This homework is due at the start of class on Friday, November 3rd.
SDM4 15.5, 15.7, 15.13, 15.15, 15.25, 15.27, 15.31, 15.41, 15.51
SDM4 16.1, 16.3, 16.17,
Part IV review exercise 25, 31, 35, 43
SDM4 17.1, 17.3, 17.5, 17.9, 17.11, 17.13, 17.19, 17.29, 17.31, 17.41, 17.47, 17.49, 17.51
A company selling vegetable seeds in packages of 20 seeds estimates that the mean number of seeds that will actually grow is 18, with a standard deviation of 1.2 seeds. You buy 5 different seed packets.
SOLUTION:
SOLUTION:
A Department of Transportation report about air travel found that airlines misplace about 5 bags per 1000 bags that are checked on flights. Suppose that you are traveling with a group of people who have checked 22 bags on your flight. Can you consider the fate of these bags to be Bernoulli trials?
SOLUTION:
Police estimate that 80% of drivers wear their seatbelts. They set up a safety roadblock, stopping cars to check for seatbelt use.
SOLUTION:
dbinom
function in R.SOLUTION:
# Your code goes here
pbinom
function in R, but remember that pbinom calculates the probability that a binomial random variable is less than or equal to a given value, not greater than or equal to a given value.SOLUTION:
SOLUTION:
My favorite color of M and M is blue, and I’m concerned that they may be putting fewer blue M and M’s into bags than they used to. Mars Company last published the distribution of colors for M and M’s in 2008, and at that time 16% of M and M’s were blue. Suppose I get a sample of 100 M and M’s, and I’m willing to assume that their colors are independent. In my sample, there are 12 blue M and M’s.
SOLUTION:
SOLUTION:
# Your code goes here
SOLUTION:
# Your code goes here
The Centers for Disease Control and Prevention estimated in 2014 that 18.1% of American adults smoked cigarettes. Using the 68-95-99.7 rule, describe the sampling distribution model for the proportion of smokers among a randomly selected group of 60 adults. Be sure to discuss your assumptions and conditions.
SOLUTION:
Statistics from Cornell’s Northeast Regional Climate Center indicate that Ithaca, New York, gets an average of 35.4 inches of rain each year, with a standard deviation of 4.2 inches. Assume that a Normal model applies.
pnorm
function, but remember that pnorm computes the probability that a normal random variable is less than a specified value!SOLUTION:
# Your code goes here
SOLUTION:
# Your code goes here.
SOLUTION:
SOLUTION:
# Your code goes here