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 ii) 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…
A:
Q: Assume that females have pulse rates that are normally distributed with a mean of μ=72.0 beats per…
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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 = 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 μ=73.0 beats per…
A: It is given that the mean and standard deviation are 73.0 and 12.5, respectively.
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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
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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…
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A: From a sample with n=20, the mean number of televisions per household is 4 with a standard deviation…
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A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
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Q: From a sample with n=20, the mean number of televisions per household is 4 with a standard deviation…
A: From a sample with n=20, the mean number of televisions per household is 4 with a standard deviation…
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A: Given data,μ=15σ=4P(X<x)=0.975
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…
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Q: Assume that females have pulse rates that are normally distributed with a mean of μ=73.0 beats per…
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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…
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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: In a random sample of 7 cell phones, the mean full retail price was $548.40 and the standard…
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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: 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…
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Q: Assume that females have pulse rates that are normally distributed with a mean of u= 75.0 beats per…
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A: Here, mean is 75 and standard deviation is 10 points.
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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…
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A: Given data The masses of 300 students are normally distributed with mean 68 kgs and standard…
Q: Assume that females have pulse rates that are normally distributed with a mean of µ = 72.0 %3D beats…
A: Given X is normal Distributed with mean µ = 72.0 and standard deviation σ = 12.5 now will using…
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) =…
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A: Null hypothesis: Alternative hypothesis:
Q: Assume that females have pulse rates that are normally distributed with a mean of μ=74.0 beats per…
A: From the given information, Mean = 74 Standard deviation = 12.5
Q: Assume that females have pulse rates that are normally distributed with a mean of 74 beats per…
A:
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A: Given Information: Mean μ=150 Standard deviation σ=19 N = 300 (a) To find the number of people with…
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- In 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 approximationThe 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 card
- A water park has an 18-minute ride through man-made rapids and waterfalls. When the ride is in full operation, riding times for passengers are uniformly distributed between 0 and 18 minutes. Suppose an electrical problem leads to a temporary stoppage. What percent of the riders had been on the ride for less than 2 minutes when the stoppage occured? And what percent of the riders had been on the ride between 10 and 15 minutes when the stoppage occured?The mean weight of 1000 students at a certain high school is 140pounds and the variance is 100 pounds. Assuming that the weightsare normally distributed, how many students weigh:a. Between 120 and 145 pounds?b. More than 150 pounds?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.
- A company pays its employees an average wage of $22.50 an hour with a standarddeviation of $2.30. If the wages are approximately normally distributed and paid to thenearest centavos, what percentage of the workers receive wages between $20 and $23.50?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 =_____________ °CAssume 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.