Q10P1B] Given a normal distribution with m = 83 and s^2 = 16, find the probability that X assumes a value less than 80 = more than 91 = between 71 and 85 =
Q: The length of certain bricks is a random variable with a mean of 8’ ’ and standard deviation of 0.1’…
A: Mean is calculated by adding all the observations involve in the sample or population then divide it…
Q: A certain breed of pigs has weights that are normally distributed with a mean of 280 pounds and a.…
A: Here we need to find the required probabilities.
Q: An astronomer wants to measure the distance from his observatory to a distant star. However, due to…
A: Given that an astronomer wants to measure the distance from his observatory to a distant star.…
Q: According to a random sample taken at 12 A.M., body temperatures of healthy adults have a…
A: Given body temperature of healthy adults have a bell shaped curve with mean 98.17oF and standard…
Q: A random sample of 16 students in the School of Economics and Finance was taken to estimate average…
A: Given that mean=87,s.d=22,n=16
Q: In a study of the life expectancy of 500 people in a certain geographic region, the mean age at…
A: The mean is 72.0 and the standard deviation is 5.3.
Q: The total amount spent on make-up by all the female students in a popular private university has a…
A: The normal distribution in the center is generally denser and basically less dense at tails. There…
Q: According to a random sample taken at 12 A.M., body temperatures of healthy adults have a…
A: From the provided information, Using the Chebyshev’s Inequality,
Q: The manager of a computer retails store is concerned that his suppliers have been giving him laptop…
A:
Q: Suppose the reaction times of teenage drivers are normally distributed with a mean of 0.53 seconds…
A:
Q: The average yearly Medicare Hospital Insurance Benefit per person was $4064 in a recent year. If the…
A: Given: Mean of yearly Medicare Hospital Insurance Benefit per person is $4064, that is, μ=4064.…
Q: A small jet can carry up to 43 passengers and 3 crew members. There is a weight restriction of 9200…
A:
Q: A random sample of 41 Japanese workers reported working 9.2 hours a day on average, with a standard…
A:
Q: l), and the standard deviation is 16.3 mg/dl. If a random sample of 35 overweight children is…
A: mean = 220 s = 16.3 n = 35
Q: find the number of applicants with scores less than 100.
A: Suppose that IQ’s of 1,200 applicants to a university are approximately normally distributed with a…
Q: The weight of a random person is normally distributed, with a mean of 62 kg and variance of 15 kg2.…
A:
Q: females have pulse rates that are normally distributed with a mean of 75.0 beats per minute and a…
A: Females have pulse rate normally distributed with mean of 75.0 beats per minute with standard…
Q: The average salary for graduates entering the actuarial field is $63000. If the salaries are…
A: It is given that the salary for graduates follows a normal distribution with mean $63,000 and…
Q: a) What is the probability that a person selected at random spends more than 60 minutes on social…
A: time spent follows normal with mean 75 mins and standard deviation of 10 mins A p(time spent >…
Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2.3…
A: Let "X" be the shortest lifespan of the items. Refer Standard normal table/Z-table, Lookup for…
Q: The distribution of resistance for resistors of a certain type is known to be normal with 10% of all…
A: Reviewing Information, let, X: The random variable resistance X~Nμ,σ2
Q: the diameters of pencils produced by a certain machine are normally distributed with a mean of 0.30…
A: We have given that, Machine are normally distributed with mean (mu) = 0.30 and standard deviation…
Q: The Welcher Adult Intelligence Test Scale is composed of a number of subtests. On one subtest, the…
A: Given Mean = 40 Standard deviation = 5 Z score = (x - mu )/s
Q: A certain assay for serum alanine aminotransferase (ALT) is rather imprecise. The results of…
A: Given Information : A certain assay for serum alanine aminotransferase (ALT) is rather imprecise.…
Q: A researcher wants to prove that a brand X size AAA battery can last shorter than brand Y. Two…
A:
Q: find the value of x to the right of which 15% of the means computed from random samples of size 9…
A: The average life of steam multi cooker is 7 years, with a standard deviation of 1 year. Assuming…
Q: The amount of orange poured into 7 ounce cups by a filling machine varies from cup to cup, and it…
A: We have given that. X~N( μ , ?^2 ) μ=? , ?=0.03 Z-score =( x - μ )/?
Q: The distribution of tips given by customers who buy one cup of coffee is bimodal with a mean of…
A: The distribution of tips given by customers who buy one cup of coffee is bimodal with a mean of…
Q: The mean serum cholesterol level of a large population of overweight children is 220 milligrams per…
A: The use of standard normal probability distribution table helps us in ascertaining the percentage of…
Q: The manager of a computer retails store is concerned that his suppliers have been giving him laptop…
A: Solution: Let X be the replace times for the model laptop of concern. From the given information, X…
Q: esting experiment, 25 subjects are selected randomly and their reaction time, in seconds, to a…
A: As the population variance, i.e., standard deviation is known, we will use the z test. The…
Q: The grade scored by Mehmet in a course is normally distributed with a mean of 50 and standard…
A: Given mean: μ=50 And standard deviation: σ=4 a). If the probability that Mehmet will pass from this…
Q: Birthweights are distributed Normally, with a mean of 3.39kg and a standard deviation of 0.55kg.…
A:
Q: The length of time it takes to fill an order at a XYZ sandwich shop is normally distributed with a…
A: From the provided information,The mean (µ) of the distribution is 7 minutes.The distribution of Xi…
Q: The IQ’s of 600 applicants of a certain college are normally distributed with a mean of 115 and a…
A: X be the IQ’s of 600 applicants of a certain college and X is normally distributed. X~Nμ,σ ;…
Q: The time for a certain female student to commute to SCSU is Normally Distributed with mean 32.5…
A: Given : X follows normal distribution. Mean(μ)=32.5 standard deviation (σ) =5.3
Q: Suppose that the shelf lige of Buko pies has a normal distribution with mean of 36 hours and a…
A: Let X denote shelf life of Buko pies. X~N36,5.76 size of sample= 25 P[X<36.5] =?…
Q: The distribution of tips given by customers who buy one cup of coffee is bimodal with a mean of…
A: We have given that the mean $0.29, standard deviation $0.1164 and sample size n is 50.
Q: Assume the population data in this scenario is normally distributed. a. What is the probability that…
A: Let X be the random variable from Normal distribution with mean (μ) = 120, standard deviation (σ) =…
Q: The body temperatures of adults are normally distributed with a mean of 98.6 degrees * F and a…
A:
Q: A recent study of the lifespan of wireless sound systems found the average to be 3.7 years with a…
A: Given, μ = 3.7, σ = 0.6n = 32 Now, Random sample of 32 people is selected so, now
Q: The sociologist finds that for a certain population, the mean number of years of educations is 13.2…
A: Let, X: The number of years of educations Given: Mean = μ = 13.2 years Standard deviation = σ =…
Q: A study shows in a certain school that the average number of hours a student answers his/her module…
A:
Q: The amount of time taken by a bank teller to serve a randomly selected customer has a normal…
A: The random variable amount of time follows normal distribution. The sample size is 2. The population…
Q: The mean weight of all Goliath grouper caught on the Treasure coast is 367 pounds, with a standard…
A: Given that mean =367,s.d =33,n =32
Q: () There is a 5% chance that the mean reading speed of a random sample of 20 second grade students…
A: Note: Hi! Thank you for the question. As you have specifically asked for help with part f, we have…
Q: The weight of an energy bar is approximately normally distributed with a mean of 42.90 grams with a…
A:
Q: The diameter of a brand of ping-pong balls is approximately normally distributed with a mean of 1.5…
A:
Q: Procter and Gamble reported that an American family of four washes an average of 2000 pounds of…
A: We have to find given probability.
[Q10P1B] Given a
- less than 80 =
- more than 91 =
- between 71 and 85 =
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- According to a medical study, it takes about 47.5 hrs, on average, for Roseola virus to fade away in infected patients (children). Assuming that the fading times of Roseola virus in infected patients are normally distributed with standard deviation 0.35, what's the probability of having a random case where the fading time of the virus in an infected patient is less than 47.85 hours? Find the answer without using the normalcdf(...) function.The flying time of a drone airplane has a normal distribution with a mean of 4.76 hours and a standard deviation of 0.04 hours. What is the probability that the drone will fly more than 4.80 hours?The average yearly Medicare Hospital Insurance Benefit per person was $4064 in a recent year. If the benefits are normally distributed with a standard deviation of $460, find the probability that the mean for a random sample of 20 patients is A. Less than $3800B. More than $4100
- The weights of newborn baby boys born at a local hospital are believed to have a normal distribution with a mean weight of 3899 grams and a variance of 461,041 If a newborn baby boy born at the local hospital is randomly selected, find the probability that the weight will be less than 4917 grams. Round your answer to four decimal places.The length of a human pregnancies is approximately normal distributed with mean m equals to 266 days and standard deviation of 16 days. what is the probability of randomly select a pregnancy lasts less than 260 days?The lifespan of a certain insect is believed to follow a normal distribution with a mean of98 days and a standard deviation of 1 week. Calculate the probability that an insect from this species will live for more than 84 days to 5 decimal places
- The blood glucose levels of Wistar rats measured 2 hours after eating (postprandial Blood Glucose-PBG) are approximately normally distributed with a mean of 5.65 mmol/L and a standard deviation of 1.63 mmol/L. If a Wistar rat is chosen at r, what is the probability that its PBG will be between 5 and 7 mmol/L?The average salary for graduates entering the actuarial field is $63000. If the salaries are normally distributed with a standard deviation of $5000, what is the probability that an individual graduate will have a salary over $67000?The time taken by the truck to deliver the package is a random variable with a normal distribution with a mean value of 75 hours and a standard deviation of 5 hours. Find the limits (bounds) symetric around the mean value, in which the driving time will be with probabilty of 90% .?
- The time that a skier takes on a downhill course has a normal distribution with a mean of 12.a minutes and standard deviation of 0.4a minutes. a= 1 What is the probability that on a random run this skier takes less than 10 minutes? What is the probability that on a random run this skier takes between 11 min and 14.6min?A recent study found that the average length of caterpillars was 2.8 centimeters with a standard deviation of 0.7 centimeters. Assuming that the lengths of all caterpillars is normally distributed, what is the probability that a randomly selected caterpillar will have a length longer than (greater than) 4.0 centimeters? P(x > 4.0 cm) = ___________ Type in your final decimal solution for the probability rounded to four decimal places.
