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A sample of 150 people out of 240 from an industrial community and 60 out of 90 people from a rural communtiy suffered from a lung disease. At 90% confidence level, find the test value and verify if their proportions differ significantly. => 0.708, the proportions do n..

The number of people attending a movie in three different theaters during the last one week is tabulated as shown. At α = 0.01, find the F test value and test the claim that the mean number of people attending the movie in each of the theaters are the same. => 6...

The average number of physically handicapped people in 25 sections of 2 colleges are 6 and 4 with standard deviations 1.2 and 1.5. Find out the z score value and verify if the mean number of PHC people differ in both the colleges at 99.73% level of confidence. => 0.295..

The table shows the color preferences of people in different age groups. At α = 0.10, find the chi-square test value and check whether different colors are preferred at different age groups. => 6.291, color preference is dependent on the age group or 6.291, color preferenc..

A random sample was collected on the drinking habit of the people in a town. The results are tabulated as shown. At α = 0.01, find the chi-square test value and check if there appears to be a gender difference with respect to the drinking habit. => 95.22, dependent on the ..

In a certain town, a sample of 5000 eligible voters were chosen to study the relationship between the gender of the person and their participation in the last election. The results are summarized in the table. Men Women Voted 1400 1750 Did not vote 800 1050 At α = 0.10, find the chi-square te..

A survey reports that the average number of channels viewed daily by people above 55 years of age is 4.30. To test this report, a statistician selected 100 people above 55 years old and found their average as 4.36 per day with a standard deviation of 0.4 per day. Find the p -..

30 people were randomly assigned to one of six experimental conditions. At the end of the lecture, a measure of comprehension was obtained. The data is shown here. At α = 0.05, find the test value F A × B and check the interaction of the variables using a two-way ANO..

The average rate of reading (words per minute) of a random sample of 16 people after attending a program for two weeks are as shown. The standard deviation of the average rate of reading of people is 30 words per minute. Find the chi-square test value. At α = 0.0..

A survey reports that the average weight loss after a 15-week program of regular aerobic exercise was 7 pounds with a standard deviation of 4 pounds. To test this report, a statistician selected 40 people doing regular aerobic exercise and found the average weight loss as 8 pounds. Find t..