Consider a data set that has a mean of 16.8 and a standard deviation of 5.6. According to Chebyshev's Theorem, give an interval that has at least 93.75% of the data.

Q: Assume that a set of test scores is normally distributed with a mean of 110 and a standard deviation…

A: Empirical rule of probability:- Approx. 99.7% of the data lies between ± 3 SD limit of mean μ  ±3 σ…

Q: according to chebyshev's theorem, at least 88.9% of data will be between   Mean=15.4  Standard…

A: Chebyshev's theorem gives the minimum proportion of the data which must lie within a given number of…

Q: uppose that the resting h stributed with mean 80 a /hat heart rate would a m

A: Let X be a random variable with mean 80 and s.d. 15 that follows a normal distribution. So,…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given Data: Let X represent the random variable Mean=9 Standard deviation=1.1 X~ Normal (9, 1.12)…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given data,Mean μ=11sd      σ=1.2P(X<x)=20%x=?

Q: A data set with an unknown distribution has mean ?=360 and standard deviation ?=20.  State Chebyshev…

A: Given , μ = 360 , σ = 20

Q: The speeds of all cars on the tollway was found to be normally distributed with a mean of 63 miles…

A: It is given that that µ=63 mile per hour. Obtain the standard deviation of the speeds of all cars:

Q: Suppose the scores, X, on a college entrance examination is normally distributed with mean 550 and a…

A: Percentile : Percentile is the number such that certain percentage of data fall below that number.…

Q: The life of a battery is normally distributed with mean 70 hours with a standard deviation of 10…

A: Given, μ = 70 σ = 10 Z = X-μσ

Q: 1. The life spans of a particular species of turtle are normally distributed with a mean of 180…

A: Given that mean =180 ,s.d =40 P ( 100 <X < 260) = ?

Q: The lifespans of certain 350 sample cricket insects are normally distributed. it is found that 15%…

A: Let, X be the life span. μ =mean σ= sd

Q: Suppose you found that the average sea- faring bird can fly 8,000 km without stopping. The wandering…

A:

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given :  μ = 10 σ = 1.1

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: given data normal distribution μ = 12σ = 1.2

Q: Suppose that the lengths of pregnancies are normally distributed with a mean of 274 days and a…

A: The provided information is  µ=274 σ=10 P(X>280) P(X-µσ>280-27410)=P(z>0.6000)=0.2743 (from…

Q: A fire department in a rural county reports that its response time to fires is approximately…

A: Consider that a random variable x, defines the response time to fires.

Q: suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2700 grams and…

A: Answer:- Given, Babies born after a gestation period of 32 to 35 weeks have a mean weight of 2700…

Q: A dataset has a mean of 48.1 and a standard deviation of 6.3. What is the z-score of the value 18.5,…

A: Solution  Given That, A dataset has a mean of 48.1 and a standard deviation of 6.3. What is the…

Q: The shelf life of a battery produ wd by one major company is known to be Normally distributed, with…

A:

Q: In a recent study of 35 Grade5 students, the mean number of hours per week that they played video…

A: We know that,  Sample size (n) = 35, sample mean (x̄) = 16.6 and population standard deviation (σ) =…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given data,Mean μ=9 million dollarssd     σ=1.1 million dollarsP(X<x)=15%x=?

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: mean=8 standard deviation=1.1

Q: Suppose the talk time on a certain cell phone battery is approximately normally distributed with a…

A:

Q: Surveyors measured the number of cars that go through the intersection of Howard Street and Stadium…

A: Given that  Mean=Xbar=900.3 Standard deviation=sigma=17.35

Q: For a random sample of 90 overweight men, the mean number of pounds that they were overweight was…

A:

Q: Suppose that the life-span of goldfish can be modeled by the Normal Distribution with a mean of 5…

A:

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given Information: Suppose that the quarterly sales levels among health care information systems…

Q: The blue, red, and yellow curves all have a mean of 0, while the green curve has a mean of -2. pra…

A:

Q: The length of pregnancies are normally distributed with mean of 268 days and a standard deviation of…

A: Given : Length of pregnancies = X  X is normally distributed  Mean of X = 268 days  Standard…

Q: The length of time to complete a standard achievement test possesses a mean of 58 minutes, with a…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: study indicates that​ 18- to​ 24- year olds spend a mean of 115 minutes watching video on their…

A:

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Solution

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

A: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

Q: Suppose the durations of human pregnancies follow a mound-shaped distribution with a mean of 266…

A:

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given information- Population mean µ = 8 million Standard deviation σ = 1.1 million Z = -1.2816…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: The objective of this question is to find the sales level that separates the bottom 15% of all…

Q: Assume that a set of test scores is normally distributed with a mean of 110 and a standard deviation…

A: Given: A set of test scores is normally distributed with a mean of 110 and a standard deviation of…

Q: Suppose that the quarterly sales levels among healthcare information systems companies are…

A:

Q: At Pacific Freight Lines, bonuses are given to billing clerks when they complete 300 or more freight…

A: Given information Mean µ = 270 Standard deviation σ = 16 proportion of the time should a randomly…

Q: Suppose the scores of students on an exam are normally distributed with a mean of 558 and a standard…

A:

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.