Corn flakes come in a box that says it holds an average weight of 68 ounces of cereal with a standard deviation of 0.4 ounces. Suppose that the manufacturer packages 30000 boxes with weights that have a normal dictribuutic nigh h
Q: A ski gondola carries to the top of a mountain. Assume that the weights of skiers are normally…
A:
Q: Suppose that the antenna lengths of woodlice are approximately normally distributed with a mean of…
A:
Q: The weights of adult California Condors average 14.8lbs with a standard deviation of 3.25lbs.…
A:
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: The scores on a standardized test are normally distributed with a mean of 115 and standa deviation…
A: Z = 2.2 , μ = 115 , σ= 15
Q: Suppose that weights of 3200 registered female great Danes in the United States are distributed…
A: Using normalised probability and z table
Q: A Coca-Cola machine in a McDonald’s store can be regulated so that it dispenses an average of ounces…
A: x =8 z = 2.33 Using standard normal table, P(Z > z) = 1% = 1 - P(Z < z) = 0.01 = P(Z < z…
Q: There is concern that increased industrialization may be increasing the mineral content of river…
A: Null hypothesis: µ ≤ 5. Alternative hypothesis: µ >5. Here, the sample mean, x-bar is 5.6.…
Q: The contents of 40 cans of Coke have a mean of 12.15 fl oz and a standard deviation of 0.09 fl oz.…
A: Given, mean, x= 12.15 fl oz standard deviation, σ = 0.09 fl oz population mean, μ = 12 fl oz X ~…
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: Given: Formula: Let "x" be the height of adult men
Q: The shelf life of a battery produ wd by one major company is known to be Normally distributed, with…
A:
Q: The average length of service for the employees at a company is 9.3 years with a standard deviation…
A: Average=mu=9.3 , Standard deviation=sigma=4.2 , Z-score=Z=1.6 Let X=Length of service…
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: The life of sunshine CD players is normally distributed with mean of 4.9 years and a standard…
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 farmer grows a particular type of apple which have normally distributed weights with a mean of 150…
A: It is given that, A farmer grows a particular type of apple which have normally distributed weights…
Q: Suppose that the antenna lengths of woodlice are approximately normally distributed with a mean of…
A: Given data: Mean = 0.22 inches Standard deviation = .05 inches To find: What proportion of woodlice…
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: 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: An air filter is rated to catch 90% of airborne particles. If the average particle diameter is 0.5…
A: For the distribution of the size of the particles (in microns), the parameters are given as…
Q: The monthly income from a particular occupation is normally distributed, with a mean of 3800 dollars…
A: Given,mean(μ)=3800standard deviation(σ)=500
Q: Suppose that the creatine kinase levels among healthy males are normally distributed with a standard…
A: Let, X=the creatine kinase levels among healthy males Given that X follows a normal distribution…
Q: A Christmas tree light has an expected life of 200 hr and a standard deviation of 3 hr. Suppose…
A: Given that μ=200 and σ=3. The distribution of the lifetime of Christmas tree light is unknown.
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 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: a life time of a certain brand of tires is approximately normally distributed with a mean of 42,500…
A: Given information- Population mean, µ = 42,500 miles Population standard deviation, σ = 3200 miles…
Q: The lifetime of a light bulb is normally distributed with an average life of 500 hours and a…
A: Define the Random Variable, X : Life time of a light bulb. Given that , X ~ N(500,1002 ) So, Z = X…
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: The times of first failure of a unit of a brand of ink jet printers are approximately normally…
A: Given that μ=1500σ=200
Q: he average age of vehicles registered in the United 96 months. Assume the population is normally…
A: Given: μ=96, σ=15, n=36 Calculate the corresponding z scores as:
Q: Suppose that the creatine kinase levels among healthy males are normally distributed with a standard…
A: From provided information, creatine kinase levels among healthy males are normally distributed with…
Q: Suppose that the antenna lengths of woodlice are approximately normally distributed with a mean of…
A: Given,mean(μ)=0.25standard deviation(σ)=0.05
Q: Ann thinks that there is a difference in quality of life between rural and urban living. She…
A: Rural town:Sample size Sample mean Sample standard deviation Urban town:Sample size Sample mean…
Q: adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: Answer:- Given that the adult men have heights with a mean (μ) = 69.0 inches. a…
Q: A particular fruits weights are normally distributed, with a mean of 797 grams and a standard…
A: Let us assume X= weight of a particular fruit Given that X follows a normal distribution with mean=…
Q: A clinic took temperature readings of 250 flu patients over a weekend and discovered the temperature…
A: Given that Mean =101.10 °F Standard deviation =0.9070 °F Sample size =250 We have to find a..The…
Step by step
Solved in 2 steps with 2 images
- One of the measurements used to determine the health of a person's lungs is the amount of air a person can exhale under force in one second. This is called forced expiratory volume in one second, and is abbreviated FEV,. Assume the mean FEV, for 10-year-old boys is 2.1 liters that the population standard deviation is o =0.2. A random sample of 53 10-year-old boys live in a community with high levels of ozone pollution are found to have a sample mean FEV, of 2.09 liters. Can you conclude that the mean FEV, in the high-pollution community differs from 2.1 liters? (A) Yes (B) NoAccording to the World Health Organization, the average height of a one-year-old child is 29". You believe children with a particular disease are smaller than average, so you draw a sample of 20 children with this disease and find a mean height of 27.5" and a sample standard deviation of 1.5". The test statistic is -4.4721 and the p-value is 0.00013 using the calculator function TTEST. If a=0.05, what conclusions can be made? Provide a detailed conclusion including contextualization to the given scenario.A certain grade egg must weigh at least 2.0 Oz. If the weights of eggs are normally distributed with a mean of 1.5oz. And a standard deviation of 0.4oz, approximately how many eggs would you expect to weigh more than 2oz?
- Suppose that the heights of adult women in the United States are normally distributed with a mean of 64.5 inches and a standard deviation of 2.2 inches. Lena is taller than 90% of the population of U.S. women. How tall (in inches) is Lena? Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place.Consider a normally distributed population with a mean of 196 and a standard deviation of 20. Find the value from this population that gives the 0.195 percentile. (Please round your answer to one decimal place, e.g. 0.6.)Suppose that the creatine kinase levels among healthy males are normally distributed with a standard deviation of 22 unitsL . Research shows that exactly 5% of the healthy males have a creatine kinase level above 153 unitsL . What is the mean creatine kinase level in healthy males? Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place.
- Suppose the mean number of candies in a standard vending machine bag is 47.6 with a standard deviation of 1.3 . assume that the number of candies is normally distributed what percentage of bags have less than 45 candies?Assume that the mean height of men in the United States is 70 inches, with a standard deviation of 3 inches. A particular man is 80 inches tall. Find the z-score of his height. (Round to two decimal places.)Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the z- score of a man who is 64.3 inches tall. (to 4 decimal places) 249.04
- The average life span of one particular brand of refrigerator is 12 years with a standard deviation of 0.8. Find the percentage of the refigerators that last between 10 and 14.5 years. O 99.3% 99.9% 95.9% 97.8% ▶Based on a sample of 50 US citizens, the American Film Institute found that a typical American spent around 78 hours watching movies. The standard deviation of the sample is 9 hours. Develop a 95% CI for the population mean number of hours spent watching TV last year. Interpret the interval found. How large a sample should be used to be 90% confident that the sample mean is within 1 hour of the population mean?Suppose that the antenna lengths on woodlice are approximately normally distributed with a mean of 0.22 inches in a standard deviation of 0.05 inches. What proportion of woodlice have antenna lengths that are less than 0.15 inches? Round your answer to at least four decimal places.