Determine whether the following statements are true (T) or false (F). ____ Newton discovered the Normal...

Determine whether the following statements are true (T) or false (F).

____ Newton discovered the Normal Distribution.
_____ The Normal distribution is symmetric.
______ As sample size increases the T-distribution approaches the Normal distribution.
_____ The Central Limit Theorem allows us to use the the properties of the Sample Mean Random variable to infer information abot the population mean.
_____ The greater the confidence level the harder it is to reject the Null Hypothesis.
_____ When estimating population proportion a large sample size results in a less accurate estimate.
______ The Margin of Error is found by using the sample mean.
_______ The greater the sample size the greater the Margin of Error.
______The covariance of A with A is 0.
______ If X versus Y is linear then the correlation is 0.

Solutions

Expert Solution

____ Newton discovered the Normal Distribution. FALSE
_____ The Normal distribution is symmetric. TRUE . It is symmetric around the mean
______ As sample size increases the T-distribution approaches the Normal distribution. TRUE
_____ The Central Limit Theorem allows us to use the the properties of the Sample Mean Random variable to infer information about the population mean. TRUE
_____ The greater the confidence level the harder it is to reject the Null Hypothesis.TRUE
_____ When estimating population proportion a large sample size results in a less accurate estimate.FALSE. Larger the sample more accurate the result
______ The Margin of Error is found by using the sample mean. FALSE. Sample size and standard deviation
_______ The greater the sample size the greater the Margin of Error. FALSE.
______The covariance of A with A is 0. FALSE
______ If X versus Y is linear then the correlation is 0. FALSE . It is 1

orchestra answered 1 year ago

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