)Listen The average life of a brand of automobile tires is 30,000 miles, with a standard deviation of 2,000 miles. If a tire is selected and tested, find the probability that it will have a lifetime between 27,000 and 32,000 miles. Assume the variable is normally distributed. Give your answer as a percent rounded to two decimal places (to the nearest hundredth).

Q: The distribution of the lengths of a commercially caught fish is bell-shaped with mean 24 cm and…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: the data set has size 50. Approximately how many observations lie within three standard deviation to…

A: Empirical rule (68-95-99.7 rule): Approximately 68% of data lies within the first standard…

Q: Between 1.00 and 2.25 Click to view page 1 of the table. Click to view page 2 of the table. Draw a…

A: Given : Population mean , μ = 0 Population standard deviation , σ = 1 The above data corresponds to…

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: here given , Assume that thermometer readings are normally distributed with a mean of 0°C and a…

Q: Use the body temperatures, in degrees Fahrenheit, listed in the accompanying table. The range of the…

A:

Q: The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range,…

A: Given data:- 12,17,23,14,13,18,21,16,14,19Range=maximum-minimum=23-12=11Mean =…

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: The probability of getting a reading between 1.50 and 2.25 is obtained below as follows:   From the…

Q: people think that the "normal" adult body temperature is 98.6°F. In a more recent study, researchers…

A:

Q: Truck delivery fleet travel a mean of 110 miles per day with a standard deviation of 25 miles per…

A: Obtain the Z-score for the random variable X equals 97. The Z-score for the random variable X equals…

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

A: Here given situation is of normal distribution, which is continuous distribution. Let X : IQ of…

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: Suppose the random variable z defines the thermometer reading.

Q: Some sources report that the weights of full-term newborn babies in a certain town have a mean of 8…

A: Provided information is; Mean(μ) = 8 Standard deviation(σ) =1.2 Let , X be the random variable that…

Q: Part 1 of 3 What is the probability that the sample mean cholesterol level is greater than 212? The…

A: The central limit theorem states that if you have a population with mean μ and standard deviation σ…

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard…

A: Let "X" be the IQ score of the adults.

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: Given information- Population mean µ = 0 Standard deviation σ = 1.00 We have to find the probability…

Q: The average family spends $112 at the grocery store each week with a standard deviation of $35.…

A: Step 1:We have given that :mean(μ)=$112satndard dwviation(σ)=$35X is the amount spent by the…

Q: Trucks in a delivery fleet travel a mean of 130 miles per day with a standard deviation of 39 miles…

A: The data on per day mileage of a delivery truck is normally distributed. Population mean, Population…

Q: Between 1.00 and 2.00 Click to view page 1 of the table. Click to view page 2 of the table. Draw a…

A: It is given thatMean, μ = 0Standard deviation, σ = 1Z-Score, Z = ( X - μ )/σwhere, Z be the standard…

Q: The heights of adult women in the US are normally distributed with a mean of 64 inches and a…

A: Solution: Let the random variable X denotes the height of an adult woman in the U.S. It is given…

Q: The data shows the roundtrip mileage that randomly selected students drive to school each day. Find…

A: Given data is Miles  Frequency 10-14 21 15-19 24 20-24 5 25-29 16 30-34 16

Q: Collect 50 data values of one variable and perform the following Minitab functions. Each function…

A: 50 data values are considered for salt as : ID sold 1 1.265 2 2.2 3 1.225 4 1.9 5…

Q: The 5 participants in a weight-loss class lost the following weights (in pounds) after three weeks…

A: Number of samples (n) = 6 X X2 4 16 6 36 6 36 2 4 2 4

Q: A particular fruit's weights are normally distributed, with a mean of 526 grams and a standard…

A:

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: Normal distribution μ=0  σ=1randomly selected and tested

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: Given thermometer readings are normally distributed with a mean of 0°C and a standard deviation of…

Q: The sick leave time of employees in a firm in a month is normally with a mean of 100 hours and a…

A: Let X be a continuous random variable of employees sick leave time in a firm in month (in hours) is…

Q: The length of time running shoes last can be modeled by an exponential distribution. On average a…

A:

Q: Trucks in a delivery fleet travel a mean of 100 miles per day with a standard deviation of 38 miles…

A:

Q: A certain brand of car has an average lifespan of 15 years, which is exponentially distributed. Find…

A:

Q: A statistics professor asks each of the students in an introductory statistics lecture to fill out a…

A: I have provided the answers using Excel

Q: Trucks in a delivery fleet travel a mean of 80 miles per day with a standard deviation of 35 miles…

A: We denote the mean by the symbol  and the standard deviation by the symbol . It is giventhat  and…

Q: The average number of kilos of meat a person consumes in a year is 105 kilos. Assume that the…

A: Average (µ) = 105 Standard deviation(σ) = 12 Distribution is approximately normaln = 40 We have to…

Q: Find the indicated probability. The incomes of trainees at tthe local mill are normally distributed…

A:

Q: Calculate and answer. Show complete solution. The height of adolescent females in Canada is said to…

A:

Q: Temperatures a city are distributed approximately normal, with a mean of 61 degrees fahrenheit and a…

A: Given data,Mean μ=61sd    σ=6P(X<70.5)=?

Q: y=3.1  n= 1.6 standard deviation  Find probability that the child spends less than 3.4 hours a day…

A: Given that If  y=3.1  n= 1.6 standard deviation

Q: The mean life of a tire is 30,000 km. The standard deviation is 2000km. About 95% of all tires have…

A: According to the given information, we have Mean = 30000 km Standard deviation = 2000km

Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…

A: GivenMean(μ)=0standard deviation(σ)=1

Q: Assume that thermometer readings are normally distributed with probability of the reading. (The…

A:

Q: A statistics professor gives a survey to each of the 100 students in an introductory statistics…

A: Obtain the population standard deviation:

Q: A normal population has mean u = 58 and standard deviation o = 8.. What is the 83rd percentile of…

A: Here we need to find the 83rd Percentile of the given normal distribution.

Q: A particular fruit's weights are normally distributed, with a mean of 299 grams and a standard…

A: Given that.   X~N( μ , ?^2 )   μ=299    , ?=8   , n=13   Z-score =( x - μ )/?