Question: QUESTION 10 3 points Barn A journal article reports that a random sample of 22 antivirus software packages was used as a basis for calculating

QUESTION 10 3 points Barn A journal article reports that a

QUESTION 10 3 points Barn A journal article reports that a random sample of 22 antivirus software packages was used as a basis for calculating a 97% t-based confidence interval for the true mean annual cost of an antivirus software in UAE. The resulting interval was (216 Dhs, 297 Dhs). What is the sample mean cost used when computing the interval? Round your answer to two decimal places

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