Secure hittps//straighterline acrobatiq ve-assessmenysl stats.v1/u4,md checkpoin

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Secure hittps//straighterline acrobatiq ve-assessmenysl stats.v1/u4,md checkpoint2 Question 1 of 5 The length of human pregnancy is known to have mean length of 268 days. A random sample of 64 pregnant women was selected and it was found that the average pregnanc length in that sample was 266 days. Which of the following is a true statement about this scenario? o if a different random sample of 64 pregnant women were selected, the average pregnancy length in that sample would have to be also 266 days Both 268 and 266 are parameters Both 268 and 266 are statistrs 268 is a parameter and 266 is a statistic o The recorded sample average of 266 days is clearly a mistake it must be 268 days jusa like the population mean Question 2 of 5 Points Which of the following statements about the sampling distribution of the sample mean, x-bar,is not true? The sampling distribution is normat regardiess of the shape of the popdation distribution, as song as the sample size. n is large enaugh The sampling cistrbution s rormai regardiess of the sample sice, as long as the population dintribution is normal The sampling distribution's mean is the same as the popuilation mean The sampling distrioution's standard deation is smaller than the population standard deviation Al of the above statements are true The next two questions refer to the following information Type here to search

Explanation / Answer

Q1 is #4    268 is a parameter and 266 is a statistic.

Q2 is #5    All the above statements are true

Q3 is #4    Histograms 2,3,1

Q4 is #2    3.0

Q5 is #5     It is extremely unlikely....probability is very close to 0

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