A newspaper published an article about a study in which researchers subjected laboratory gloves to stress. Among 250 vinyl gloves, 56% leaked viruses. Among 250 latex gloves, 6% leaked viruses. Using the accompanying display of the technology results, and using a 0.01 significance level, test the claim that vinyl gloves have a greater virus leak rate than latex gloves. Let vinyl gloves be population 1 A Click the icon to view the technology results O A. Ho P1- P2 O B. Ho P, + P2 H: P P2 OE. H P, P2 OC. Hg P=P2 H P, P2 O D. Ho P1
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- What is meant by the sample space of an experiment?In a study, it is desired to test whether there is a correlation between the habit of doing sports and the income level at the 0.01 significance level. While the habit of doing sports is categorized as "existing" and "absent", the income level is categorized as "low", "medium" and "high". The collected observation results are shared in the table below. LOW MEDIUM HIGH TOTALYES 23 10 30 63NONE 11 16 34 61TOTAL 34 26 40 124Accordingly, what is the table value used when testing the claim?A case control study was conducted to investigate a relationship between the colors of helmets worn by motorcycle drivers and whether they are injured or killed in a crash. Results are given in the accompanying table. Using a .01 significance level, test the claim that injuries are independent of helmet color. Blackhelmet white helmet Yellow helmet Red helmet Blue helmet Not injured 472 362 35 161 69 Injured 195 105 9 69 33
- The Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to full-service restaurant chains. One of the variables in the study is meal price, the average amount paid per person for dinner and drinks, minus the tip. Suppose a reporter for the Sun Coast Times thought that it would be of interest to her readers to conduct a similar study for restaurants located on the Grand Strand section in Myrtle Beach, South Carolina. The reporter selected a sample of 8 seafood restaurants, 8 Italian restaurants, and 8 steakhouses. The data in Sheet 7 show the meal prices ($) obtained for the 24 restaurants sampled. Use alpha = 0.05 to test whether there is a significant difference among the mean meal price for the three types of restaurants. Sheet 7 Italian Seafood Steakhouse 12 16 24 13 18 19 15 17 23 17 26 25 18 23 21 20 15 22 17 19 27 24 18 31 Select one: a) Fstat = 7.33 > Fcrit = 3.47, insufficient evidence to reject the null…Randomly-selected residents in two cities were asked to identify which of four different issues was the most important to them. Using a 0.05 significance level, test whether the issue choice is independent of the city of residence. Health Care Drug Addiction Racism Climate Change City A 114 56 49 81 City B 67 39 60 34In a study to determine if the nitrogen content of the soil in Wyoming is significantly different from the nitrogen content of the soil in North Dakota, 34 independent random soil samples from Wyoming and 36 from North Dakota were taken. Given the testing statistics below, determine if the data provides sufficient evidence to conclude that the nitrogen content of the soil in Wyoming is significantly different from the nitrogen content of the soil in North Dakota, at the 1% significance level. H0:μw=μnHa:μw≠μn The test statistic is t0=2.653 t0.005=±2.382
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