What percentage of millworkers earn between $20.00 and $25.00 per hour
Thank you for the opportunity to help you with your question!
First transform 20 and 25 to z-scores: z1= (20-24)/3= -4/3 =-1.3333 ; z2=( 25-24)/3= .3333
Next, Find the area under the normal curve between those two z-scores: P(-1.3333< z <.3333)=.630559-.091211=.539347 =53.93%
53.93% of mill workers earn between $20 and $25 per hour.
How did you get the area under the normal curve answer. Did you add or multiply in the ( )
I used excel function: =Norm.s.dist(z,true)
P(-1.3333< z <.3333)= P(z<.3333)-P(z<-1.3333)= .630559-.091211=.539347 =53.93%
What is the wage of the top 1% of millworkers? Round to two decimal places
Find the z value that corresponds to probability of .99. Norm.s.inv(.99)=2.3263
I need help in my statistics problem
Content will be erased after question is completed.
Enter the email address associated with your account, and we will email you a link to reset your password.
Forgot your password?