Suppose that students own an average of 4 pairs of jeans. 8
people from your class...
Suppose that students own an average of 4 pairs of jeans. 8
people from your class were surveyed to determine if the average
for students in college is higher than 4.
DATA TO USE: 3, 4, 4, 5, 5, 5, 7, 12
A) In words, CLEARLY state what your random variable X or P'
represents.
B) State the distribution to use for the test. If t, include the
degrees of freedom. If normal, include the mean and
standard deviation.
C)...
Could you please solve these using r code.
1. A pumpkin farmer weighed a simple random...
Could you please solve these using r code.
1. A pumpkin farmer weighed a simple random sample of size n =
20 pumpkins, with these results: 9.6, 8.8, 5.1, 9.7, 9.1, 8.9, 8,
9.2, 2.7, 9.1, 8.5, 7.3, 9.3, 9.6, 4.1, 9.9, 7.6, 9, 7.2, 8.5 (a)
Create a QQ plot of the weights. Do you think it is reasonable to
assume that the population distribution is normal? Explain your
answer. (b) Regardless of your answer to (a), use R...
1) Do you want to own your own candy store? Wow! With some
interest in running...
1) Do you want to own your own candy store? Wow! With some
interest in running your own business and a decent credit rating,
you can probably get a bank loan on startup costs for franchises
such as Candy Express, The Fudge Company, Karmel Corn, and Rocky
Mountain Chocolate Factory. Startup costs (in thousands of dollars)
for a random sample of candy stores are given below. Assume that
the population of x values has an approximately normal
distribution.
96
176...
2) Airline accidents: According to the U.S. National
Transportation Safety Board, the number of airline accidents...
2) Airline accidents: According to the U.S. National
Transportation Safety Board, the number of airline accidents by
year from 1983 to 2006 were 23, 16, 21, 24, 34, 30, 28, 24, 26, 18,
23, 23, 36, 37, 49, 50, 51, 56, 46, 41, 54, 30, 40, and 31.
a. For the sample data, compute the mean and its standard error
(from the standard deviation), and the median.
b. Using R, compute bootstrap estimates of the mean, median and
25% trimmed...