The amount of time students study for an exam follows a normal model with a mean of 6 hours and a standard deviation of 1.5 hours. What is the probability of student studies between 3.5 and 5.5 hours?

Q: Infant birth weights are normally distributed with a mean of 8 pounds and a standard deviation of…

A: Answer: As per the given data, Let X represent infant birth weights Here X is normally distributed…

Q: The flying time of a drone airplane has a normal distribution with a mean of 4.76 hours and a…

A: Given ,         Meanu=4.76         Standard deviation σ=0.04

Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…

A: The probability value is calculate by means of standard normal variate with the random variable,…

Q: The time it takes a computer repair company to diagnose a computer follows a normal distribution…

A: Given data  X = time taken for computer repair company to diagnose a computer μ=50   σ=12…

Q: Major league baseball salaries are normally distributed with average 3.3 million with a standard…

A: Answer: From the given data, Suppose X: The salaries of major league baseball X follows a normal…

Q: Assume that the time a student stays in school is normally distributed with a mean of 5 hours and a…

A: Given: μ=5 and σ=0.5.   The z-score is calculated asz=x-μσ

Q: Major league baseball salaries are normally distributed with average 3.3 million with a standard…

A: Given problem Given that   Major league baseball salaries are normally distributed with average…

Q: The daily sales of a small retail store in Toronto for the last 365 days are normally distributed…

A:

Q: The mean age that cats get adopted at a shelter is 21.4 months with a standard deviation of 3.6…

A: Solution: Let X be the age. From the given information, X follows normal distribution with mean…

Q: If a golfer hit drives a golf ball with a mean of 180 yards and a standard deviation of 20 yards,…

A: We have given that  A golfer hit drives a golf ball with a mean of 180 yards and a standard…

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

A:

Q: The table below gives the percent of children under five considered to be underweight. Percent of…

A: Given data is percent of underweighted children Number of countries 16-21.45 22 21.45-26.9 4…

Q: Body temperatures of adults are normally distributed with a mean of 98.60 Fahrenheit and a standard…

A: The Z-value of a random variable X is defined as follows: Here, the mean and standard deviation of…

Q: College students average 8.4 hours of sleep per night with a standard deviation of 35 minutes. If…

A:

Q: The amounts of time students study for an exam follows a normal model with a mean of 6 hours and a…

A: Obtain the standard z-score for the random variable X equals 3.5. The standard z-score for the…

Q: An individual golfer's scores have a mean of 90.4 and a standard deviation of 5.3. What is the…

A:

Q: The playing life of a Sunshine radio has a Normal distribution with a mean of 600 hours and a…

A: The playing life of a radio is normally distributed with mean 600 hours and standard deviation of…

Q: Scores on a Registered Nurse (RN) aptitude exam are normally distributed with a mean of 72 and a…

A: Given,Population mean(μ)=72Population standard deviation(σ)=8

Q: TT Number Approved Frequency D The manager of the commercial mortgage department of a large bank has…

A:

Q: Americans spend an average 12.2 minutes in the shower. If the standard deviation of the variable is…

A:

Q: The population full-time equivalent number of students (FTES) at Lake Tahoe Community College for…

A: Measure of central tendency measures the central or average value of a dataset. Measured of…

Q: The playing life of a Sunshine radio has a Normal distribution with a mean of 600 hours and a…

A: The playing life of a radio is normally distributed with mean 600 hours and standard deviation of…

Q: The patient recovery time for a particular surgical procedure is normally distributed with a mean of…

A: A normal distribution of random variable has bell shape curve which is centred at mean of the…

Q: The playing life of a Sunshine radio has a Normal distribution with a mean of 600 hours and a…

A: It is given that the mean is 600 and the standard deviation is 100.

Q: The time college students spend on the Internet follows a Normal distribution. At Johnson…

A: Given,mean(μ)=5standard deviation(σ)=1.2sample size(n)=100

Q: Infant birth weights are normally distributed with a mean of 8 pounds and a standard deviation of…

A: Given,mean(μ)=8standard deviation(σ)=0.8

Q: Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2 million in…

A:

Q: Assume that the time a student stays in school is normally distributed with a mean of 5 hours and a…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: College students average 7.1 hours of sleep per night with a standard deviation of 35 minutes. If…

A:

Q: What is the Standard Deviation?

A: You want to know about standard deviation.We will deeply understand the meaning of standard…

Q: What is the relationship between the standard deviation and variance?

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.