Which sentence is incorrectly punctuated? For a period of six months, we plan to monitor the system carefully. By the way, this new system will have enough trunk lines to ensure that customers won't get busy signals. In the summer we plan to install a new telephone system. Needless to say we want all our policies, people, and systems to meet our customers' expectations.

Needless to say we want all our policies, people, and systems to meet our customers' expectations.

Explanation:

The sentence is incorrectly punctuated because there should be a comma separating the phrase Needless to say from the rest of the sentence. In that respect, Needless to say means obviously and is used to give emphasis. Thus, the revised sentence is the following:

Needless to say, we want all our policies, people, and systems to meet our customers' expectations.