a data set has a mean of 210 and a standard deviation of 40, what is the z- Score for a ralue of140 If
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A: From the empirical rule
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A: Population mean, μ=81 population standard deviation, σ=5.2 The formula of z-score is, z=x-μσ…
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A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…
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A: In statistics, the empirical rule says that for normal distribution, 68%, 95%, and 99.7% of the…
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Q: Consider a data set that has a mean of 17 and a standard deviation of 5.7. According to Chebyshev's…
A: Chebyshev's Theorem: Let X be an integrable random variable with finite expected value μ and finite…
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A: Given, Population mean µx=600 pounds Population standard deviation σx=70 pounds a. Assuming that the…
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A: It is given that that µ=63 mile per hour. Obtain the standard deviation of the speeds of all cars:
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Q: If in a data set the observation 78 has z-score equal -0.60 and the observation 88 has z- score…
A:
Q: Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2500 grams and…
A: Given,mean for a babies born after 32 to 35 weeks=2500 gramsstandard deviation(σ)=500 gramsBabies…
Q: A data set has a mean of 300 and a standard deviation of 40. What value would have a z-score of z =…
A: z-score of z = - 2 is -7.55 Reason: z-score of z = - 2=-2-meanstandard deviation=-2-30040=-7.55
Q: A set of test papers is normally distributed with a standard deviation of 5. If Riley scored an 83…
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Q: if you got a 79 on a test in a class with a mean score of 85 ans standard deviation of 5, the z…
A: If mean score of 85 ans standard deviation of 5, then Z-score corresponding to given raw score is…
Q: Suppose that in a given semester, the MEAN of units taken by students at Delta is 17 and has a…
A:
Q: A class has an average height of 68 inches and a standard deviation of 2 inches. Find each value,…
A: For the given data Mean μ = 68 inchesStandard deviation σ = 2 inches
Q: A livestock company reports that the mean weight of a group of young steers is 1300 pounds with a…
A: It is an important part of statistics. It is widely used.
Q: A set of data items is normally distributed with a mean of 80 and a standard deviation of 9 .…
A: Given A set of data is normally distributed with mean of 80 and standard deviation of 9 and x=71.so,…
Q: the length of a certain species of fish were found to be normally distributed. the mean length is 72…
A: Any assumption about the parameter or probability function is called a hypothesis. Given data are…
Q: A population has a mean of 50 and a standard deviation of 20. Would a score of x=70 be considered an…
A: The mean and standard deviation are 50 and 20.
Q: A manufacturer of calculator batteries claims that the mean length of life for its battery is 500…
A: The empirical graph is, The random variable X is defined as the length of life for its battery. The…
Q: Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 3000 grams and…
A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…
Q: Would lun ne IS! 12. Antonio's height is 1 standard deviation below the mean for boys his age. If…
A: Antonio's height is 1 standard deviation below the mean for boys his age. The heights of boys are…
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A:
Q: The speeds of cars traveling on UK motorways are normally distributed with mean 96 kilometers per…
A: We have given that. X~N( μ , ?^2 ) μ =96 , ? = 10 Z-score =( x - μ )/?
Q: A livestock company reports that the mean weight of a group of young steers is 1150 pounds with a…
A: μ=1150σ=87 =P1050<x<1250
Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 260 days…
A:
Q: The score on a test have a mean of 100 and standard deviation of 15. If a personnel manager wishes…
A: From the given information we find the cut off score.
Q: If the mean I.Q. is 100 and the standard deviation of I.Q. scores is 15, then an I.Q. of 130 will…
A:
Q: For a normally distributed population with a mean of 35 and a standard deviation of 7.5, what value…
A: X follows a Normal distribution with mean = 35 and S.D = 7.5 Then z=(x-mean)/SD = (x-35)/7.5…
Q: The data set has 150 observations and has mean 35 and standard deviation 4. Approximately how many…
A:
Q: A group of patients has a mean height of 160 cm and a standard deviation of 10 cm. What standard…
A: Determine the standard score that would cut off the lowest 50% of scores. The standard score that…
Q: A manufacturer of calculator batrries claims that the mean length of life for its battry is 500…
A:
Q: The data set has size 90. Approximately how many observations lie within two standard deviations…
A: The Empirical Rule states that 99.7% of data observed following a normal distribution lies within 3…
Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 263 days…
A: Solution-: Given: μ=263 days, σ=13 days We want to find what range would you expect to find the…
Q: The data set has 200 observations and has mean 20 and standard deviation 4. Approximately how many…
A: It is given that the mean is 20 and the standard deviation is 4.
Q: the golf scores for a school team were normally with a mean of 68 and a standard deviation of 3. Use…
A:
Q: Suppose the weekly rent of international students in Sydney is normally distributed with a mean of…
A: Assume, X be the random variable which represents the amount of weekly rent in dollars. μ be the…
Q: A livestock company reports that the mean weight of a group of young steers is 1130 pounds with a…
A:
Q: Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2500 grams and…
A: Given that the mean of the gestation period of 32 to 35 weeks is 2500 and standard deviation is 800.…
Q: The heights of adult men in America are normally distributed, with a mean of 69.7 inches and a…
A: formula for z-score is
Q: A given set of data has a specific standard deviation. Describe what will happen to the standard…
A: Answer: The standard deviation of new data is remains same as original data. As a general rule, the…
Q: Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2800 grams and…
A: formula for z-score is
Q: The mear was 80 and the Standard deviation was 4, Kawhi scored 5, 8o his z-Score was more than one…
A:
Q: Here * denotes the lost values. If it was known that the mean of the marks was 56 and the standard…
A: The combined mean is given by
Q: A set of data with a mean of 45 and a standard deviation of 8.3 is n Find each value, given its…
A: A mean is 45 with standard deviation 8.3 normally distributed. μ=45σ=8.3
Q: A set of data items is normally distributed with a mean of 40 and a standard deviation of 6. Convert…
A: Given set of data is normally distributed with mean = 40Standard deviation = 6The Z score for any…
Q: The data set has size 80. Approximately how many observations lie within two standard deviations to…
A: Empirical rule: On a normal distribution about 68% of data will be within one standard deviation of…
Q: The weights of baby tortoises are approximately normally distributed with a mean of 25.6 ounces and…
A:
Q: A set of data items is normally distributed with a mean of 60 and a standard deviation of 9. Convert…
A:
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