1 Say, Apple Inc. claims that 29% of all Apple device users own an iPad. If a random sample of 138 Apple device users is selected, what is the Z score if 34% of those sampled own an iPad? Assume the conditions are satisfied. Give your answer correctly rounded to two decimal places. 2 Information on a packet of seeds claims that the germination rate is 0.88. Note, the germination rate is the proportion of seeds that will grow into plants. Say, of the 209 seeds in a packet, 129 germinated. What is the value of the number of successes in the population? Please give your answer correct to two decimal places. 3You are told that the distribution of television weights is normal, with a mean, of 10.6 kilograms and a standard deviation, of 2.9 kilograms. If a random sample, n of 7 televisions is selected, what is the Z score for a sample mean weight, xof 13 kilograms? 4 The lifetime of a device (measured in hours) is exponentially distributed with = 8. What is the probability that the device lasts less than 82 hours? 5 You are told that the weights of bags of apples are normally distributed with a mean of 1 kilogram and a standard deviation of 0.079 kilogram. According to the Empirical rule, within what range will approximately 99.7% of the bags of apples weigh? Please give your first answer as the lower bound and your second answer as the upper bound. Give your answers correctly rounded to two decimal places. Do NOT include units in your answers. 6 The lifetime of a product (years) is exponentially distributed with = 0.03. What is the probability that this product will last between 6 and 12 years. 7 if x = 47, s = 4 and n = 36, give the lower confidence limit and the upper confidence limit, for a 95% confidence interval to estimate the population mean . Please give your answer correctly rounded to two decimal places and do NOT include units in your