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To determine whether there is a difference in the proportion of viewers watching the three channels.
In a particular market there are three commercial television stations, each with its own evening news program from 6:00 to 6:30 P.M. According to a report in this morning\'s local newspaper, a random sample of 150 viewers last night revealed 53 watched the news on WNAE (channel 5), 64 watched on WRRN (channel 11), and 33 on WSPD (channel 13). At the .05 significance level, is there a difference in the proportion of viewers watching the three channels?
The singer has the following variety of songs, in no particular order: 7 relationship songs, 6 songs about people, 4 reflective songs, and 4 songs about places.
Make up a scatter diagram with 10 dots for each of the following situations:
When the names of all the students at Omega University were dropped to a fishbowl, they would include:
Find the range, standard deviation, and variance for the scores.
Using sample, determine a 98% confidence interval for mean weight of whole daily output.
A major benefit of two-way ANOVA over several one-way ANOVAs, If an F test for interaction is significant.
A study group of long distance phone calls made from the corporate offices of Pepsi Bottling Group, Inc., in Somers, New York, revealed the length of the calls, in minutes, follows normal probability distribution.
Using the original data, estimate the population standard deviation with 90% probability.
Any analysis required to check the required conditions (note that if you find that you cannot meet the required conditions for the test you expected to do, you must use the appropriate non-parametric test)
How many ways can she choose 4 dissimilar rides if order does not matter? If she has chosen the first weeks rides, how many ways can she choose four more different rides for second week? Suppose that order does not matter.
Determine Probability values based on discrete distribution.You roll a fair die three times.
It has been estimated that 30% of all farms are family-owned. In a sample of 12 farms, what is the probability that exactly three farms are family owned?
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