A research scientist wants to know how many times per hour a certain strand of bacteria reproduces. He wants to construct the 98% confidence interval with a maximum error of 0.18 reproductions per hour. Assuming that the mean is 12 reproductions and the variance is known to be 1.8, what is the minimum sample size required for the estimate? Round your answer up to the next integer.

where are the options?

step-by-step explanation:

answers

\3. yes the presentation (i.e. odd numbers being written as differences of two squares) is possible for all odd natural number however the presentation may not be unique. for example,  57=112−82=292−28257=112−82=292−282.

\4. 2 can't be written as a difference of two squares because 4-1=3 and 1-1=0 and the difference of squares grows to integers larger that 3.

can i get some in proving questions 1 and 2?