The mean height of 15 to 18-year-old males from Chile from 2009 to 2010 was 170 cm with a standard deviation of 6.28 cm. Male heights are known to follow a normal distribution. Let X = the height of a 15 to 18-year-old male from Chile in 2009 to 2010. Then X ~ N(170, 6.28). Suppose a 15 to 18-year-old male from Chile was 176 cm tall from 2009 to 2010. The z-score when x = 176 cm is z =  ?(round to nearest hundredth). This z-score tells you that x = 176 cm is      standard deviations to the    (right or left) of the mean of ______  .

Q: The times that NSU students spend studying per week have a distribution that is skewed to the right…

A:

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A: It is given that n=8, x=529.5, s=178 and μ=433.99. The degree of freedom=n-1=8-1=7

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A:

Q: According to a recent survey, Americans were expected to spend an average of 985.50 hours watching…

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Q: In a sample of 14 randomly selected high school seniors, the mean score on a standardized test was…

A:

Q: A nicotine contents of a certain brand of cigarette shows that on the average one cigarette contains…

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A: Given information: n=6x¯=546.20s=187.00μ=430.69 t value: t=x¯-μsn  =546.2-430.691876  =1.513

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A:

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A:

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A:

Q: The line width for semiconductor manufacturing is assumed to be normally distributed with a mean of…

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A:

Q: In a random sample of 7 cell​ phones, the mean full retail price was ​$539.80 and the standard…

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Q: In a sample of 14 randomly selected high school seniors, the mean score on a standardized test was…

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A:

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Q: A sample of 100 resistors has an average resistance of 50 Ω and a standard deviation of 5 Ω. A…

A: Given that, A sample of 100 resistors has an average resistance of 50 Ω and a standard deviation of…

Q: he pregnancy length in days for a population of new mothers can be approximated by a normal…

A:

Q: The mean score on a driving exam for a group of driver’s education students is 76 points, with a…

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Q: In a random sample of 8 cell phones, the mean full retail price was $549.30 and the standard…

A:

Q: In a random sample of 7 cell phones, the mean full retail price was $537.40 and the standard…

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A:

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A: A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.