights of all newborn babies are normally distributed with a mean of 8 pounds and a standard…

A:

Q: In a mango farm of 250 trees, the mean harvest is 96.5 kilos of fruit per tree with a standard…

A: Given,sample size(n)=250mean(μ)=96.5standard deviation(σ)=8.4

Q: The heights cleared by two athletes in a high jump event are recorded bellowed. Athlete X: 1.86 m,…

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

Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…

A: Given: Mean μ=$28.62 Standard deviation σ=$3.80   Chebyshev's Theorem: PX-μ<kσ≥1-1k2

Q: display of data to find the standar

A: Given,

Q: Suppose that the mean cranial capacity for men is 1070 cc (cubic centimeters) and that the standard…

A: We need to complete the given statements assuming that men's cranial capacities are normally…

Q: Fit a straight line to the following data and compute the standard deviation. x 0 0.5 1 1.5 2 2.5 3…

A: Given, X Y 0 3.076 0.5 2.81 1 2.588 1.5 2.297 2 1.981 2.5 1.912 3 1.653 3.5…

Q: Find a 95% CI on the population standard deviation of speeds of drivers ticketed in a 55 mph zone…

A: Confidence interval population standard deviation :  A confidence interval is an statistical…

Q: A livestock company reports that the mean weight of a group of young steers is 1153 pounds with a…

A: Normal distribution is generally denser in the center, and basically less denser at the tails. There…

Q: (a) Determine the standard deviation of recumbent length for all 20 observations. cm (Round to two…

A: here sample size n= 20 here given data recumbent length  xi  = recumbent length

Q: The mean length of a human pregnancy is 267 days, with a standard deviation of 12 days. Use the…

A: Given data,Mean μ=267sd σ=12P(243<X<291)=?

Q: A major credit card company has determined that the amount its customers charge on their accounts is…

A: Given that, Mean = 2800 Standard deviation = 200 Number of customers = 20000

Q: A normel curve with a mean of 400 and a standard deviation of 50 is shon. Shade the rogion under the…

A: The mean is 400 and the standard deviation is 50.

Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…

A: k = x-μσ

Q: Use the output provided in the formula sheets folder. Using the reduced model, what is the value of…

A: Based on given output we have to determine the estimate of standard deviation i.e S

Q: The scores on a mathematics exam have a mean of 73 and a standard deviation of 9. Find the x-value…

A: We have given that  X~N(mu,sigma^2) mu=73  , sigma = 9  ,Z-socre =5.019 Z-socre =(x-mu)/sigma

Q: d the population standard deviation for the number of smallmouth bass caught per day by each nt…

A: The formula to compute the population standard deviation is,

Q: from the follow mg freguency clistibution, Computo the standand deviation (5-D) of 100 stuclents…

A:

Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…

A: A. Suppose X is a random variable with expectation, μ and standard deviation, σ. Then, for any…

Q: ccording to a survey on part-time workers, the average base salary for women in sales is higher than…

A: Let X denotes the average base salary for men  Given: = $2500/month Converting it to 12 moth period,…

Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…

A:

Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…

A: Q.1 Ans: Solution-: Given: We find, (a) According to Chebyshev's theorem, at least .........% of…

Q: Suppose that the mean cranial capacity for men is 1170 cc (cubic centimeters) and that the standard…

A: (a) Given that, the value of mean is μ=1170 and standard deviation is σ=300 cc. Use the Empirical…

Q: de . Find the standard deviation of the observations 5, 11, 18, 25 and 41, using muill

A:

Q: The weights of a certain dog breed are approximately normally distributed with a mean of u = 53…

A: Given: μ = 53σ = 5

Q: A man works for a travel agency whose employees had an avergae income of Php32,000 with a standard…

A:

Q: Calculate the standard deviation of the following data sets with the computationa formula. If…

A: Solution: The sample data is  x = 13, 2, 5, 2 n= 4 observation . ∑x= 13+2+5+2∑x =22∑x2=…

Q: To determine the organic material in a dried lake bed, the percent carbon by mass is measured at two…

A: F test is used to check whether the variances or standard deviations of two groups differ (or) not.…

Q: The following data give the speeds (in kilometer) as measured by radar of 5 selected cars traveled…

A: The data shows the speeds (in kilometer) as measured by radar of 5 selected cars traveled at NLEX.

Q: From a sample with n 36​, the mean duration of a​ geyser's eruptions is 3.82 minutes and the…

A: Solution-: Given: μ=3.82,σ=0.72,n=36 Here, Lower Limit=1.16, Upper Limit=5.98

Q: The scores on a mathematics exam have a mean of 70 and a standard deviation of 6. Find the x-value…

A: We have given that  Mean = 70 Standard deviation = 6 Z-score, z = 5.19

Q: The mean score of a competency test is​ 82, with a standard deviation of 2. Between what two values…

A: Given that : Mean (u) = 82 S. D. (sgma ) = 2 Assume data set is nell shapped i.e  standard normal.

Q: Q2:The mean time taken by all participations to run a road race was found to be 200 minutes with a…

A: Chebyshev's theorem: At least 75% of the observations are lies between two standard deviations,…

Q: Based on the findings, the average monthly salary of 800 college professors in the university belt…

A: We have given that.   X~N( μ , ?^2 )   μ =55000 , ? =5000 , n=800   Z-score =( x - μ )/?

Q: A survey of 1000 men ages 20 to 30 found that their heights were normally distributed, with a mean…

A: From the provided information, Mean (µ) = 65 inches Standard deviation (σ) = 2.5 inches

Q: A survey indicates that the customers of a local supermarket spend an average of 45 minutes shopping…

A: The customer of local supermarket spend an average of 45 minutes for shopping. The standard…

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.