For a certain type of computer, the length of time between charges of the battery is normally distributed with a mean of 50 hours and a standard deviation of 5 hours. Assuming there were 900 computers that were put to test, how many computers have a battery life of between 40 to 60

Q: The heights of a particular type of tree are normally distributed with a mean height 20.2 feet and…

A: The heights of a particular type of tree are normally distributed with a mean height , μ = 20.2 feet…

Q: Suppose a small paint manufacturing company has a daily production that is normally distributed with…

A: Solution: It is given that a small paint manufacturing company has a daily production that is…

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: A particular fruit's weights are normally distributed, with a mean of 736 grams and a standard…

A: Given,   Mean = 736 Standard deviation = 10

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: A particular fruit's weights are normally distributed, with a mean of 525 grams and a standard…

A:

Q: Elephants have the longest pregnancy of all mammals. suppose that for Asian elephants, the lenghts…

A: The objective of this question is to find the percentage of Asian elephant pregnancies that are…

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

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: A particular fruit's weights are normally distributed, with a mean of 486 grams and a standard…

A:

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 lengths of pregnancies are normally distributed with a mean of 280 days and a standard deviation…

A:

Q: Steel rods are manufactured with a mean length of 25 centimeters (cm). Because of the variability in…

A: Given, Steel rod length are normally distributed with mean 25 cm and standard deviation 0.07.

Q: a particular fruit weights are normally distributed, with a mean of 787 grams and a standard…

A: Let us define X=Random variable of the fruit’s weight with mean=787 grams and standard deviation= 9…

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Let X be the length of the steel rods. Then X~N (144.3,0.8) i.e. µ=144.3 and σ=0.8

Q: A particular fruit's weights are normally distributed, with a mean of 305 grams and a standard…

A: Given: Formula: Let "X" be the weight of fruits in grams.

Q: Steel rods are manufactured with a mean length of 27 centimeter​ (cm). Because of variability in the…

A: Given Data Population Mean,μ = 27.0 Population Standard Deviation,σ = 0.06

Q: Beth randomly chose 30 school days and timed her drive to school on those days. Ana randomly chose…

A: Given that  We have to test hypothesis for the claim that Beth’s drive time is greater than…

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

A:

Q: obiles? Assume the samples are random and independer dard normal distribution table. dard normal…

A: Let μ1 denote the mean braking distance of automobile A. Let μ2 denote the mean braking distance of…

Q: If an espresso machine out-pour is normally distributed with the mean of 0.9 ounces and standard…

A: Let  X be the random variable from normal distribution with mean (μ) = 0.9 and standard deviation…

Q: A particular fruit's weights are normally distributed, with a mean of 659 grams and a standard…

A: From the provided information, Mean (µ) = 659 grams Standard deviation (σ) = 7 grams Let X be a…

Q: A particular fruit's weights are normally distributed, with a mean of 230 grams and a standard…

A: The provided information is:

Q: A ski gondola carries to the top of a mountain. Assume that weights of skiers are normally…

A: Given :  Load limit = 3500lb Number of passengers = 25 mean = 180lb standard deviation = 44l

Q: The population weights of a particular fruit is normally distributed, with a mean of 689 grams and a…

A: Given: μ = 689 σ = 30 n = 18 The value of z at 4%, i.e., corresponding to the right to the 4% area…

Q: A particular fruit's weights are normally distributed, with a mean of 604 grams and a standard…

A: GivenMean(μ)=604standard deviation(σ)=21

Q: A particular fruit's weights are normally distributed, with a mean of 621 grams and a standard…

A: It is given that the fruits weights follow normal distribution with mean 621 and standard deviation…

Q: In a mango farm of 500 trees, the mean harvest is 96.5 kg of mango fruits per tree with a standard…

A: In a mango farm of 500 trees, the mean harvest is 96.5 kg of mango fruits per tree with a standard…

Q: To compare the dry braking distances from 30 to 0 miles per hour for two makes of automobiles, a…

A: Given that  α=0.10That is,α=10%Level of significance =10%

Q: e diameters of Douglas firs grown at a Christmas Tree Farm are normally distributed with a mean of 4…

A: GIVEN DATA, normal distributionμ=4σ=1.5we have to find out the given probabilities.

Q: A particular fruit's weights are normally distributed, with a mean of 464 grams and a standard…

A: Let "x" be the weight of the fruit in grams. Sketch the normal curve and shade the area of 0.18…

Q: A particular fruit’s weights are normally distributed, with a mean of 712 grams and a standard…

A: Given,mean(μ)=712  gramsstandard deviation(σ)=28  grams

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 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: A particular fruit's weights are normally distributed, with a mean of 562 grams and a standard…

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

Q: particular fruit's weights are normally distributed, with a mean of 522 grams and a standard…

A: Here we find  The heaviest 11% of fruits weigh more than how many grams

Q: A particular fruit's weights are normally distributed, with a mean of 620 grams and a standard…

A: Probability distributions are of two types, discrete and continuous distributions. Normal…

Q: A particular fruit's weights are normally distributed, with a mean of 519 grams and a standard…

A: The answer is attached below,

Q: Without the degrees of freedom, the standard deviation of population will be estimated: smaller same…

A: Here we want to know about the without degrees of freedom standard deviation is.

Q: The main purpose of inferential statistics is to know whether: random sampling error occurs. the…

A: Note: Hi there! Thank you for posting the question. As there are several independent questions,…

Q: f the weighte of 8000 men followe a normal dietribution with mean 67 k and the standard deviation 10…

A: How many weights are less than 60kg?