A study showed that females’ body temperatures are approximately normally distributed with a mean of 98.40F, and a population standard deviation of 0.700F. Find the female body temperature at the 90th percentile.
Q: a manufacturer claims that the mean lifetime of its fluorescent bulbs is 1050 hours. a homeowner…
A: Given n=40 Standard deviation =80 Xbar=1030 Level of significance=0.05 Mu0=1050
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A: Let X be the random variable for the number of ants in a group. Given that, X~N(μ=67.0, σ=83.64)…
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A:
Q: The weights of newborn baby boys are normally distributed with a mean of 3.33 kg and a standard…
A: GivenMean(μ)=3.33standard deviation(σ)=0.40
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A:
Q: The systolic blood pressure of 19-year-old women is normally distributed with a mean of 120 mmHg and…
A: According to the empirical rule,
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Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…
A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…
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: dult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…
A: Given: μ=69.0σ=2.8X=59.2
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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: Steel rods are manufactured with a mean length of 27 centimeter (cm). Because of variability in the…
A: Given,mean(μ)=27standard deviation(σ)=0.06
Q: study of a population showed that males' body temperatures are approximately Normally distributed…
A: We have given that the Mean=98.3, Standard deviations=0.60
Q: Birth weights are normally distributed with a mean of 7.5 pounds and a standard deviation of 1.5…
A: Solution-: Let, X-be the birth weights of baby's Given: \mu=7.5 pounds,\sigma=1.5pounds We find the…
Q: mean number of customers arriving at a restaurant during a 15-minute period is 9. Find the standard…
A: Given that : The mean number of customers arriving at a restaurant during a 15-minute period is 9.…
Q: Heights for 16-year-old boys are normally distributed with a mean of 68.3 in. and a standard…
A: Given information: μ=68.3, σ=2.9 The P-value for the 96th percentile = 0.96 Determine the z-score…
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: On a standardized exam, the scores are normally distributed with a mean of 550 and a standard…
A:
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 weights for 12-month-old baby boys are normally distributed with a mean of 22.5 pounds and a…
A: If the random variable X follows normal distribution with mean μ and standard deviation σ, then…
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 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: A household spends on average of P5,500 for a 2-week period grocery items. The variable is normally…
A: Given,mean(μ)=5500standard deviation(σ)=700
Q: A certain type of hen lays eggs whose weights are normally distributed with a mean of 66 grams and a…
A:
Q: The age distribution of a sample of 5000 persons is bell shaped with a mean of 40 years and a…
A: GivenMean(μ)=40standard deviation(σ)=12
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: On a standardized exam, the score are normally distributed with a mean of 300 and a standard…
A: X~N( μ , ?) μ=300 , ?=25 Z-score =( x - μ )/?
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: The heights of men aged 20 to 29 are normally distributed with a mean of 69.2 inches and a standard…
A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…
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A:
Q: A pediatrician obtains the heights of her 200 three-year-old female patients. The heights are…
A: The given mean is 37.8 and the standard deviation is 3.14.
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: The width of an A4 piece of paper is normally distributed with a mean of 210 mm and a standard…
A: The width of an A4 piece of paper is normally distributed with a mean of 210 mm and a standard…
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…
A study showed that females’ body temperatures are approximately
at the 90th percentile.
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- At one college, GPA’s are normally distributed with a mean of 3 and a standard deviation of 0.6. Find the 80th percentile.The lengths of a large stock of titanium rods follow a normal distribution with a mean (u) of 440 mm and a standard deviation (o) of 1 mm. What is the percentage of rods whose lengths lie between 438 mm and 441 mm?Assume that an adult female is randomly selected. Suppose females have pulse rates that are normally distributed with a mean of 72.0 beats per minute and a standard deviation of 14.1 beats per minute. Find P95, which is the pulse rate separating the bottom 95% from the top 5%.
- In a certain population, triglyceride levels are approximately normally distributed with a mean of 150 mg/DL and a standard deviation of 42 mg/DL. Health experts define a level of 200 mg/DL or more as being high (and unhealthy, presumably). What percentage of this population would be considered to have an unhealthy triglyceride level? On your own piece of paper, draw a diagram, calculate a z-score, show your calculator commands and write your answer as a decimal to four place values. For example, probability = 0.0334 Take a picture of your work and upload where indicated.On a standardized exam, the scores are normally distributed with a mean of 350 and a standard deviation of 20. Find the z-score of a person who scored 400 on the exam.The length of songs in the Big Hair playlist of a Statistics professor's mp3 player varies from song to song. This variation can be modeled by the normal distribution, with a mean song length of �=4.3 minutes and a standard deviation of �=0.65 minutes. (Note that a song that has a length of 4.5 minutes is a song that lasts for 4 minutes and 30 seconds.)The professor decides to shuffle the playlist, which means that the mp3 player will randomly pick a song within this particular playlist and play it next.(a) What is the probability that the next song to be played is between 3.9 and 4.85 minutes long? Answer to four decimals. (b) What proportion of all the songs in this playlist are longer than 5 minutes? Use four decimals in your answer. (c) 20% of all the songs in this playlist are at most how long, in minutes? Enter your answer to two decimals. minutes(d) There are 247 songs in the Big Hair playlist. How many of these would you expect to be longer than 5 minutes in length? Use two…
- The weight of potato chips in a large-size bag is stated to be 24 ounces. The amount that the packaging machine puts in these bags is believed to have a normal model with a mean of 24.2 ounces and a standard deviation of 0.12 ounces.On a standardized exam, the scores are normally distributed with a mean of 350 and a standard deviation of 20. Find the z-score of a person who scored 400 on the exam.Assume the average amount of caffeine consumed daily by adults is normally distributed with a mean of 260 mg and a standard deviation of 48 mg. In a random sample of 600 adults, how many consume at least 320 mg of caffeine daily?
- The amount of maple syrup made at local sugar shacks is normally distributed with a mean of 70.5 gallons and a standard deviation of 9 gallons. The standard z-score (rounded to two decimal places) corresponding to 82 gallons isOn a standardized exam, the scores are normally distributed with a mean of 160 and a standard deviation of 10. Find the z-score of a person who scored 163 on the exam.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 63.2 inches tall. round to 2 decimal places
