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The average length of time it takes to fully carbonite(a la Han Solo) is 25 minutes. Suppose Jabba the Hutt wants to test this claim. Assume that freezing times are normally distributed. Jabba collects carbonite freezing data from 30 of his prisoners. He finds that the sample average is 23.5 minutes with a sample standard deviation of 2.75 minutes. Using the Confidence Interval Approach and a=0.05, does Jabba have sufficient evidence to conclude that the average time it takes to freeze someone in Carboniteis less than 25 minutes?
Also find:
What test was conducted( 1 Sample Z, 1 Sample T, or 1 Proportion)?
Null and alternative Hypothesis?
Decisions regarding Ho and reasoning?
Interpretation of results
according to a washington post-abc news poll 331 of 502 randomly selected u.s. adults inter- viewed said they would not
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