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Compute the correlation coefficient for the data below (to the thousandths place) Please show work:
X values
-2
-1
0
3
Y values
4
2
8
1
a brief description of the graph- a summarizing statement about the main finding shown in the 3 graphs
Do time series models rely heavily on cause and effect relationships between variables in order to ensure accurate predictions?
State the decision rule, compute the pooled estimate of the population variance, compute the test statistic, and state your decision about the null hypothesis and estimate the p-value.
A company has developed the new battery, but the average lifetime is unknown. In order to estimate the average, a sample of 150 batteries is tested and an average lifetime of this sample is found to be 250 hours.
The miles-per-gallon obtained by the 1995 model Q cars is normally distributed with a mean of 22 miles-per-gallon and a standard deviation of 5 miles-per-gallon. What is the probability that a car will get exactly 22 miles-per-gallon?
find the probability of throwing a sum of 11 at least 3 times in 11 throws of a pair of fair
We desire to test at 0.05 level of significance whether modification increases the life of battery. What is our decision rule? Reject null hypothesis if calculated t is less than 1.96.
in an october 2012 survey of 7786 randomly selected adults living in germany 5840 said they exercised for at least 30
the random variable x has a poisson distribution with mean 40. give an approximate value of the probability p 37 less
Formulate and solve a 0-1 integer linear program model that can be used to find the minimum number of locations necessary to provide coverage to all areas. Clearly indicate your linear program model.
It has been determined empiracally that for a certain egg producer, the number of cracked or broken eggs X, in a randomly slected box containing six eggs, follows approximately the distribution given in the table below:
The number of passengers on the Carnival Sensation during one-week cruises in the Caribbean follows the normal distribution.
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