Suppose weights, in pounds, of dogs in a city have an unknown distribution with mean 31and standard deviation 5 pounds. A sample of size n=39 is randomly taken from the population and the sum is taken. What is the probability that the resulting sum is between 1180 and 1194 pounds?

Q: A particular fruit's weights are normally distributed, with a mean of 356 grams and a standard…

A: From the given information, let X be the fruit’s weight. Mean fruit weights  Standard deviation…

Q: normalized so this is the case). What is the probability that a randomly selected group of 100…

A: Given: The average IQ of a population is 100 with standard deviation 15. sample size (n) = 100

Q: The time it takes to grade an test has a mean of 5.45 minutes and a standard deviation of 1.2…

A: Given that.   X~N( μ , ?)   μ=5.45    , ?=1.2   Z-score =( x - μ )/?

Q: Suppose an experiment of a dodecagon (12-sided die) is rolled at random. • If we let X to be the…

A:

Q: 3. A certain type of rope has an average breaking strength of 1,200 pounds. If the standard…

A: Let X be the random variable from normal distribution with average (μ) = 1200 and standard deviation…

Q: If X is a random variable with a mean of 20 and a standard deviation of 5, what is the probability…

A: probability that X is greater than 25=0.1587

Q: Suppose a convenience store averages 450 customers per day entering the store with a standard…

A: Let X be a random variable following normal distribution with mean μ and variance σ2, i.e.,…

Q: The weights of adult Great Dane are normally distributed with a mean of 100 lb and a standard…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 269 grams and a standard…

A: A particular fruit's weights are normally distributed,  Mean = 269 Standard deviation = 18

Q: A particular fruit's weights are normally distributed, with a mean of 285 grams and a standard…

A:

Q: There are 350 dogs at a dog show, who weigh an average of 15 pounds with a standard deviation of 7…

A: Given,sample size(n)=40mean(μ)=15standard deviation(σ)=7

Q: Suppose one value is selected from a uniform distribution with a = 0 and b = 11. What is the…

A: Given: X~U(0,11) a=0 b=11

Q: rage life of a certain steel-belted radial tire is advertised as 60,000 miles. Assume that the life…

A: The corresponding z-value needed to be computed is:

Q: Suppose in a certain primary school, the weight of boys are normally distributed with mean 28kg and…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: Full-time college students report spending a mean of 29 hours per week on academic​ activities, both…

A: We have given that,  Let X be the random variable from normal distribution with mean (x̄) = 29,…

Q: If Z is a random variable with a mean of 100 and a standard deviation of 20, what is the probability…

A: Introduction: A random variable Z with mean 100 and standard deviation 20 follows a normal…

Q: Suppose IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What…

A:

Q: Suppose the weight of hummingbirds are distributed normally with a mean of 25 oz and a standard…

A: Obtain the probability that a randomly selected hummingbird weighs more than 28oz. The probability…

Q: A particular fruit's weights are normally distributed, with a mean of 600 grams and a standard…

A: Solution: Let X be the fruit’s weight. From the given information, X follows normal distribution…

Q: Suppose student test scores for a nationwide standardized test have an unknown distribution with…

A: Given M = 259 standard deviation = 33 x = 264.3      To determine,  What is the probability that the…

Q: A population which has a size of N=100 has a mean of 50 and a standard deviation of 10. What is the…

A:

Q: Find the probability that the mean height of the sample is greater than 58 inches.

A: Assume that the height of adult females in the United States is approximately normally distributed…

Q: Suppose that in a large population of women (aged 20 to 29-years-old) that the mean serum…

A: From the given information ,Population mean , 183Population standard deviation , 37sample size , n =…

Q: Suppose in a certain primary school, the weight of boys are normally distributed with mean 28kg and…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 216 grams and a standard…

A: From the provided information,

Q: A particular fruit's weights are normally distributed, with a mean of 370 grams and a standard…

A: The normal probability distribution is widely used to find the probability for the continuous random…

Q: A particular fruit's weights are normally distributed, with a mean of 448 grams and a standard…

A:

Q: Suppose it is known that the weight of a certain population of individuals are approximately…

A: Let, X=the weight of a certain population Given that X follows a normal distribution with mean=80…

Q: A particular fruit's weights are normally distributed, with a mean of 355 grams and a standard…

A:

Q: Suppose that the ages of all SCC students are normally distributed with mean 24.01 yrs and s.d. 5.31…

A: Given data, Mean μ=24.01sd     σ=5.31P(X>20)=?

Q: A particular fruit's weights are normally distributed, with a mean of 470 grams and a standard…

A: According to the given information, we have A particular fruit's weights are normally distributed,…

Q: If X is a random variable with a mean of 20 and a standard deviation of 5, what is the probability…

A: From the provided information, Mean (µ) = 20 Standard deviation (σ) = 5

Q: Suppose the heights of a group of people follow a normal distribution with a mean of 170 cm and a…

A: The formula of z score is             z=x-μσ From the given data Mean = µ = 170,  Standard deviation…

Q: Suppose weights, in pounds, of dogs in a city have an unknown distribution with mean 80 and standard…

A: We have given that  Mean =80 Standard deviation =12 Sample size n =87

Q: A particular fruit's weights are normally distributed, with a mean of 450 grams and a standard…

A: Given,mean(μ)=450standard deviation(σ)=12