1. An old-fashioned bakery produces hand-made oatmeal cookies whose weights have a mean of 0.500 oz and standard deviation of 0.008 oz. In this problem, round answers to 4 decimal places. (a) What proportion of the cookies produced have weights either greater than 0.515 oz or less than 0.485 oz? (Put another way, ...weights NOT between 0.485 and 0.515 oz.) (A) 0.9329 (B) 0.0680 (C) 0.0304 (D) Not possible to determine. (b) The bakery sells the cookies in packages, each package containing 36 cookies. Let's consider each package sold as a simple random sample of size n = 36. What is the probability that the average weight of the cookies in a single package is between 0.495 and 0.505 oz? (A) 0.4628 (B) 0.9998 (C) 0.7341 (D) Not possible to determine.

2. Body temperatures of 32 adults are measured, yielding a sample mean of 98.20?F, and sample standard deviation of 0.62?F. In this problem, round condence interval limits to 2 decimal places. (a) Construct a 95% condence interval estimate of the mean body temperature for the population of adults from which the sample was drawn. (b) Interpret the condence interval in part (a). (c) Construct a 90% condence interval estimate of the mean body temperature for this population, now assuming that the population standard deviation is ? = 0.63?F.

1. An oldfashioned bakery produces hand-made oatmeal cookies whose weights have a mean of 0.500 oz and standard deviation of 0.008 oz. In this problem, round answers to 4 decimal places. (a) What proportion of the cookies produced have weights either greater than 0.515 oz or less than 0.485 oz? (Put another way, \"...weights NOT between 0.485 and 0.515 oz\") (A) 0.9329 (B) 0.0680 (C) 0.0304 (D) Not possible to determine. (b) The bakery sells the cookies in packages, each package containing 36 cookies. Let's consider each package sold as a simple random sample of size n = 36. What is the probability that the average weight of the cookies in a single package is between 0.495 and 0.505 oz? (A) 0.4628 (B) 0.9998 (C) 0.7341 (D) Not possible to determine