In a random sample of 80 ears of corn, farmer Carl finds that 10 of them have worms. Carl claims that less than 20% of all his corn has worms. Test this claim at the 0.10 significance level. (a) What is the claim, null hypothesis, and alternative hypothesis? (use "MathType to answer this question. Click on the )

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?