Q4) The mean weight of 800 male students at a certain college is 70kg and the standard deviation is 10kg assuming that the weights are normally distributed find how many students weigh i) Between 60 and 78kg i) more than 82kg.
Q: Assume that females have pulse rates that are normally distributed with a mean of u= 74.0 beats per…
A: Given dataμ=74σ=12.5If n=25P(67<X<81)=?
Q: Assume that females have pulse rates that are normally distributed with a mean of m = 76.0 beats per…
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Q: . Given that the distribution of salaries of salesman is not normally distributed. However from past…
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Q: Assume that females have pulse rates that are normally distributed with a mean of u = 74.0 beats per…
A: From the provided information, Mean (µ) = 74.0 Standard deviation (σ) = 12.5 X~N (74.0, 12.5)
Q: Assume that females have pulse rates that are normally distributed with a mean of u = 76.0 beats per…
A:
Q: Assume that females have pulse rates that are normally distributed with a mean of u = 75.0 beats per…
A: 11 b. It is been asked to find the probability that 4 adult females have a mean pulse rate of less…
Q: Assume that females have pulse rates that are normally distributed with a mean of u-750 beats per…
A: Let X is the pulse rates. X~Normalμ=75.0,σ2=12.52
Q: Assume that females have pulse rates that are normally distributed with a mean of u = 75.0 beats per…
A: Given: Pulse rates = X X follows Normal distribution with mean 75 beats per minute and standard…
Q: The heights of students from a certain school are normally distributed wit mean 106 cm and standard…
A: Given data,μ=106σ=8P(X<x)=25.14%P(X<x)=0.2514
Q: Assume that females have pulse rates that are normally distributed with a mean of u = 74.0 beats per…
A: Given data,μ=74σ=12.5If n=4P(70<X<78)=?
Q: Assume that females have pulse rates that are normally distributed with a mean of u = 73.0 beats per…
A:
Q: Assume that females have pulse rates that are normally distributed with a mean of μ=73.0 beats per…
A: It is given that the mean and standard deviation are 73.0 and 12.5, respectively.
Q: Assume that females have pulse rates that are normally distributed with a mean of u = 72.0 beats per…
A: Given: μ=72.0σ=12.5 a. The probability that a randomly selected female female has pulse rate less…
Q: Assume that the height of AUM male students are normally distributed with a mean of 165 cm and a…
A: As per our guidelines we are suppose to answer only first three subpartsGivenMean(μ)=165standard…
Q: Assume that females have pulse rates that are normally distributed with mean of u = 73.0 beats per…
A: Given Information: Mean, μ=73 Standard Deviation, σ=12.5
Q: Assume that females have pulse rates that are normally distributed with a mean of μ=75.0 beats per…
A: a.) Let X be the random variable representing the female pulse rate. Here, X~N( μ=75.0, σ2 =12.52).…
Q: Assume that females have pulse rates that are normally distributed with a mean of u=72.0 beats per…
A: Sampling Distribution of a Normal Variable : Given a random variable X. Suppose that the population…
Q: Assume that females have pulse rates that are normally distributed with a mean of p=75.0 beats per…
A: 1) c) Since the original population has a normal distribution, the distribution of a sample means…
Q: Assume the amount of weight is normally distributed with a mean = 1.2 kg and standard deviation of…
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Q: Assume that females have pulse rates that are normally distributed with a mean of μ=72.0beats per…
A: Given data, μ=72 σ=12.5
Q: Assume that females have pulse rates that are normally distributed with a mean of u= 76.0 beats per…
A: Solution: a. Let X be the females pulse rate. From the given information, X follows normal…
Q: Assume that females have pulse rates that are normally distributed with a mean of u = 74.0 beats per…
A: a. The random variable X is defined as the pulse rate. The probability that her pulse rate is less…
Q: Assume that females have pulse rates that are normally distributed with a mean of u = 75.0 beats per…
A: We have to find given probability..
Q: You want to estimate u, the mean number of days between when a female squabbit is born, and when she…
A: Here, sample size is 25. Sample mean = 407. Standard deviation is 52. The sample size, n is 25.…
Q: Assume that females have pulse rates that are normally distributed with a mean of μ=72.0 beats per…
A:
Q: Assume that the readings on the thermometers are normally distributed with a mean of 0 degrees and…
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Q: Assume that females have pulse rates that are normally distributed with a mean of = 76.0 beats per…
A:
Q: Suppose that the mean number of weekly hours worked by South African women is 35.6 hours, with a…
A: Given: Population mean (μ)=35.6 Population standard deviation (σ)=10.1
Q: The average amount of money spent for lunch per person in the college cafeteria is $6.45 and the…
A: The probability that this patron's lunch cost is between $6.0536 and $6.4358 is,
Q: Assume that females have pulse rates that are normally distributed with a mean of u = 75.0 beats per…
A: According to the provided information, Mean (μ) = 75 Standard Deviation (σ) = 12.5 Sample Size (n) =…
Q: Assume that females have pulse rates that are normally distributed with a mean of u = 73.0 beats per…
A: Given that, Mean = 73 Standard deviation = 12.5
Q: Assume that females have pulse rates that are normally distributed with a mean of u= 74.0 beats per…
A: According to the given information, we have Mean = 74.0 Standard deviation = 12.5
Q: Assume that females have pulse rates that are normally distributed with a mean of u = 76.0 beats per…
A: Given information- Population mean, µ = 76 beats per minute Population standard deviation, σ = 12.5…
Q: Assume that females have pulse rates that are normally distributed with a mean of u= 74.0 beats per…
A: Given that, Mean = 74 Standard deviation = 12.5
Q: that the standard deviation of the distribution of times that Americans spent watching television in…
A: Given : population mean , u = 985.50 population standard deviation , σ = 285.20
Q: Assume that females have pulse rates that are normally distributed with a mean of u= 75.0 beats per…
A: Draw the normal curve and shade the area to the left of z=0.24. Refer to Standard normal…
Q: The masses of 250 students are normally distributed with mean 65kg and standard deviation 4kg. Then…
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Q: The mean score on a driving exam for a group of driver’s education students is 76 points, with a…
A: From the provided information, Mean (µ) = 76 Standard deviation (σ) = 6 X~N (76, 6) Here X be a…
Q: Assume that females have pulse rates that are normally distributed with a mean of μ=73.0beats per…
A: Given : Assume that females have pulse rates that are normally distributed with a mean of…
Q: Assume that females have pulse rates that are normally distributed with a mean of u = 76.0 beats per…
A: Given Data Population Mean,μ = 76.0 Population Standard Deviation,σ = 12.5
Q: (b) Suppose that a doorway being constructed is to be used by a class of people whose heights are…
A: Solution
Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…
A: we want to find values for given data
Q: 6. The mean weight of 200 people is 67kg and the standard deviation is 7kg. Assuming that the…
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Q: Assume that an adult fomale is randomly selected. Suppose females have pulse rates that are normally…
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Q: If the masses of 300 students are normally distributed with mean 68 kgs and standard deviation 3…
A: Given data The masses of 300 students are normally distributed with mean 68 kgs and standard…
Q: Assume that femaies have pulse rates that are normally distributed with a mean of u = 76.0 beats per…
A: Given that mu =76 , sigma =12.5
Q: Assume that females have pulse rates that are normally distributed with a mean of p= 76.0 beats per…
A: According to the provided information, Mean (μ) = 76 Standard Deviation (σ) = 12.5 Sample Size (n) =…
Q: The standard deviation of pulse rates of adult males is more than 10 bpm. For a random sample of 130…
A: Null hypothesis: Alternative hypothesis:
Q: Assume that females have pulse rates that are normally distributed with a mean of 74 beats per…
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Q: n a medical examination, 300 people undergo a height measurement and were found out that the average…
A: Given Information: Mean μ=150 Standard deviation σ=19 N = 300 (a) To find the number of people with…
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- The time it takes to wash the dishes is uniformaly distributed between 8 minutes and 14 minutes. What is the probablity that washing dishes tonight will take me between 9 and 12 minutes?Assuming that workers' salaries in your company are uniformly distributed between $10,000 and $40,000 per year. Find the amount of money that 25% of the workers make more than that value?The weights of new born black bear cubs are uniformly distributed with minimum of 245 and maximum of 295 grams. Suppose that a random new born cub is selected. f. Find the probability that the cub weighs between 258.5 and 270.3 grams.
- A deck has "b" black cards and "y" yellow cards. Given that cards are drawn at a random fashion without replacement. Find the average where after drawing a black card it is immediately followed by a yellow cardIn a café, the manager wishes to estimate p, the proportion of customers who will order sandwich for their lunch. Suppose 30 out of 300 customers will order sandwich for their lunch. Find the probability that more than 40 customers will order sandwich for their lunch by using a suitable approximationTo compare the effectiveness of competing fertilizers on increasing radish size, researchers randomly divided 20 radish seeds of the same type into two groups of 10 and planted them. To one of the groups they applied Fertilizer A, and to the other, they applied Fertilizer B. Then they measured the radii of the radishes grown from the seeds in the two groups. The results of the experiment are shown in the tables. The mean radius for the group that was given Fertilizer A is (less,greater)than that for the group that was given Fertilizer B. The variability of the radii for the group that was given Fertilizer A is (less/greater)than that for the group that was given Fertilizer B. The data for both of the groups produces a (uniform, non-uniform) distribution.
- Suppose that the weight of an newborn fawn is Uniformly distributed between 2.1 and 3.2 kg. Suppose that a newborn fawn is randomly selected. Round answers to 4 decimal places when possible.Assume that the readings at freezing on a bundle of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested.If 4.8% of the thermometers are rejected because they have readings that are too high and another 4.8% are rejected because they have readings that are too low, find the two readings that are cutoff values separating the rejected thermometers from the others.interval of acceptable thermometer readings =_____________ °CFor SRSWOR (N,n), find the ratio estimator of population mean. Show that the estimator is biased.
- Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested.If 4.7% of the thermometers are rejected because they have readings that are too high and another 4.7% are rejected because they have readings that are too low, find the two readings that are cutoff values separating the rejected thermometers from the others.Interval of acceptable thermometer readings _________ °CEnter your answer as an interval (a,b) with 2-decimal place accuracy.The existing machine setting of a factory produces bearings with a diameter that is normally distributed with mean and standard deviation equal to 3.0005 cm and 0.0010 cm, respectively. Customer specifications require the bearing diameters to lie in the interval [2.998, 3.002]. Those outside the interval are considered scrap and must be re-machined. With the existing machine selling, what fraction of total production will not be considered scrap?The weights of students in a certain school are normally distributed with a mean weight of 66 kg. 10% have a weight greater than 70kg. What percentage of students weighs between 52kg and 66kg?