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Research suggests that liberals and conservatives re- spond differently to gaze cuing, which is the tendency to shift attention in the direction suggested by another
a. Test for a significant relationship using a =.05. How does the decision compare with the decision in problem 13? You should find that a larger sample increases the likelihood of a sig- nificant result.
b. Compute the phi-coefficient for these data. You should find that the sample size has no effect on the strength of the relationship.
1. a large tank of fish from a hatchery is being delivered to a lake. the hatchery claims that the mean length of fish
Compare the expected revenue generated by this auction with the expected revenue generated by a second-price auction with reserve price
The business estimates the true population standard devuation is around $2,400.If yhe confidence level is 90%, find the required sample size in order to meet the desired accuracy.
Is there evidence the On-the-Move company has less claims? Using the 0.10 level of significance, What is the conclusion?
a group of psychologists examined the effect of alcohol on the reactions to a threat. after obtaining a blood alcohol
At significance levels of .05 and .01 test H 0 : the factors A and B are independent.
find the z scores that separate the middle 48 of the distribution from the area in the tails of the standard normal
The researcher found that Abraham Lincoln's educational score did not correlate highly with the expected variable. What is wrong?
An education expert is researching teaching methods and wishes to interview teachers from a particular school district. She randomly selects ten schools from the district and interviews all of the teachers at the selected schools.
let t be an exponential random variable for the failure of the screen for a television set with a mean time to failure
Find the probability that a random selection of 9 songs will have mean length of 186.30 seconds or less. Assume distribution of the lengths of the songs is normal.
when 100 students took a test the average score was 77.1. two more students took the test. the sum of their scores was
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