l-A reading teacher gives two different tests to measure students' aptitude for reading. Scores on the rst test are normally distributed with a mean of 30 and a standard deviation of 6.2. Scores on the second test are normally distributed with a mean of 75 and a standard deviation of 11.5. Assume that the two tests use different scales to measure the same aptitude. Ayse got a score of 25 an the first test and 75 on the second. a.What are the z scores of Ayse on each test? b. What are the T scores of Ayse on each test? c. On which test his achievement is higheriaccording to the classroom achievement) ( d. Determine his percentile rank on the rst and second test. ( using the table) 2What proportion of the normal curve lies between a1; score of -1.45 and zscore of 0.70 ? 3-What proportion of the scores in a normal distribution are higher than a Tscore of 45? 4-Which zscore has 70% of the scores below it? 5- What percentage of the general population have ['15 higher than 115'? (according to the WAIS IQ mean=100 sd dev=15)