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Calculate n2 to measure the effect size for this study. Write a sentence demonstrating how a research report would represent the results of the hypothesis test and the measure of effect size.
Describe what is measured by the estimated standard error in the bottom of the independent-measures t statistic.
A box contains 5 tickets numbered 1,2,3,4,5 . Two tickets are drawn at random from the box. Find the chance that the numbers on the box differ by two or more if the draws are made
Compute r2 to measure the percentage of variance accounted for by the treatment effect? Provide a detailed response.
Find the number of standard deviations from the mean. Round to the nearest hundredths.
Statement N is sufficient and can determine the right answer. Statement M is sufficient and can determine the right answer.
Assuming that the 50% rate (shown above) is correct, find the range of usual values for the numbers of graduates among 380 who stay at their first job less than two years.
37% of households said they would feel secure if they had $50,000 in savings. You randomly select 8 different households and ask them if they would feel secure with $50,000 in savings. Find the prob
What is the probability (in terms of p) that a philosopher is able to successfully eat during any given single round? What value of p maximizes this probability?
The Acme Candy Company claims that 60% of the jawbreakers it produces weigh more than .4 ounces. Suppose that 800 jawbreakers are selected at random from the production lines. Would it be unusual fo
Compute the sample covariance and the sample correlation coefficient. Find the equation for the regression line of Y on X (best fit line for Y vs X).
A survey for brand recognition is done and it is determined that 68% of consumers have heard of Dull Computer Company. A survey of 800 randomly selected consumers is to be conducted. For such groups
A biomedical engineer is trying to develop genetic methods for extending the lifetimes of cells. In a control population of cells, he measures the following lifetimes.
Fifty-one percent of households said they would feel secure if they had $50,000 in savings. You randomly select 8 households and ask them if they would feel secure if they had $50,000 in savings. Fi
Five balls, numbered 1, 2, 3, 4, and 5 are placed in an urn. Two balls are randomly selected, and their numbers are noted. Find the pmf of the following random variables:
Assume that immediately after completing an interview with a visitor, the interviewer returns to the entrance gate and begins counting individuals as they enter the park. The 25th individual counted
Assume that the research group treats the population of visitors as an infinite population. Is this acceptable? Explain
The length of human pregnancies is approx. Normal with a mean of 266 says and a standard deviation of 16 days. What percent of all pregnancies lass between 234 and 298 days?
A multiple choice test has 15 questions, each having four possible answers of which only one is correct. If the questions are answered at random what is the probability of getting all of the right?
Consider choosing a five card poker hand from a standard deck of 52 playing cards. how many different hands are possible that can contain at least three hearts? order of cards is not important.
Given that the consumer uses a plastic card, there is a .19 probability that the consumer is 18 to 24 years old.
About 20% of the population is hopelessly romantic. If two people are randomly selected, what is the probability both are hopelessly romantic? What is the probability at least one is hopelessly roma