QUESTION 1

Suppose 29% of smartphones sold at a retail outlet are purchased with warranty. A random sample of 33 smartphones is selected. Assuming independence, answer the following binomial probability questions. Report probabilities accurate to at least 4 decimal places. What is the probability that, of the 33 smartphones selected: a) exactly 9 are purchased with warranty? b) none of them are purchased with warranty? c) at least 10 are purchased with warranty? d) at most 11 are purchased with warranty?a. On a recent biology quiz, the class mean was 15 with a standard deviation of 2.3. Calculate the z-score (to 2 decimal places) for a student who received score of 21. Z-score for Biology Quiz: b. The same student also took a midterm in their marketing course and received a score of 81. The class mean was 75 with a standard deviation of 5.9. Calculate the z-score (to 2 decimal places). Z-score for Marketing Midterm: c. Which test did the person perform better on compared to the rest of the class? Select an answer #Humber's Financial Services Program is offering a post-diploma program, Securities and Investments. Students must write an admission test before acceptance into the program. The scores on the admission test are normally distributed with a mean score of 133 and a standard deviation of 15. If admission to the program is based entirely on the score on the admission test and only the top 7% will be accepted, find the cutoff score for gaining admission to the Securities and Investment Program. Use Excel to answer the question. Round your answer 2 decimal places