Question

please round to 4 decimal places

Suppose the age that children learn to walk is normally distributed with mean 12 months and standard deviation 1.5 month. 15 randomly selected people where possible. were asked what age they learned to walk. Round all answers to 4 decimal places What is the distribution of X? X~N b. What is the distribution of ? N c. What is the probability that one randomly selected person learned to walk when the person was between 11l and a 13 months old? d. For the 15 people, find the probability that the average age that they learned to walk is between 11 and 13 months old. e. For part d), is the assumption that the distribution is normal necessary? ONo O Yes f Find the IQR for the average first time walking age for groups of 15 people. months Q1 Q3- months months IQR: Hint: Some Helpful Videos: Finding the Sampling Distribution Finding a Probability Using the Central Limit Theorem Finding a Sample Mean Given its Percentile Hint License Points possible: 1 Untimited attempts. Message instructor about this question Malwarebytes IFR Your Pren Submit Upgrade now t websites, and c Oupgrade to Oi don't need

Answer 1

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fe17x 7) 13-4 P-2 L 13-12 1.5 -5 -O6670-66 P[ncoxera= p(0-66)-p-0.66 Q5144 2 20 NO -0.7475-o- 252 4 APULLKI33 = 0_ 49 5)An

XN=12, 2-2-25 hS TANHU=H, 2-25 P(1L L13) =P/ (1-12,2213-12 o-1S す(667)-9(-6.67) 6.Sも Pl 13) O SO Arz