Use the continuity correction factor, estimate the area under the normal curve that approximates the probability that fewer than 4 out of the 25 Students on the 4th floor of a dorm stream TV programs online on their computers instead of using a cable television.             Assume that the number of students who stream programs on their computers on any given dorm floor with 25 residents has a binomial distribution with a mean of 7.00 and a standard deviation of approximately 2.16.

Q: A lightbulb is advertised as lasting 1000 hours with a standard deviation of 150 hours. Assume the…

A: It is given that, the mean and standard deviation are 1,000 and 150, respectively.

Q: sample of 22 diamonds from a jewelry dealer gives an average weight of 0.86 carats with a standard…

A: As the population standard deviation is not known, we will use t Distribution. The number of degrees…

Q: Assume that the scores of a college entry exam are normally distributed with a mean of 400 and a…

A: Given,mean(μ)=400standard deviation(σ)=60

Q: A lightbulb is advertised as lasting 1000 hours with a standard deviation of 150 hours. Assume the…

A: The lasting duration of lightbulb is normally distributed with mean 1000 hours and standard…

Q: Assume that adults have IQ scores that are normally distributed with a mean of y = 100 and a…

A: The objective of this question is to find the probability that a randomly selected adult has an IQ…

Q: The height of the students in a class shows normal distribution. Students in this class have an…

A: We have to find givén probability..

Q: The percent of fat calories that a person in a city consumes daily is normally distributed with a…

A:

Q: Assume that readings on thermometers are normally distributed with a mean of 0 and a standard…

A:

Q: Two companies, A and B, drill wells in a rural area. Company A charges a flat fee of 3296 dollars to…

A: The depths of wells drilled in this area have a normal distribution with a mean of 235 feet and a…

Q: A recent study found that the life expectancy of a people living in Africa is normally distributed…

A: From the provided information,

Q: According to a poll, a shopper spends an average of 45 minutes at the supermarket for each trip,…

A: Given : Mean , μ = 45Standard deviation, σ = 12 The variable x represents the duration of time spent…

Q: The height distribution of a certain breed of terrier dogs has a mean of 72 centimeters and a…

A: It is given that the population mean heights of terrier dogs and poodles are 72 and 28.

Q: The cost of unleaded gasoline in the Bay Area once followed an unknown distribution with a mean of…

A: We have given that  Mean=mu=4.89 Standard deviation=sigma=0.90 Sample size=n=35

Q: 2) The annual rainfall in a large metropolitan area is approximately normal with a mean of 42 inches…

A: Given: Population mean annual rainfall μ=42 Population standard deviation σ=7

Q: The IQ of 1,000 incoming students at University of Bayabas is normally distributed with a mean of…

A: Mean = 103 Standard deviation=10

Q: An electrical firm manufactures light bulbs that have a life, before burn-out, thatis normally…

A:

Q: Assume that people playing World of Warcraft in a week has a normal distribution with a mean of 54…

A: This question requires us to use the normal distribution to calculate the probability of a randomly…

Q: At a large manufacturing company the mean age of workers is 37 years, and the standard deviation is…

A:

Q: Spray drift is a constant for pesticide applications and agricultural producers. Suppose that the…

A:

Q: study found that the mean migration distance of the blue crab in a Chesapeake Bay area was 14.1 km…

A:

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

A:

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: Assume that weights of adult females are normally distributed with a mean of 80 kg and a standard…

A: Let X denotes the weights of adult females. Given that X~N(μ=80,σ2=(22)2). Let Z=X-8022, then…

Q: According to the records of an electric company serving the Boston area, the mean electricity…

A: The mean and standard deviation are 1650 and 320, respectively.

Q: The lifetime of a particular component is normally distributed with a mean of 1000 hours and a…

A: Given DataMean = 1000Standard deviation = 100probability that a randomly drawn component will last…

Q: The standard deviation of the lengths of stays on international cruises is 7.3 days. The sampling…

A: The standard deviation of the lengths of stays on international cruises is 7.3 days Total Sample =70…

Q: Assume that adults have IQ scores that are normally distributed with a mean of mu equals 100 and a…

A:

Q: he average lifetime of the bulbs produced in factory A is 2500 hours and their standard deviation is…

A: Given : Factory A : X1 = 2500σ1 = 250 Factory B : X2 = 2100σ2 = 150

Q: Assume that the readings on the thermometers are normally distributed with a mean of 0 degrees and…

A:

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: According to the given information in this question We need to find the following probability

Q: Assume that females have pulse rates that are normally distributed with a mean of u=74.0 beats per…

A: Mean = 74.0 Standard deviation = 12.5 Sample size =

Q: Assume that heights of U.S. men between 45 and 50 years of age are normally distributed with mean 70…

A: From the information, sample size is 49, mean 70 inches and a standard deviation of 0.75 inches

Q: A lightbulb is advertised as lasting 1000 hours with a standard deviation of 150 hours. Assume the…

A: It is given that the mean and standard deviation are 1,000 and 150, respectively.

Q: Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105 and a…

A:

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: According to a poll, a shopper spends an average of 45 minutes at the supermarket for each trip,…

A:

Q: The noise reduction processor of an HDTV receiver computes an average frame over every 25 frames…

A: Solution: Let X be the noise in the original images that reach the receiver. From the given…

Q: A manufacturer of calculator batrries claims that the mean length of life for its battry is 500…

A:

Q: An electrical firm manufactures light bulbs that have a length of life that is normally distributed…

A:

Q: The length of time it takes to find a parking space is normally distributed with a mean of eight…

A: Solution: Let X be the length of time it takes to find a parking space. From the given information,…

Q: Assume that the square footage of a residential house in the US is normally distributed with a…

A: According to the given information in this question  We need to find the probability that it will be…

Q: The time it takes to produce a product in a factory is known To follow a normal distribution with a…

A: We have given that.   X~N( μ , ?^2 )   μ = 470 , ? = 60   Z-score =( x - μ )/?

Q: Assume that heights of U.S. men between 45 and 50 years of age are normally distributed with mean 70…

A: Find the probability that the average height of these 49 men is less than 69.8 inches.

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.