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- Discuss the assumptions for one-sampled t-test and why they are important.Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with \mu = 96 and \sigma = 27. (a) What proportion of children aged 13 to 15 years old have scores on this test above 78 ? (NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.) Answer: (b) Enter the score which marks the lowest 25 percent of the distribution. Answer: (c) Enter the score which marks the highest 15 percent of the distribution.Section of an oil field has been divided into 48 equal sub-areas. Counting the oil wells in the 48 sub-areas gives the following frequency distribution : Number of 0 1 2 3 4 5 6 7oil wellsNumber of 5 10 11 10 6 4 0 2sub-areasIs there any evidence from these data that the oil wells are not distributed randomly throughout the section of the oil field?
- Find the Anova for: Group1: 5,1,11,2,8 Group2: 0,1,4,6,3 Group3: 13,9,8,15,7Let p be the population proportion for the following condition. Find the point estimates for p and q. Of 952 children surveyed, 108 plan to join the armed forces in the future. Part 1 The point estimate for p, p^, is ___ The point estimate for? q,q^, is ___Data from 14 cities were combined for a 20-year-period, and the total 280 city-years included a total of 168 homicides. After finding the mean number of homicides, find the probability that a randomly selected city has the followng number of homicides. Homicides each city-year: 0, 1, 2, 3, 4 Actual results: 155, 90, 28, 6, 1 P(0)=