The internal revenue service reports that the mean federal income tax paid in 2007 was $7908 with a standard deviation of $5000.  Find the probability that if an individual taxpayer is randomly selected the amount they paid in taxes in 2007 is less than $8000?

the ph measurements of water specimens from various location along a given river basin are normally distributed with mean 8 and standard deviation 0.3. what is the approximate probability that the ph measurement of a randomly selected water specimen is greater than 8.2?

The number of hurricanes hitting the coast of Florida annually has a Poisson Distribution with a mean of 0.9. a) What is the probability that two or more hurricanes will hit the Florida coast in a year? b) What is the probability that exactly one hurricane will hit the coast of Florida in a year? c) What is the variance of the number of hurricanes hitting the coast?

A Creating Visual Displays of Data.For this portion of the activity, you will export output you created while working in SPSS for Chapter 4 into a Word document. Please read the instructions below to ensure you are including the correct material in your document (This chapter has you create many charts and not all are required for Part #3).1.Using the data set: DownloadFestival.sav, create a boxplot for males and females for the variable Day1. It is important that you change the outlier identified to 2.02 prior to creating the boxplot. Be sure to save the data set with a new […]

Can someone please help me with this assignment ASAP. ABC toy company prints cards for games. The company claims that 30% of this are rookies, 60% veterans and 10% are all stars. The cards are sold in packages of a 100. Suppose a randomly selected package of cards has 50 rookies , 45 veterans and 5 all stars, is this consistent with ABC company claim. Use a 0.05 level of significance.