which has the smallest standard deviation? 1) 2) 2) 4) 5) They are all equal it can't be determined
Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…
A: Answer: Given that: ‘x’ is Normally distributed with Mean µ =29.15 standard…
Q: A cab company has computed its mean fare to be $33.00, with a standard deviation of $4.10. Suppose…
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Q: From a sample with n=32, the mean number of televisions per household is 4 with a standard deviation…
A: Chebyshev’s rule can be used for the large set data. It says that at least 1-1/k2 percentage of the…
Q: Assume the random variable X is normally distributed with a mean of μ=62 and a standard deviation of…
A: Assume the random variable X is normally distributed with a mean of μ=62 and a standard deviation of…
Q: Assume that women's weights are normally distributed with a mean given by u = 143 Ib and a standard…
A: The provided information are: Population mean (µ) =143 Population standard deviation (σ) = 29…
Q: (a) To reduce the standard deviation of the binomialdistribution by half, what change must be made…
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Q: Assume that blood pressure readings are normally distributed with a mean of 120 and a standard…
A: Given that the random variable of blood pressure readings is normally distributed with mean of 120…
Q: In a sample size of 30, selected from a left-skewed population, the sample mean is 25 with a…
A: Given : n=30 , X-bar=25 , s=12 , μ0=22 Assume that , α=0.05 Here , you would use the t-test…
Q: The Bureau of Labor Statistics reported that 16% of U.S. non-farm workers a government employees. A…
A: Here, n = 65 and p = 0.16.
Q: Find the mean and standard deviation for the number of girls in groups of 14 births when p = 0.5* O…
A: Given that , n=14 and p= 0.5 i.e. q=1-p = 1-0.5 = 0.5 We have to find mean and standard deviation…
Q: A perfume company wants to test whether the average amount of perfume per bottle is 16 ounces. The…
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Q: It is reported that the average American eats out at a restaurant 5.9 times per week. A random…
A: We have given that, Population mean (u) = 5.9, population standard deviation (o) = 1.7, sample size…
Q: If X is binomial with n=10 and p = .4 then the standard deviation of X is?
A:
Q: From a sample with n=16, the mean number of televisions per household is 4 with a standard…
A: Solution: Let X be the number of televisions per household. From the given information, n=16, σ=1…
Q: If the average low temperature of a winter month in Kansas is 19∘ and the standard deviation is…
A: Given Mean=μ=19, σ=3.9, P(14.71<X<23.29)=?
Q: 23. Make a conjecture about the relationship between og, ox, and N, where az is the standard…
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Q: The average time to be served at a diner is 12 minutes with a standard deviation of 3 minutes For a…
A: Given dada, Mean=12 Stand.devia=3.
Q: Assume that females have pulse rates that are normally distributed with a mean of u= 73.0 and a…
A: Let X be the pulse rate of the females. Then X follows normal distribution with mean µ=73.0 and…
Q: Assume that women's weights are normally distributed with a mean given by u = 143 lb and a standard…
A: Let X be the weight of a randomly selected women. X~N(143 lb, 292lb) (a) P(X>174)…
Q: e of the test statistic for a test with a null hypothesis that mu = 98.6, Xbar = 99.4, the sample…
A: As the sample standard deviation is only known, we will use t test. The test statistic is calculated…
Q: A nutritionist dlaims that the mean tuna consumption by a person is 3.7 pounds per year. A sample of…
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Q: 8. Claim: The standard deviation of pulse rates of adult women is at least 50. For the random sample…
A: Solution: 8. a. Let σ be the standard deviation of pulse rates of adult women.
Q: From a sample with n= 32, the mean duration of a geyser's eruptions is 3.61 minutes and the standard…
A: Given that, n= 32 ,μ=3.61σ=1.11 The formula of k is, The value of k is,
Q: From a sample with n=36 the mean duration of a geyser's eruptions is 3.21 minutes and the standard…
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Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…
A: Given: Mean μ=$28.62 Standard deviation σ=$3.80 Chebyshev's Theorem: PX-μ<kσ≥1-1k2
Q: n pulse rate (in beats per minute) of adult males is equal to 69 bpm. For a random sample of 164…
A: As the population standard deviation is not known, we will use t distribution.
Q: Find the mean deviation about the A.M. of each of the following distributions : 2,4,6,8,10,12,14,16
A: Mean of the given data=Sum of all termsTotal Number of terms x=2+4+6+8+10+12+14+168=728=9
Q: To find out whether the inhabitants of two SouthPacific islands may be regarded as having the same…
A: Introduction: Denote μ1, μ2 as the true population mean cephalic index values for the first and…
Q: Suppose that 31% of all births in a certain region take place by Caesarian section each year. a. In…
A: Let p be the probability that a birth is taken place by Caesarian section. Given that p = 0.31 Let X…
Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…
A: According to Chebyshev's inequality at least 1-1k2 proportion of the data lie within μ±kσ values of…
Q: n a small factory producing bamboo products, the standard acceptable measurement for a bamboo…
A: Lengths are between 10.85 cmand 12.075 cm SD = Standard Deviation 6% of the straws are rejected…
Q: Claim: The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm. For a random…
A: Given Claim : The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm.…
Q: In using cusum chart with n=1, the process standard deviation should be estimated in a way similar…
A: Since we have to model standard deviation in cusum chart, we can use Xbar and S charts.
Q: A population has a mean of 80 and a standard deviation of 8. Ai ralue is ndom sa O A. None of the…
A: As the sample size is higher than 30 it can be said that the distribution follows a normal…
Q: Suppose a set of test scores is appproximately bell-shaped, with a mean of 68 and a range of 60.(a)…
A: a). It is given that the test scores are approximately bell shaped with mean 68 days and range of…
Q: 4. In a test of Ho: u = 80 against Ha: u # 80, a sample of observations had a mean and standard %3D…
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Q: A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to…
A: A. Suppose X is a random variable with expectation, μ and standard deviation, σ. Then, for any…
Q: From a sample with n = 16, the mean number of televisions per household is 4 with a standard…
A: Chebyshev's theorem and empirical rule are used to calculate the percentages of data lies within…
Q: a- using the expected value method, b- using the standard deviation c-using Coefficient of variation…
A: a) Alternative A E[X]=0.2*30,000+0.5*25,000+0.3*20,000 =24,500 Alternative B…
Q: Claim: The standard deviation of pulse rates of adult males is less than 11 bpm. For a random sample…
A: Given that Claim : The standard deviation of pulse rates of adult males is less than 11 bpm Random…
Q: For a population with o = 12, how large a sample is necessary to have a standard error that is less…
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Q: From a sample with n 36, the mean duration of a geyser's eruptions is 3.82 minutes and the…
A: Solution-: Given: μ=3.82,σ=0.72,n=36 Here, Lower Limit=1.16, Upper Limit=5.98
Q: For a population with o = 12, how large a sample is necessary to have a standard error that is less…
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Q: Is the difference between the mean annual salaries of registered nurses in State A and State B equal…
A: Given; x¯1=75695 x¯2=70695n1=30 n2=25σ1=8337…
Q: Suppose that the mean cranial capacity for men is 1190 cc (cubic centimeters) and that the standard…
A: Empirical rule (68-95-99.7 rule): About 68% of data lies within the one standard deviation of the…
Q: A sample obtained from a population with σ = 48 has a standard error of σM = 6. How many scores are…
A: Given that, Standard deviation = 48 Standard error = 6
Q: Apply Chebyshev’s rule with k = 3 to verify that at least 89% of the observations in any data set…
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Q: 5. For a population with a standard deviation of o = 20, how large a sample is necessary to have a…
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Q: 1. In a medical examination, 300 people undergo a height measurement and was found out that the…
A: Given Information: 300 people undergo a height measurement and was found out that the average height…
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- Compute for the ample staandard deviationThe central limit theorem states that if all possible random samples of sizeNare drawnfrom a population with a mean ofμ ̄Xand a standard deviation ofσ ̄X, then asNbecomeslarger, the sampling distribution of sample means becomes approximately (_______) with a mean of (______) and a standard deviation of (______). Fill in the blanksA. 76% of sunflower seeds will germinate into a flower, and a sample of 800 such sunflower seeds is randomly selected. The mean for the number of sunflower seeds in such samples of size 800 is? B. The standerd deviation for the number seeds in such sample of size 800 is?
- If the average low temperature of a winter month in Kansas is 19∘ and the standard deviation is 3.9∘, then according to Chebyshev's theorem, the percentage of average low temperatures in Kansas between 14.71∘ and 23.29∘ is at least ___A land surveyor measured the distance between two points repeatedly and found that themean value is 1,000 feet and the standard deviation is 0.5 feet. What is the upper bound ofthe probability that subsequent measurements of the same distance will give values greaterthan 1,005 feet or less than 995 feet?For a population with σ = 12, how large a sample is necessary to have a standard error that is less than 2 points? n > ?
- The one-way commuting times from home to work for all employees working at a large company have a mean of 34 minutes and a standard deviation of 8 minutes. a. Using Chebyshev's theorem, find the minimum percentage of employees at this company who have one-way commuting times in the following intervals. i. 14 to 54 minutes ii. 18 to 50 minutes b. Using Chebyshev's theorem, find the interval that contains one-way commuting times of at least 89% of the employees at this company.A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to be $28.54 , with a standard deviation of $ 4.91. Based on this information, complete the following statements about the distribution of the company's fares from O'Hare Airport to the Drake Hotel. A. According to Chebyshev's theorem, at least ___%? of the fares lie between $18.72 dollars and $38.36 dollars. B. According to Chebyshev's theorem, at least 56% of the fares lie between _? dollars and _? dollars. (Round your answer to 2 decimal places.)