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What dues the notation 2\" indicate? The expreesien In denotes the z score with an area of u E \fFind the indicated IQ score. The graph lo the right depicts IQ scores of adults, and those scares are normally distributed with a mean of 100 and a standard deviation at 15 Click to view page 1 of the table. Click to View ge 2 of the table. The indicated to acute. x. is . [Round to one decimal place as needed.) [L55 ,9 An elevator has a placard stating that the maximum capacity is 1600 lbID passengers So' 10 adult male passengers can have a mean weight ofup to 1600110=160 pounds. It the elevator is loaded with 10 adult male passengers. nd the probability that it is overioaded because they have a mean weight greater than 160 lb. [Assume that weights of males are normally distributed with a mean of 165 lb and a standard deviation of 25 lb.) Does this elevator appear to be safe? The probability the elevator is overloaded is (Round to four decimal places as needed.) \fUse the sample data and condence level given below to complete parts (a) through (d). Aresearch institute poll asked respondents ifthev felt vulnerable to identity theft. In the poll, n =1053 and x: 543 who said "yes." Use a 95% condence level. Click the icon to view a table ofz scores. all Find the best point estimate of the population proportion p. D (Round to three decimal places as needed.) Salaries of 38 college graduates who took a statlstics course in college have a mean, i, of $56,100, Assuming a standard deviation' 5, of$11,254, oonstrud a 55% condence interval for estimatlng the population mean '1 Click here to View a t dlstribulion table. Click here to View page 1 of the standard normal distribution table. Click here to View page 2 of the standard normal distribution table. 5