The phrase "allegedly lower" is correct and usable in written English.
It can be used when discussing claims or assertions that something is lower than previously stated or believed, without confirming the truth of that claim.
Example: "The new study suggests that the costs are allegedly lower than what was reported last year."
Alternatives: "reportedly lower" or "supposedly lower".
Civil claims have alleged that Autonomy's accounts were deeply flawed, with sales growth, certain revenues and operating margins all allegedly lower than was reported in the books.
In India, the Muslim community is typically more poor, less educated, and more likely to have violent crimes perpetrated against them than even allegedly "lower caste" Hindus (who share a ripe history of violent atrocities committed against them by supposed "higher caste" Hindus).
In early October 1856 some Chinese officials boarded the British-registered ship Arrow while it was docked in Canton, arrested several Chinese crew members (who were later released), and allegedly lowered the British flag.
This year's NPD top ten came with a number of surprising stories, not the least of which was the continued strength of Call of Duty, where despite a lot of criticism and allegedly significantly lower sales than Black Ops 3, Infinite Warfare was still the best-selling game of the year.
Allegedly, montelukast lowers the inflammatory load making the cough receptors less prone to activation.
Since then, however, numerous claimed leaks of Zen performance, including recent comparisons of 8-core Zen chips, versus Intel's mighty Core i7-5960X (Haswell-E) 8-core CPU, have hinted at strong performance metrics for Zen and allegedly at significantly lower price points.
The independent tester's report comes at a critical time for the F-35 program, as the Pentagon has been raising the idea of a huge 450-plane "block buy" that would allegedly lead to lower costs for the program.
The drug he allegedly administered, propofol, lowers the recipients heart rate and blood pressure.
The boat capsized with hundreds of migrants allegedly locked in its lower decks and unable to get out.
She allegedly recorded a temperature 1C lower than it was during a screening process at Heathrow, was "dishonest" because she knew this was wrong, and failed to escalate the potential marker for Ebola appropriately.
The former employee allegedly continuously injured their neck, lower back, right hip, and left hand and wrist from the mid 1970s to February 2000, according to documents.
