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A die is loaded, and a 6 comes up with probability 1?4. If the die is tossed twelve times, find the probability that
a) the die will land on 6 exactly seven times
b) the die will land od 6 seven times or less
c) the die will land on 6 more than seven times
a local police precinct has seen a recent increase in the number of complaints filed regarding how officers are
Standard deviations for first- and second-time and confidence interval
suppose a point xy is chosen at random from the disk x2 y2 is less than and equal to 1. find the a marginal density of
an insurance sales representative sells policies to 5 men all of identical age and in good health. according to the
To guarantee that cans of soda are properly filled, some cans are sampled and the amounts measured. The overall average for the samples is 12 ounces.
Determine the correlatins between pairs of all interval variables (i,e., absences with PE, PE with math, math with writing) How much of the math grade can be explained by the PE grade?
What fraction of cups will probably overflow if 230-milliliter cups are used for the next 1000 drinks? 0.0228 or 23 out of the 1000 drinks will overflow.
Solar cells are attached to a panel with a new heat resistant adhesive. The adhesive must provide 2.80 pounds of force in order to hold the cell on the panel. A random sample of 50 cells is tested and the following forces are necessary to break th..
How many adults must be randomly selected to estimate the mean driving time of Chicago commuters? We want 99% confidence that the sample mean is within 4 minutes of the population mean, and the population standard deviation is known to be 8 minute..
I have fit a line to data representing cholesterol readings for 28 individuals starting a cholesterol reducing drug. The computer provides the following output, The degrees of freedom for the t test for the slope are
Use a 0.05 significance level to test the claim of a cereal lobbyist that the mean for all cereals is less than 0.3g.
State the hypotheses for a right-tailed test. Obtain a test statistic and p-value assuming unequal variances. Why might the sample data not follow a normal, bell-shaped curve? If not, how might this affect your conclusions?
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