Please only do that one that is incorrect Suppose that the amount of time that students spendstudying in the library in one sitting is normallydistributed with mean 40 minutes and standarddeviation 19 minutes. A researcher observed 13students who entered the library to study. Round allanswers to 4 decimal places where possible.a. What is the distribution of X? X - N( 4019b. What is the distribution of æ? ¤ - N( 405.2697Vc. What is the distribution of > x? ) x - N(520247d. If one randomly selected student is timed, findthe probability that this student's time will bebetween 41 and 45 minutes. 68.5055e. For the 13 students, find the probability thattheir average time studying is between 41 and 45minutes. 5.2697f. Find the probability that the randomly selected13 students will have a total study time morethan 507 minutes. 6.2670g. For part e) and f), is the assumption of normalnecessary?YesO No oh. The top 20% of the total study time for groups of13 students will be given a sticker that says"Great dedication". What is the least total timethat a group can study and still receive a sticker?8.4038X minutesC.

Name: Please only do that one that is incorrect Suppose that the amount of t
Uploaded: 2024-03-20T06:38:44.000Z
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Description: Please only do that one that is incorrect Suppose that the amount of time that students spendstudying in the library in one sitting is normallydistributed with mean 40 minutes and standarddeviation 19 minutes. A researcher observed 13students who ent