QNT 275 Week 3 Quiz | eBooks | Education

QNT 275 Week 3 Quiz

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QNT 275 Week 3 Quiz

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    • question1

 

 

 

?What does it mean when we say that the tails of the normal curve are asymptotic to the x axis?

?The tails gets closer and closer to the x axis and eventually touch it.

?The tails get closer and closer to the x axis and eventually cross this axis.

?The tails get closer and closer to the x axis but never touch it.

?The tails get closer and closer to the x axis and eventually become this axis.

 

question2

You work in marketing for a company that produces work boots. Quality control has sent you a memo detailing the length of time before the boots wear out under heavy use. They find that the boots wear out in an average of 208 days, but the exact amount of time varies, following a normal distribution with a standard deviation of 14 days. For an upcoming ad campaign, you need to know the percent of the pairs that last longer than six months-that is, 180 days. Use the empirical rule to approximate this percent.?

?95%

2.5%

97.5%

?5%

 

 

 

 

 

    • question3

 

 

 

For any normally distributed random variable with mean μ and standard deviation σ, the percent of the observations that fall between  and   is closest to _______. ?

??95%

?16%

??68%

?32%

 

 

 

 

QNT 275 Week 3 Quiz https://uoptutorialstore.com/category/qnt-275/ question1 ?What does it mean when we say that the tails of the normal curve are asymptotic to the x axis? ?The tails gets closer and closer to the x axis and e
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