Twelve Dozenol tablets are tested for solubility before and after being stored for one year. The indexes
Question:
a. At the 0.05 significance level, test the claim that the Dozenol tablets are more soluble after the storage period.
b. Construct a 95% confidence interval estimate of the mean difference of after - before.
Transcribed Image Text:
Before | 472 487 506 512 489 503 $11 501 495 504 494 462 After 562 512 523 528 554 513 516 510 S24 510 524 508
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