Each sweat shop worker at a computer factory can put together 4 computers per hour on average with a standard deviation of 0.8 computers. 42 workers are randomly selected to work the next shift at the factory. Round all answers to 4 decimal places where possible and assume a normal distribution. If one randomly selected worker is observed, find the probability that this worker will put together between 3.9 and 4 computers per hour.  For the 42 workers, find the probability that their average number of computers put together per hour is between 3.9 and 4.  Find the probability that a 42 person shift will put together between 163.8 and 168 computers per hour

A soft drink machine outputs a mean of 29 ounces per cup. The machine's output is normally distributed with a standard deviation of 4 ounces. What is the probability of filling a cup between 25 and 31 ounces? Round your answer to four decimal places. Answer esc If you would like to look up the value in a table, select the table you want to view, then either click the cell at the intersection of the row and column or use the arrow keys to find the appropriate cell in the table and select it using the Space key. angle. 9 ! 1 9 a Z ← @ 2 W S X # 3 e d C C $ 4 r f % 5 V t Oll A 6 Normal Table - to-z Normal Table - to z b y h & 7 n O u * 8 3 O i N ( 9 k O < 1 alt ) 0 1 Р O - : Tables ; Submit Answer 4 ? 1 + = Keypad Keyboard Shortcuts 31 11 1 Oct 28 }. backspace 1 USE YOUR SMARTPHONE FOR 2:53 3 D45 enter

The average amount of money that people spend at Don Mcalds fast food place is $7.5200 with a standard deviation of $1.9400. 12 customers are randomly selected. Please answer the following questions, and round all answers to 4 decimal places where possible and assume a normal distribution. For the 12 customers, find the probability that their average spent is less than $7.0400. Find the probability that the randomly selected 12 customers will spend less than $84.4800. For part e) and f), is the assumption of normal necessary? YesNo The owner of Don Mcalds gives a coupon for a free sundae to the 3% of all groups of 12 people who spend the most money. At least how much must a group of 12 spend in total to get the free sundae? $

Suppose that the average number of Facebook friends users have is normally distributed with a mean of 146 and a standard deviation of about 46. Assume six individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. For the group of 6, find the probability that the average number of friends is less than 122.= Find the first quartile for the average number of Facebook friends=

Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a standard deviation a = 15. Find the probability that a randomly selected adult has an IQ between 91 and 119. Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ between 91 and 119 is. (Type an integer or decimal rounded to four decimal places as needed.) Enter your answer in the answer box. MacBook Air esc 888 %23 & 2 3 4 5 6 7 8 Q E R T Y tab P A D G H caps lock K V в N M > ? control option command command option

A particular fruit's weights are normally distributed, with a mean of 562 grams and a standard deviation of 31 grams. If you pick 7 fruits at random, then 13% of the time, their mean weight will be greater than how many grams? Give your answer to the nearest gram.

The average production cost for major movies is 63 million dollars and the standard deviation is 20 million dollars. Assume the production cost distribution is normal. Suppose that 35 randomly selected major movies are researched. Answer the following questions.  Give your answers in millions of dollars, not dollars.  Round all answers to 4 decimal places where possible 1. For the group of 35 movies, find the probability that the average production cost is between 61 and 66 million dollars

Caleb earned a score of 38 on Exam A that had a mean of 76 and a standard deviation of 20. He is about to take Exam B that has a mean of 150 and a standard deviation of 40. How well must Caleb score on Exam B in order to do equivalently well as he did on Exam A? Assume that scores on each exam are normally distributed.

The distances golf balls travel under laboratory testing conditions are normally distributed. The mean is 312 yards. The probability the golf ball travels further than 319 yards is 0.28. Find the probability a randomly selected golf ball travels between 305 yards and 319 yards. Express the answer as a decimal value rounded to the nearest hundredth.