In a certain population of mussels (mytilus edu- lis), 80% of the individuals are infected with an intestinal parasite.13 a marine biologist plans to examine 100 ran- domly chosen mussels from the population. find the probability that 85% or more of the sampled mussels will be infected, using the normal approximation without the continuity correction.

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?