Question: i need help with (d) please! It needs to be solved using ti-84 please incldue the functions!! i know the others are done by 2nd

i need help with (d) please! It needs to be solved using ti-84 please incldue the functions!!

i know the others are done by 2nd vars-->invnorm

Question of 30 w.gestions on Tire lifetime: The lifetime of a certain type of automobile tire (in thousands of miles) les normally distributed with manja = 40 and standard deviation ou 5. Use the TI-84 Plus calculator to answer the following (e) Find the 18th percentile of the tire times (b) Find the 70th percentile of the tire lifetimes. (c) Find the third quartile of the tire lifetimes (d) The tire company wants to guarantee that its tires will last at least a certain number of me what number of me thousands) should the company guarantee so that only 5% of the tires violate the guarantee Round the answers to at least two decimal places Part 1 of 4 The 18th percentile of the tire lifetimes is 35.42 thousand miles Your answer is correct DA

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