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One coin in a collection of 25 has two heads (both sides are heads). The rest are fair (one H and one T). A coin is chosen at random from the lot and tossed. It turns up heads six times in a row. What is the probability that it is the two headed coin?
Carry out the ANOVA and, if essential, post-hoc comparisons. Make a graph to represent group differences, and interpret ANOVA in a paragraph written in APA style.
For many years, TV executives used the guideline that 30 percent of the audiences were watching each of the prime-time networks and the 10 percent were watching cable stations on a weekday night. A random sample of 500 viewers in the Tampa - St.
No information is available about its value. How large a sample size is needed to estimate it to within 0.15 with 99% confidence?
What is the probability that a randomly chosen employee is an Administrator if the employee has the opportunity of gaining promotion next year?
The 30 members of an orchestra were asked how many instruments each could play. The results are set out in the frequency distribution. Calculate the mean number of instruments played:
Your high school graduating class had 564 members. Thirty-three percent of these are expected to attend college. The probability that less than 160 will attend college is
All college males and females who worked last summer. We conjectured before seeing the data that men are more likely to work. The hypotheses to be tested are?
A seminar is given to three levels of managers (highlevel, midlevel, lowlevel).The facilitators believe the evaluations may vary with the audience.
Graph one shows a number of observations that all are directly on trend line that moves from the top left of the graph to the bottom right.
Telephone interviews were conducted on a representative sample of 1,003 adults living in the United States. For this sample, 506 adults admitted that they have paid to download music
a) What is the purpose of sampling? b) What are some concerns and dangers of sampling?
How many ways are there to select a subcommittee of 7 members from among a committee of 21 and how many possible passwords are there if 7 of the letters of the alphabet can be used by the system?
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