Question Help Refert he comparing data set and construct a 90% confidence interv

Question

Question Help Refert he comparing data set and construct a 90% confidence interval estimate of the mean pu se rate of adult females, then do the same for adult males. Compare the results EE Cick the icon to view the pulse rates for adult females and adult males. Construct a 90% confidence interval of the mean pulse rate for adult females 1 Pulse Rates Round to one decimal place as needed) Pulse Rates beats per minute) Males ect o Females 83 70 885 73 61 91 59 72 64 76 54 57 54 84 87 55 56 75 86 93 81 76 73 86 55 34 6 67 62 63 74 59 63 59 84 79 63 7583 79 66 95 92 80 59 76 57 68 64100 63 5 Enter your answer in the edit fields and then click Check Answer 95 70 83 5 59 6776 remaining Clear A

Explanation / Answer

Solution:- From the table
  
male : x = 66.95 , ? = 11.5002

Female : X = 75.85 , ? = 13.594

Z = 1.645

=> 90% confidence interval of the mean pulse rate for adult females:
= X +/- Z*s/sqrt(n)
= 75.85 +/- 1.645 * 13.594/sqrt(40)
= 72.3 , 79.4

=> 90% confidence interval of the mean pulse rate for adult males:
= X +/- Z*s/sqrt(n)
= 66.95 +/- 1.645* 11.5002/sqrt(40)
= 64.0 , 70.0

  

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