A random survey of 75 death row inmates revealed that the mean length of time on death row is 17.8 years with a standard deviation of 6.8 years. Conduct a hypothesis test to determine if the population mean time on death row could likely be 15 years. Part (a)   Part (b) Part (c)   Part (d)   Part (e)   Part (f) Is the population standard deviation known? YesNo     If so, what is it? (Enter your answer to one decimal place. If the standard deviation is not known enter DNE.) Part (g) Calculate the following. (i) Enter your answer to one decimal place. x =  (ii) Enter your answer to one decimal place. s =  (iii) Enter your answer as a whole number. n =  Part (h)   Part (i) State the distribution to use for the hypothesis test. (Enter your answer in the form z or tdf where df is the degrees of freedom.)       Part (j) Find the p-value. (Round your answer to four decimal places.) Part (k)

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A random survey of 75 death row inmates revealed that the mean length of time on death row is 17.8 years with a standard deviation of 6.8 years. Conduct a hypothesis test to determine if the population mean time on death row could likely be 15 years.

  • Part (a)

     
  • Part (b)






  • Part (c)

     
  • Part (d)

     
  • Part (e)

     
  • Part (f)

    Is the population standard deviation known?
    YesNo    

    If so, what is it? (Enter your answer to one decimal place. If the standard deviation is not known enter DNE.)
  • Part (g)

    Calculate the following.
    (i) Enter your answer to one decimal place.
    x = 

    (ii) Enter your answer to one decimal place.
    s = 

    (iii) Enter your answer as a whole number.
    n = 
  • Part (h)

     
  • Part (i)

    State the distribution to use for the hypothesis test. (Enter your answer in the form z or tdf where df is the degrees of freedom.)
     
     
     
  • Part (j)

    Find the p-value. (Round your answer to four decimal places.)
  • Part (k)

     
     

     

     
 

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