Consider a data set that has a mean of 82.7 and a standard deviation of 14.1. According to Chebyshev's Theorem, give an interval that has at least 91.14% of the data

Q: a successful basketball player has a height of 6 feet 9 inches, or 206 cm. Based on statistics from…

A: Given,           Z -score=4.45           A basket ball player has a height of  6 feet 9…

Q: The weekly salaries (in dollars) for some registered nurses are listed below: 774   446  1019  795…

A: Given data,   774   446  1019  795  908  667  446  960     The objective is to find the mean,…

Q: for this set of data, the standard deviation is equal to: 9,8,10,5,5,2,3,6,3

A: Mean:The formula for finding mean is shown below:

Q: To be accepted into an honor society, a student must have a grade-point average (GPA) in the top 10%…

A: It is given that, to be accepted into an honor society, a student must have a grade-point average…

Q: Among social work students, the variable "number of textbooks purchased during the academic year"…

A: The Normal distribution is also called as the Gaussian distribution. It is the most common…

Q: In a normally distributed data set with a mean of 24 and a standard deviation of 4.2, what…

A:

Q: Bundles of firewood are normally distributed with a mean of 20 pounds, and a standard deviation of 2…

A: According to the given information, we have Mean = 20 Standard deviation = 2 Z score = 1.50

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A:

Q: Ojai is a weather station in the state of California and Seabrook is a weather station in the state…

A: Given information- We have given the data of noontime temperatures recorded among weather stations…

Q: video game c

A: given, sample size(n) = 1500 sample mean (x̄) = 115 sample stadard deviation (s) = 11

Q: A data set has a mean of 60.4 and a standard deviation of 5.2    Is a value of 45 unusual? Is a…

A: From the provided information, Mean (µ) = 60.4 Standard deviation (σ) = 5.2 X~N (60.4, 5.2)

Q: he mean life of a battery is 50 hours with a standard deviation of 7 hours. The manufacturer…

A: Given data,Mean μ=50standard deviation σ=7P(X<40)=?

Q: A sociologist found that in a sample of 50 retired men, the average number of jobs they had during…

A: Given that  Sample size=50 , Mean=6.9 Population Standard deviation=2.3

Q: In order to estimate the average electric usage per month, a sample of 64 houses was selected and…

A: Given data in order to estimate the average electric usage per month a sample of 64 houses was…

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

A: Here we need to find x such that P(X>x)=0.0793, where X~N(73,11).

Q: An employer claims that full time employees have a mean income of $35,000. A sample of 200 employees…

A: From the provided information, Sample size (n) = 200 Sample mean (x̅) = $34000 Population standard…

Q: Is it worth pursuing a doctoral degree in education if you already have an undergraduate degree? One…

A: The confidence interval is calculated using the combined value of sample statistic and the margin of…

Q: Suppose The total daily carbohydrate intake and for all boys age 13 and 15 years old in the US is…

A: Let x be the daily carbohydrate intake for all boys age 13 and 15 years old in the US which follows…

Q: A tire company finds the lifespan for one brand of its tires is normally distributed with a mean of…

A: GivenMean(μ)=48200standard deviation(σ)=5000

Q: If a data set has a mean of 80 and a standard deviation of 10, calculate + 1.5 standard deviations

A: Here, the data set has a mean of 80 and a standard deviation of 10.

Q: A line for tickets to a broadway show had a mean waiting time of 20 minutes with a statistic…

A: Given: Mean,  μ=20 Standard deviation, σ=5 Sample size, n= 200 Use normal approximation here, the…

Q: The weights of domestic, adult cats are normally distributed with a mean of 10.42 pounds and a…

A: Given Information Mean µ = 10.42 Standard deviation(σ) = 0.87

Q: A researcher wishes to estimate within $200 the mean amount of money a county spends on road repairs…

A: When the population standard deviation is known, then the margin of error is calculated by ME=z*σn,…

Q: The weight of a division I college football player has a mean of 255lb and a standard deviation of…

A:

Q: The amount that people pay for their cellphone service is normally distributed with a mean of $136…

A:

Q: In a normally distributed data set of how long customers stay in your store, the mean is 43.5…

A: Given data Mean μ = 43.5 Standard deviation σ = 3.9 95% of your customers to stay in your store.…

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: An​ assembly-line machine turns out washers with the following thicknesses​ (in millimeters). Find…

A:

Q: A nutritionist claims that the mean tuna consumption by a person is 3.6 pounds per year. A sample of…

A: Given, A nutritionist claims that the mean tuna consumption by a person is 3.6 pounds per year. A…

Q: The typical college freshman spends an average of ?=150minutes per day, with a standard deviation of…

A: Solution: Let X be the time on social media. From the given information, X follows normal…

Q: A nutritionist claims that the mean tuna consumption by a person is 3.5 pounds per year. A sample of…

A:

Q: A manager is interested in finding the average number of sales per day at a sporting goods store. If…

A: Obtain the sample size. The sample size is obtained below as follows: The formula of sample size is,…

Q: Three high school basketball teams measured the heights of all of their basketball players: The…

A: From the provided information, Derby Dragons have a mean height of 72.0 inches that is (µ1) = 72.0…

Q: A set of data items is normally distributed with a mean of 60. Convert the data item of 55 to a…

A: Given that: Mean = 60Standard deviation = 5Data item = 55

Q: A researcher wishes to estimate within $20 the average cost of postage a community college spends in…

A: GivenMargin of error(E)=20standard deviation(σ)=60confidence level = 90%

Q: A nutritionist claims that the mean tuna consumption by a person is 6 pounds per year. A sample of…

A:

Q: According to a study, the salaries of registered nurse are normally distributed with a mean of 56310…

A: Given,mean(μ)=56310standard deviation(σ)=5038

Q: Tubes are manufactured in a company that has a mean of life, (hr = 800) and a standard deviation of…

A:

Q: If the average height of all women is 63.5 inches and the standard deviation is 2.5 inches,…

A:

Q: An instructor claims that the average number of hours needed to study for a final exam in order to…

A: The significance test for single mean is tested using the z test, if the population standard…

Q: A Research sampled 50 doctors to obtain a mean of 145,580 pesos, and standard deviation of 13,200…

A: given   sample size 50  mean =145580 standard deviation =13200 the 95% confidence interval Z score…

Q: The college board reports that in a recent year, the mean mathematics SAT score was 514, and the…

A:

Q: College Professors have incomes with a standard deviation that is less than $21,000. A recent study…

A:

Q: Find the mean and standard deviation of the original set of data.

A:

Q: The number of hours spent per week on household chores by all adults has a mean of 28 hours and a…

A:

Q: On average, accountants earn approximately an average of $6500 per year in the United States. Assume…

A:

Q: An elementary school class ran one mile with a mean of 11 minutes and a standard deviation of three…

A: (a) In statistics, the mean is one of the measures of central tendency. It is calculated as the sum…

Q: he management of a national automobile manufacturer advertises a free transmission if it fails. The…

A:

Q: Find the standard deviation for this data set. if a one goal hockey game was added to this data set,…

A: From the plot representing the number of goals scored per game, there are three games in which three…

Q: Rosencrantz and Guildenstern are on a weight-reducing diet. Rosencrantz, who weighs 178 lbs.,…

A: Given data,For RosencrantzMean =145sd=15Weight is x=178For GuildensternMean =165sd=20Weight is x=204

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.