Suppose that the mean and standard deviation of plants height are 130 and 42, respectively, if a random sample of size 64 is slected from these plants, then the probability that their average height is more than 125 is closest to: а. 0.72 O b. 0.23 с. 0.83 d. 0.28 О е. 0.17

Q: Suppose the weights of packages sent by a courier company follow a normal distribution with a mean…

A:

Q: A large population has a mean of 60 and a standard deviation of 8. A sample of 50 observations is…

A: GivenMean(μ)=60standard deviation(σ)=8sample size(n)=50

Q: A population has a mean of 33 and a standard deviation of 5 . What is the probability that the…

A: Population mean=33Population standard deviation=5Sample size n=58

Q: Suppose the number of students in a class for the Business Statistics program at a University has a…

A: Given Mean=23 Standard deviations=4.3 n=15

Q: For a population With a mean of 75 and a standard deviation of 12, what is the probability that a…

A:

Q: Assume that an individual's golf scores are normally distributed with a mean of 90.4 and a standard…

A: Let X denote the golf scores of an individual. Given that X follows N(mean = 90.4 , SD = 5.3), then…

Q: The company produces 100 kits daily and each kit has a mean output voltage of 12.5 volts and a…

A: Mean()=12.5standard deviation()=2.2

Q: A veterinary researcher takes an SRS of 60 horses presenting with colic whose average age is 12…

A: Option b is the correct answer.

Q: A particular fruit's weights are normally distributed, with a mean of 477 grams and a standard…

A: Mean u = 477grams Standard deviation o = 14 grams P(477 < x < 491) = ?

Q: firm manufactures light bulb whose length of life follows a normal distribution with mean 90 hours…

A: Given data,Mean μ=90sd      σ=2P(86<X<96)=?

Q: Suppose that the percentage of defective items on a certain production line is 15%. Draw 8 items at…

A: Given ,n=8p=0.15X=no.of defective itemsX~Binomial(n=8 , p=0.15)P(X=x)=cxn  px (1-p)n-x  ;…

Q: An auditor takes a random sample of size 36 from a population of 1000 accounts receivable. The mean…

A:

Q: Suppose that during any hour in a large department store, the average number of shoppers is 448,…

A: Given:

Q: Suppose that the walking step lengths of adult males are normally distributed with a mean of 2.3…

A:

Q: Suppose a population has a mean of 400 and a standard deviation of 24. If a random sample of size…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 394 grams and a standard…

A: Let X be the weights of the fruits follows normal distribution with mean 394 grams and standard…

Q: During a wisdom teeth removal procedure, 1, 2, 3, or 4 wisdom teeth are removed, depending on the…

A: Central limit theorem As per the Central limit theorem, the sampling distribution of sample mean…

Q: Assume that cans of Coke are filled so that the actual amounts have a mean of 12.00 oz and a…

A: Given Information :  Cans of Coke are filled so that the actual amounts have a mean of 12.00 oz and…

Q: 3. The average number of hours of sleep per night that a college freshman gets is 6.5 with a…

A: In this problem, the mean and standard deviation are 6.5 and 2.8 hours respectively. We first need…

Q: In a certain geographical region, the annual rainfall is normally distributed with a mean of 102.2…

A:

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

A:

Q: A particular fruit's weights are normally distributed, with a mean of 771 grams and a standard…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 3/1 grams and a standard…

A: given data normal distribution μ=371σ=11P(386<x<397)=?

Q: A population has a mean of 509 and a standard deviation of 458. Suppose a sample of size 100 is…

A: The population mean is  and the standard deviation is .The sample size is .The objective is to…

Q: A particular fruit's weights are normally distributed, with a mean of 541 grams and a standard…

A:

Q: A new species of rabbit has an average body length of 45mm with a standard deviation of 3mm. In a…

A: Given that the new species of the rabbit has an average body of 45mm, which means the mean is 45mm…

Q: A particular fruit's weights are normally distributed, with a mean of 382 grams and a standard…

A: A continuous random variable X is said to follow Normal distribution with parameters μ and σ2 if its…

Q: The body temperatures of adults have a mean of 98.6° F and a standard deviation of 0.60° F. If 36…

A: Given that, Mean = 98.6 Standard deviation = 0.60 Sample size, n = 36

Q: A particular fruit's weights are normally distributed, with a mean of 366 grams and a standard…

A: Given information: A particular fruit's weights are normally distributed, with a mean of 366 grams…

Q: The age of professors at a certain university is normally distributed with an average of 45.0 years…

A: Let X be the age of the professors at a certain university. X follows normal distribution that has…

Q: Suppose the heights of a certain population of people follow a normal distribution with a mean of…

A:

Q: A certain brand of automobile tire hae a life expectancy that ie normally dietributed with a mean of…

A: According to the given information, we have Mean = 20000 Standard deviation = 2500

Q: Suppose that the walking step lengths of adult males are normally distributed with a mean of 2.8…

A: # given x be the length of foot step of adult follow normal distribution with mean 2.8 and standard…

Q: Suppose the average age of a Tulane undergraduate is 20 years with a standard deviation of 1.2…

A:

Q: 2. The average number of customers that visited a particular store during the past year is 160 per…

A:

Q: Suppose that heights of women at UT Tyler are normally distributed with a mean of 64 inches and a…

A: It is given that the mean is 64 and standard deviation is 2.4.

Q: uppose the weights of apples in a particular orchard follow a normal distribution with a mean of 150…

A: given datanormal distributionμ = 150 gramsσ = 20 gramsn = 25

Q: Assume that the weights of all packages of a certain brand of cookies are normally distrib- uted…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 759 grams ar deviation of 37…

A: Let us consider the Particular fruit's weights are dented by X which follows normally distributed…

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: particular fruit's weights are normally distributed, with a mean of 679 grams and a standard…

A: Given μ=679σ=35

Q: A particular fruit's weights are normally distributed, with a mean of 643 grams and a standard…

A: Here, µ = 643 and σ = 38