A physician wants to estimate with 92% confidence the average height of 6 year old boys in his community he wants his margin of error to be 0.5 in the population of these heights is normally distributed with a standard deviation of 1.8 inches how many 6 year old boy should he use in his sample

n=40 boys

Step-by-step explanation:

-Margin of error is given by the formula:

-The z score for a probability of 92% is 1.75

#We make n the subject of the formula and substitute at a 92% confidence:

Hence, he needs approximately 40 boys for the study

the most boring ever written

step-by-step explanation:

i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.