Mathematics, 19.05.2020 20:58 Samzell
The mean area : ¯ x of the several thousand apartments in a new development by a certain builder is advertised to be 1100 square feet. A tenant group thinks this is inaccurate, and suspects that the actual average area is less than 1100 square feet. In order to investigate this suspicion, the group hires an engineer to measure a sample of apartments to verify its suspicion. The appropriate null and alternative hypotheses, H0 and Ha, for μ are:
A. H0: ? = 1100 and Ha: ? 1100.
B. H0: ? = 1100 and Ha: ? < 1100.
C. H0: ? = 1100 and Ha: ? > 1100.
D. The hypotheses cannot be specified without knowing the size of the sample used by the engineer.
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The mean area : ¯ x of the several thousand apartments in a new development by a certain builder is...
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