# Quiz8 - PostLecture,Question1 thesamplemean thesample size...

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Post-Lecture, Question 1 The point estimate of the population mean is __________. the sample mean the sample  size the sample proportion the sample variance Post-Lecture, Question 2 In the estimation of the population mean when the population    is known, to construct a confidence  interval for a level of confidence equal to 95%, we use  z  values that leave out, in the lower and the  upper tails of the normal distribution, an area equal to __________. 0.05 0.95 0.025 0.01 Post-Lecture, Question 3 If the samples of small size,  n , (say  n  = 10) are drawn from a normally distributed population the  distribution of the sample means is distributed approximately as a __________. normal distribution non-normal distribution

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skewed distribution binomial  distribution Post-Lecture, Question 4 t -distribution is similar the  z -distribution except that __________. it is not
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Quiz8 - PostLecture,Question1 thesamplemean thesample size...

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