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Sports and Leisure As soon as the gates at an amusement park open, there is a mad rush to the most popular rides. A random sample of people waiting in line was obtained and asked which ride they were headed to first. The results and the hypothesized proportions are given in the following table.
Conduct a goodness-of-fit test to determine whether any of the true population proportions differ from the hypothesized proportions. Use a = 0.01.
use the given information to find the p-value. also use a 0.05 significance level and state the conclusion about the
a psychologist claims that the mean age at which children start talking is 12.8 months. carlos wanted to check if this
a politician claims that she will receive 63 of the vote in an upcoming election. the results of a properly designed
A researcher believes that if she uses a different text the students will score differently on the standardized test but she doesn't know what the difference is. The test had a mean of 110 and a σ of 12.
Cholesterol was 186 milligrams with s = 19.0 milligrams. Construct a 95% confidence interval for the true mean cholesterol content of all such eggs.
a manufacturer of semiconductors has a 20 defect rate in the semiconductors produced. every hour fifteen
Assuming these data are from two independent groups, calculate dfX, dfY, and dftotal for the data above. Determine the critical values for t based on the df you calculated for the question above, assuming a two-tailed test with a p level of 0.05.
Given P(x), where P describes the kth Lagrange polynomial that interpolates f at k+ 1 points:
Upon retirement Mr. Klaws start to make tow types of children's wooden toys in his shop - guns and tools Wuns yield variable profit of 9$ each and Tools have a contribution margin of 8$ each . Even though his electric saw overheats . he can make 7..
with probability 0.4 stocks are worth 18 commercial bonds are worth 15 and government bonds are worth 9.with
build a linear model by using y as the outcome variable and x1 and x2 as the predicting variables. make sure to write
If the service manager wants to 95% confident that the overall time is correctly estimated, with a 3 percent probability of error, what sample size should be taken.
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