1. X is a normally distributed random variable with = 0.34 and 97.5% of the values are below an X value of 17.What is the value of ?Please give an answer correctly rounded to two decimal places.
2. Say, Apple Inc. claims that 21% of all Apple device users own an iPad. If a random sample of 215 Apple device users is selected, what is the Z score if 35% of those sampled own an iPad?Assume the conditions are satisfied.Give your answer correctly rounded to two decimal places.
3. Information on a packet of seeds claims that the germination rate is 0.93.Note, the germination rate is the proportion of seeds that will grow into plants.Say, of the 173 seeds in a packet, 136 germinated.What is the value of the number of successes in the population?Please give your answer correct to two decimal places.