A process manufactures ball bearing with diameters that are normally distributed with mean 25.2 mm standard deviation of 0.078mm. Find the 25.0th percentile of the diameters?
Q: he ages of people living in a retirement community are normally distributed with a mean age of 68…
A: Let X denote the ages of people living in a retirement community and it follows normal distribution…
Q: A research team is measuring the air quality of different parts of a city. The measurements show…
A: From the provided information, for the distribution of the carbon monoxide concentrations in parts…
Q: The results of an LSAT exam are normally distributed with a mean of 150 and a standard deviation of…
A:
Q: The weights of adult California Condors average 14.8lbs with a standard deviation of 3.25lbs.…
A:
Q: The strength of 25 samples of steel was tested. The sample mean = 41.9 psi. The sample standard…
A: Given that,population mean(u)=43sample mean, x =41.9standard deviation, s =3.6number (n)=25
Q: What proportion of the ball bearings will meet the specification?
A: Let X denote the diameters of ball bearings. Given that X follows N(mean = 2.505, SD = 0.008), then…
Q: The mass of a particular fiberglass panel is normally distributed with mean of 66 kg and a standard…
A: Mean=66 kg Standard deviation =5 kg
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A:
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A:
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:
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: The Z-score: The Z-score of a random variable, X, with mean μ and standard deviation σ, at the point…
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: Given that, Mean = 69.0 Standard deviation = 2.8 Raw score, X = 62.5
Q: Blood pressure is distributed Normally, with a mean of 85 mm and a standard deviation of 20 mm.…
A:
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A:
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: Given that Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8…
Q: Ball-Bearings, Inc. produces ball bearings automatically on a Kronar BBX machine. For one of the…
A: It is given that the mean is 20 and the standard deviation is 0.150.
Q: The diameters of red delicious apples of an orchard have a normal distribution with a mean of 3…
A: Let x be the continuous random variable and it said to follows normal distribution with mean μ and…
Q: The weight of newborn babies is normally distributed, with a mean of 3.7 kilograms and a standard…
A: GivenThe weight of new born babies are normally distributed.The mean =3.7 KgThe standard deviation…
Q: a male polar on average weighs 525 kg the population of standard deviation is 58 kg suppose that the…
A: Given information- Population mean, µ = 525 kg Population standard deviation, σ = 58 kg Let X be the…
Q: A pharmaceutical manufacturer forms tablets by compressing a granular material that contains the…
A:
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: We know that, if X has a random variable which follows Normal distribution i.e. X~N(69.0,2.82), then…
Q: Mean typing speed is 90 wpm, with a standard deviation of 18 wpm. What typing speed separates the…
A: Given,mean(μ)=90standard deviation(σ)=18
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: Mean(μ)=69.0standard deviation(σ)=2.8Man height (x)=72.4
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: Given that, Mean = 69.0 Standard deviation = 2.8 Raw score = 70.6
Q: The mean reach of the femaleemployees is 710 mm, with a standard deviation of 21 mm. The radius of…
A:
Q: The ages of people living in a retirement community are normally distributed with a mean age of 68…
A:
Q: The amount of weight on an ACME tractor trailer is known to have a normal distribution with mean 9.5…
A:
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: Let us assume that X= height of an adult man given that X follows a normal distribution with mean=…
Q: Blood pressure is distributed Normally, with a mean of 85 mm and a standard deviation of 20 mm.…
A: The objective of this question is to find the fraction of the population that has a blood pressure…
Q: In contrast, the mean adult female height in the Netherlands is 169 cm with a standard deviation of…
A: We have given that, Female hight is normally distributed with mean (mu) = 169, standard deviation…
Q: What sample size is needed so that the standard deviation of the sampling distribution is 0.01 grams…
A: Formula : σ_x̄ = σ/√n
Q: Heights of me are normally distributed with a mean of 176cm and a standard deviation of 7cm.what is…
A: here is given that, mean = 176 and standard deviation is 7 we will use z-standard normal…
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A:
Q: The thickness of a part is to have an upper specification of 0.925 and a lower specification of…
A:
Q: dult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: It is given that the mean is 69.0 and the standard deviation is 2.8.
Q: determine the number of bearings in a batch of 1200 likely (a)to fail before 1200 hours (b)to last…
A: here given , A type of bearing has an average life of 1500 hours and a standard deviation of 40…
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A:
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: Given,mean(μ)=69standard deviation(σ)=2.8and X=61.1
Q: The heights of students are normally distributed with mean 154 cm and standard deviation 26 cm. For…
A: Answer: From the given data, Let X denote the heights of students Mean (μ) = 154 Standard deviation…
Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: The mean is 69.0 and the standard deviation is 2.8.
Q: To run without causing damage, diameters of engine crankshafts for a certain car model must fall…
A: From the provided information,Mean (µ) = 224 mmStandard deviation (σ) = 0.03 mmTo run without…
Q: The annual per capita consumption of oranges (in pounds) in the United States can be approximated…
A: It is given that the mean and standard deviation are 19.2 and 4, respectively.
Q: The systolic blood pressure (given in millimeters) of males has an approximately normal distribution…
A: We have given that, X be the random variable from normal distribution with mean (μ)= 125 and…
Q: Last year, the revenue for financial services companies had a mean of 70 miliion doilars with a…
A: We first calculate the z score for given values and then find its corresponding probability from z…
Q: Body temperatures are from a Normal Distribution with a mean of ?? = 97.8° and a standard deviation…
A: Givenmean(μ)=97.8standard deviation(σ)=0.8z-score=-1.25
Step by step
Solved in 2 steps with 2 images
- 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 74.2 inches tall. (to 4 decimal places)A soft-drink machine is regulated so that it discharges an average of 200 mm/cup. If the amount of drink is normally distributed with a standard deviation equal to 15 mm, what fraction of the cups will contain more than 224mm?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 75.5 inches tall. (to 2 decimal places)
- The mean inside diameter of washers produced by a machine is 0.403cm and the standard deviation is 0.005cm. Washers with an internal diameter less than o.397cm or greater than 0.406cm are considered defective.what is the percentage of the washers produced are defective,assuming the diameter are normally distributed?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 63.4 inches tall. (to 2 decimal places)The diameters of bolts produced in a machine shop are normally distributed with a mean of 5.79 millimeters and a standard deviation of 0.07 millimeters. Find the two diameters that separate the top 7% and the bottom 7%. These diameters could serve as limits used to identify which bolts should be rejected. Round to the nearest hundredth if necessary.
- The finished inside diameter of a piston ring is normally distributed with a mean of 10 cm and a standard deviation of 0.03 cm. Below what value of inside diameter will 15% of the piston rings fall?A manufacturing process produces a critical part of average length 80 millimeters, with a standard deviation of 3 millimeters. All parts deviating by more than 5 millimeters from the mean must be rejected. What percentage of the parts must be rejected, on average? Assume a normal distribution.Steel rods are manufactured with a mean length of 26centimeter (cm). Because of variability in the manufacturing process, the lengths of the rods are approximately normally distributed with a standard deviation of 0.05 cm. Complete parts (a) to (d). (a) What proportion of rods has a length less than 25.9cm?
- 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 61.7 inches tall. (to 2 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 63.4 inches tall. (to 2 decimal places)a sugar company packages sugar in 5kg bags. the amount of sugar per bag varies according to a normal distribution. a sample of 25 bags is selected from the days production and the mean for the day is 4.98 kg and the standard deviation is 0.05 kg. ( use 1-a= 0.95 ) the margin of error for the amount of sugar is?
