In a field study, total suspended solids (mg/l) in six aflaj were estimated every month adding up to a total of 72 samples (= 6 x12). During the statistical analysis, the calculated Between groups SS =6710.8 and the Within groups MS = 142.7. Using this information fill the gaps in the following ANOVA table: ANOVA Table F calculated Degree of freedom (df) F Tabular (2 tailed) Source of Sum of Mean Square variation Squares (SS) (MS)
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- Question 21 Only 11% of registered voters voted in the last election. Will voter participation change for the upcoming election? Of the 380 randomly selected registered voters surveyed, 61 of them will vote in the upcoming election. What can be concluded at the αα = 0.01 level of significance? A.)For this study, we should use Select an answer z-test for a population proportion t-test for a population mean B.)The null and alternative hypotheses would be: -H0:H0: ? p μ Select an answer < > ≠ = (please enter a decimal) -H1:H1: ? μ p Select an answer = ≠ < > (Please enter a decimal) c. )The test statistic ? z t = (please show your answer to 3 decimal places.)Question 02 There is a claim that drink driving has been very common in high ways. The Highway Police randomly caught 300 drivers for breath alcohol test and found that 14% of drivers have breath alcohol over the legal limit. At 4% level of significance, use the p-value approach to test the hypothesis that the percentage of drivers who are drink driving is more than 10%.Table 2 on page 603 is based on paired-samples t tests, a technique that we do not cover in this course. However, based on the p-values listed in the second to last column of the table, state three measures that showed a statistically significant change over 24 months for mothers and children in the MST-BSF group. Indicate whether the change was an increase or a decrease, and whether the change was in the mother or the child.?
- Table 4.20 appeared in a national study of 15- and 16-year-old adolescents. The event of interest is ever having sexual intercourse. Analyze these data and summarize in a one-page report, including description and inference about the effects of both gender and race. Note: No need for a whole page, just need to include related information.Table 7 lists the numbers of violent crimes reported to police on randomly selected daysfor this year. The data are taken from three large cities of about the same size.TABLE 7Citi A City B City C5 2 89 4 1212 1 103 13 39 7 97 6 1413At 5% significance level, will you conclude that the numbers of violent reported to police forthree large cities is the sameQuestion 19 A manufacture makes light-weight sneakers, and claim that the average weight of one sneaker is no bigger than 2 pounds. To verify this claim, a sample of 9 sneakers are weighed, and the sample mean is 2.4 pounds with the sample variance of 0.25 pounds^2. Assuming the weights of sneakers are normally distributed, we would like to test the claim of the manufacture at 10% level of significance. Please select the correct statement from below: