A random sample of monthly gasoline prices was taken from 2005 and from 2011. For 2005, it shows that the average gasoline price was $2.01 with a standard deviation of $1.07. For 2005, it shows that average gasoline price was $3.35 with a standard deviation of $1.32. Can it be concluded that the mean gasoline cost less in 2005?What will be the appropriate statistical analysis to use in this problem? a. t-Test for Comparing Two Means from Independent Samples b. z-test for comparing the difference between two proportions c. t-Test for Comparing Two Means when the Samples are Dependent d. z-Test for Comparing Two Means from Independent Populations e. F-test in Comparing the Difference Between Two Variances

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A: Here AS PER POLICY I HAVE CALCULATED 3 SUBPART PLZ REPOST FOR REMAINING PARTS

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A: Solution: Given information: n1=20 Sample size of model An2=21 Sample size of model Bx1=$211 Sample…

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Q: You want to buy a washing machine, and a salesperson tells you that the mean repair costs for Model…

A: The level of significance is 0.01.

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