Question

Show all of your work, if using a calculator or Excel – Show formula and variables used to solve problem.

The SMC technical services department has embarked on a quality improvement effort. Its first project relates to maintaining the target upload speed for its Internet service subscribers. Upload speeds are measured on a standard scale in which the target value is 1.0. Data is collected over the past year indicate that the upload speed is approximately normally distributed, with a mean of 1.005 and a standard deviation of 0.10. Each day, one upload speed is measured. The upload speed is considered acceptable if the measurement on the standard scale is between 0.95 and 1.05.

1. Assuming that the distribution of upload speed has not changed from what is was in the past year, what is the probability that the upload speed is. (Answers should be 4 decimal places)

c. between 1.0 and 1.05?

d. less than 0.95 and greater than 1.05?

2. The objective of the operations team is to reduce the probability that the upload speed is below 1.0. Should the team focus on process improvement that increases the mean upload speed to 1.05 or on a process improvement that reduces the standard deviation of the upload speed to 0.075? Explain you answer using statistics

Answer #1

for normal distribution z score =(X-μ)/σx | |

here mean= μ= | 1.005 |

std deviation =σ= | 0.100 |

c)

probability
=P(1<X<1.05)=P((1-1.005)/0.1)<Z<(1.05-1.005)/0.1)=P(-0.05<Z<0.45)=0.6736-0.4801=0.1935 |

d)

probability
=1-P(0.95<X<1.05)=1-P((0.95-1.005)/0.1)<Z<(1.05-1.005)/0.1)=1-P(-0.55<Z<0.45)=1-(0.6736-0.2912)=0.6176 |

2)

for 1st case with mean =1.0:

probability =P(X>1)=P(Z>(1-1.05)/0.1)=P(Z>-0.5)=1-P(Z<-0.5)=1-0.3085=0.6915 |

for 2nd case with standard deviation of 0.075:

probability =P(X>1)=P(Z>(1-1.005)/0.075)=P(Z>-0.07)=1-P(Z<-0.07)=1-0.4721=0.5279 |

since increasing mean will increase probability of upload speed above 1.0 , one should focus on increasing the mean mean upload speed to 1.05

Need some assistance explaining what the answers mean, can solve
the math portion, struggling to put them into words for a
report.
The AMS technical services department has embarked on a quality
improvement effort. Its first project relates to maintaining the
target upload speed for its Internet service subscribers. Upload
speeds are measured on a standard scale in which the target value
is 1.0. Data collected over the past year indicate that the upload
speed is approximately normally distributed, with...

The production department of the newspaper has embarked on
aquality improvement effort. Its first project relates to
theblackness of the newpaper print. Each day, a determinationneeds
to be made concerning how black the newspaper isprinted. Blackness
is measured on a standard scale in whichthe target value is 1.0.
Data collected over the past yearindicate that the blackness is
normally distributed with a mean of1.005 and a standard deviation
of 0.10. Each day, one spot onthe first newspaper printed is
chosen,...

The AMS technical services team has embarked on a quality
improvement effort. Its first project relates to maintaining the
target upload speed for its Internet service subscribers. Upload
speeds are measured on a device that records the results on a
standard scale in which the target value is 1.0. Each day five
uploads are randomly selected, and the speed of each upload is
measured. The results for 25 days is stored in AMS14.xl
(please provide answers for a through c...

Please answer the problem in this context if possible
(State your assumptions, state the values you know from the
problem, H (null) and H(alternative), state T-crit (critical value)
and level of significance (p-value), state decision rule, state
decision, state conclusion). Please use Ph stat.
Managing Ashland MultiComm Services
Continuing its monitoring of the upload speed first described in
Chapter 6 Managing Ashland MultiComm Services case on page 213, the
technical operations department wants to ensure that the mean
target upload...

Note: You need to show your work. If you choose to use Excel for
your calculations, be sure to upload your well-documented Excel and
to make note in this file of what Excel functions you used and when
you used them, and how you arrived at your answers. If you choose
to do the work by hand, Microsoft Word has an equation editor. Go
to “Insert” and “Equation” on newer versions of Word. On older
versions, go to “Insert” and...

Using the model proposed by Lafley and Charan, analyze how
Apigee was able to drive innovation.
case:
W17400
APIGEE: PEOPLE MANAGEMENT PRACTICES AND THE CHALLENGE OF
GROWTH
Ranjeet Nambudiri, S. Ramnarayan, and Catherine Xavier wrote
this case solely to provide material for class discussion. The
authors do not intend to illustrate either effective or ineffective
handling of a managerial situation. The authors may have disguised
certain names and other identifying information to protect
confidentiality.
This publication may not be...

What tools could AA leaders have used to increase their
awareness of internal and external issues?
???ALASKA AIRLINES: NAVIGATING CHANGE
In the autumn of 2007, Alaska Airlines executives adjourned at
the end of a long and stressful day in the
midst of a multi-day strategic planning session. Most headed
outside to relax, unwind and enjoy a bonfire
on the shore of Semiahmoo Spit, outside the meeting venue in
Blaine, a seaport town in northwest
Washington state.
Meanwhile, several members of...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 8 minutes ago

asked 10 minutes ago

asked 22 minutes ago

asked 33 minutes ago

asked 55 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago