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The following summary table presents the results from a repeated-measures anova comparing three treatment conditions. Fill in the missing values.
The Environmental Protection Agency (EPA) has established national ambient air quality standards in an effort to control air pollution. Currently, the EPA limit on ozone levels in air is 12 parts pe
A study of 45 professors showed that the average time they spent creating test questions was 13.0 minutes per question. The standard deviation of the population is 5.8.
A report states that 40% of home owners had a vegetable garden. How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 3% with 99% confidenc
A researcher is evaluating the effectiveness of a speed-reading course. A standardized test, measuring both speed and comprehension, was giben to a sample of n=15 students before the course started
Find the probability that a customer uses both high-speed internet and a digital phone. Write a probability statement and round to three decimals. Find the odds against the event in part A.
The teacher randomly finds a test with a good grade on it. Find the probability that the student did not study for the test. Round to three decimals.
Find the regression line predicting sales from no. of people working with the new point added. Find the residual of the new point?
A two factory research is used to evaluate the effectiveness of a new blood pressure medicine. In this two factor study, Factor A is medication vs no medication. Factor B is male vs female. What pat
If 40 bags of potato chips are randomly selected, what is the probability that their mean weight is between 5.5 oz to 6.5 oz? If 40 bags of potato chips are randomly selected, what is the probability
Compute the population standard deviation for this random variable and use your answer from the previous question in order to complete the following observation: Out of a population of 10000 custome
On average, how many days did these patrons stop by to make purchases during this stormy week? What is the expectation or expected value for this random variable?
X is a normally distributed random variable with a standard deviation of 4.00. Find the mean of X if 12.71% of the area under the distribution curve lies to the right of 10.06.
The mean weight of loads of rock is 51.0 tons with a standard deviation of 6.0 tons. If 16 loads are chosen at random for a weight check, find the probability that the mean weight of those loads is
How many different ways can a teacher select 6 students from a class of 19 students to each perform a different classroom task?
Of the controls, 3 had previously experienced meningitis. Set up the appropriate contingency table and calculate and interpret the odds ratio for the relationship between meningitis and SD.
The following summary table presents the results from a repeated-measures ANOVA comparing three treatment conditions, each with a sample of n = 12 participants. Fill in the missing values in the tab
In a certain town, 70 % people support the construction of a new ballpark. If 5 people are randomly selected, what is the probability exactly 2 of them supported it?
In the instructor's answer book for a mathematics text, 8% of the answers are incorrect. Use the Poisson approximation to express the probability that there are exactly 2 incorrect answers for a hom
You calcuate the chi-square test statistic in a test of independence and determined that X²* = -4.23, with 10 degrees of freedom. Therefore, with alpha = 0.05, you know that:
In 1945 1,100 adult Americans were asked if they abstain from alcoholic beverages and 363 indicated that they were total abstainers. A recent pole asked 1,100 adult Americans if they abstain from al
State the degrees of freedom for this experiment: Using minitab or hand calculate the test statistic: (Enter to the nearest whole value) State the decision as either r for reject Ho or f for fail to
The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were measured for 10 students in a beginning computer-science course. The res
Let A, B, and C be independent random variables, uniformly distributed over [0,4 ], [0,2], and [0,3] respectively. What is the probability that both roots of the equation Ax^2 + Bx + C = 0 are real?
For the funtion f(x)=6x^2, make a table of slopes of secant lines and make a conjecture about the slope of the tangent line at x=2.