During 1 week, an overnight delivery company found that the weights of its parcels were normally distributed, with a mean of 24 oz and a standard deviation of 6 oz.What percent of the parcels weighed between 12 oz?

Q: The lengths of the songs available for download on a website are normally distributed, with a mean…

A: Obtain the percent of the songs available for download on the website. The percent of the songs…

Q: A group of 30 students were sampled and measured their height. The average height was 168cm, with a…

A: Obtain the weight represents the 5th percentile. The weight represents the 5th percentile is…

Q: A livestock company reports that the mean weight of a group of young steers is 1106 pounds with a…

A: Given: μ=1106 and σ=79.…

Q: A livestock company reports that the mean weight of a group of young steers is 1154 pounds with a…

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: During 1 week, an overnight delivery company found that the weights of its parcels were normally…

A:

Q: The mean speed of a sample of vehicles along a stretch of highway is 67 miles per hour, with a…

A: From the provided information, Mean (µ) = 67 miles per hour Standard deviation (σ) = 2 miles per…

Q: If the average number of textbooks in professors' offices is 14, the standard deviation is 5, and…

A: Given that For textbooks, mean = 14, and SD = 5 For age, mean = 42, and SD = 10

Q: The weights of miniature horses are roughly normally distributed with a mean of 230 pounds and…

A: Given : The weights of miniature horses are roughly normally distributed with a mean of 230 pounds…

Q: If the mean height of bonsai trees is 52 cm with a standard deviation of 10 cm, 95% of the trees are…

A: NOTE : As per our guidelines we have to answer the first question if multiple questions are posted…

Q: The mean weight of newborn Golden Retriever Puppies is 15.2 ounces, with a standard deviation of 1.3…

A: Mean = 15.2 standarsd derivation = 1.3 x=14.4 p(x)=(x-mean)/s.d =(14.4-15.2)/1.3 = -0.8/1.3

Q: The cruising altitudes for the fleet of one commercial airliner are normally distributed with a mean…

A: It is given that the mean is 34,950 and the standard deviation is 1,800.

Q: The lengths of the Atlantic croaker fish are normally distributed with a mean of 10 inches and a…

A:

Q: In 2019, the amount of money that motorists spent on gas had a normal distribution with a mean of…

A: Given Information Number of persons sampled (n) = 2400 Mean (µ) = 900 Standard deviation(σ) = 100…

Q: the length of a certain species of fish were found to be normally distributed. the mean length is 72…

A: Any assumption about the parameter or probability function is called a hypothesis. Given data are…

Q: The average height of professional basketball players is around 6 feet 7 inches, and the standard…

A:

Q: The lengths of human pregnancies can be described by a Normal model with a mean of 268 days and a…

A:

Q: The lengths of trout in a certain lake are normally distributed with a mean of 7 inches and a…

A:

Q: In general, the larger the animal the longer the length of pregnancy. For the horse, for example,…

A: A z-score represents the position of a data point in terms of its distance from the mean when…

Q: Would lun ne IS! 12. Antonio's height is 1 standard deviation below the mean for boys his age. If…

A: Antonio's height is 1 standard deviation below the mean for boys his age. The heights of boys are…

Q: The weights of bags of baby carrots are normally distributed, with a mean of 31 ounces and a…

A: Solution: Let X be the weight of bag of baby carrots. From the given information, X follows normal…

Q: The weights of men are normally with a mean of 172 pounds and a standard deviation of 29 pounds.…

A: Let X be the random variable from normal distribution with mean (μ) = 172 and standard deviation (σ)…

Q: In an all boys school, the heights of the student body are normally distributed with a mean of 69…

A:

Q: A livestock company reports that the mean weight of a group of young steers is 1150 pounds with a…

A: μ=1150σ=87  =P1050<x<1250

Q: A student will spend 15 hours average each week in class. If the standard deviation is 2 hours, what…

A: Given that mean=15 and standard deviation = 2 Let, X= number of hours spent by a student in the…

Q: The mean life of a battery is 50 hours with a standard deviation of 6 hours. The manufacturer…

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Q: the average height on the soccer team is 66 inches with a standard deviation of 3. a z score of -1.6…

A: Introduction: Consider X as a normally distributed random variable, with mean μ and standard…

Q: How many of the people surveyed will have a weight between 130 and 140lbs?

A: Here the mean weight is 135 lbs with a standard deviation of 5 lbs.   Use normal distribution for…

Q: A biologist found the wingspans of a group of monary butterflies to be normally distributed with a…

A: As we are entitled to solve one question at a time I will answer 2nd one as some information is…

Q: The state of California has a mean annual rainfall of 22 inches, whereas the state of New York has a…

A: Given: For California: Mean,μ=22Std deviation,σ=4Sample size, n=30 For New York: Mean,μ=42Std…

Q: A popcorn company find that their 1kg bags have a mean of 985 grams with a standard deviation of 24…

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Q: In a particular city, the weight of newly born babies is normally distributed with a standard…

A:

Q: The prices of all college textbooks follow a bell-shaped distribution with a mean of $108 and a…

A: HERE GIVEN FOR BELL SHAPED DISTRIBUTION  MEAN=$108 S.D=$21

Q: A livestock company reports that the mean weight of a group of young steers is 1180 pounds with a…

A: GivenMean(μ)=1180standard deviation(σ)=90

Q: if the average snowfall for ottawa ontario canada is 98 inches per year and the standard deviation…

A: Let x be the snowfall for Ottawa Ontario Canada which follows normal distribution with mean 98 and…

Q: Books in the library are found to have an average length of 350 pages with a standard deviation of…

A: Given that, Books in the library are found to have an average length of 350 pages with a standard…

Q: What is the z-score if our standard deviation was 2, mean of 49 and our specific observation is 47?

A: Given: Standard deviation = 2 Mean= 49 Specific observation =47 Determine the Z- score using the…

Q: The heights of people are normally distributed with a mean of 86 inches and a standard deviation of…

A: X follows a Normal distribution with mean = 86 and S.D = 5 Then z=(x-mean)/SD = (x-86)/5  follows…

Q: A student scored 66 on a general science test where the class mean and standard deviation were 82…

A:

Q: The daily water usage per person in Davao City is normally distributed with a mean of 18 gallons and…

A: Given information: Let X be the random variable denoting the daily water usage per person in Davao…

Q: If corn has a normally distributed yield with a mean of 120 bushels per acre and a standard…

A: Given that,  E(X) =120 bushels pet acre Sigma=10 bushels We have to find the percentage of acres…

Q: In a survey of women in Canada, the mean height was 65 inches with a standard deviation of 3 inches.…

A:

Q: The US mean height for adult men is  = 68.5 inches, with a standard deviation of  = 3 inches. The…

A:

Q: The daily water usage per person in Davao City is normally distributed with a mean of 20 gallons and…

A: Empirical Rule : The empirical rule, also referred to as the three-sigma rule or 68-95-99.7 rule, is…

Q: The annual per capita consumption of bottled water was 33.3 gallons. Assume that the per capita…

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: According to the Department of Education the mean number of hours college students spend studying…

A:

Q: The mean height of male college students in a large city is 68 inches and the standard deviation is…

A: Answer:----.                       Date:----10/10/2021

Q: The reading speed of sixth grade students is approximately normal with a mean speed of 115 word per…

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

Q: The average price of a personal computer is $949. If the computer distributed with a standard…

A:

Q: The daily water usage per person in Davao City is normally distributed with a mean of 20 gallons and…

A: Given that, Mean = 20 Standard deviation = 5