Fifteen persons at the regional blood center on Saturday are typed for blood and the following counts are found. Blood group O A BAB Number of 3 5 persons .2 6 On the next Saturday, if a person that comes in is selected at random, what is the probability that that person's blood group is Type B? 47 0.4 0.6 O.15 1
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- can you find two tailed test p value for given data sample size 14 test statistics -2.23A popular theory is that presidential candidates have an advantage if they are taller than their main opponents. Listed are heights (in centimeters) of randomly selected presidents along with the heights of their main opponents. Complete parts (a) and (b) below. Height (cm) of President 181 180 167 192 184 178 Height (cm) of Main Opponent 169 184 169 171 194 183 a. Use the sample data with a 0.05 significance level to test the claim that for the population of heights for presidents and their main opponents, the differences have a mean greater than 0 cm. In this example, Hd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the president's height minus their main opponent's height. What are the null and alternative hypotheses for the hypothesis test? Ho Hd 0 cm = H₁ Hd > 0 cm (Type integers or decimals. Do not round.) Identify the test statistic. t=0.41 (Round to two decimal places as needed.) Identify the…#1
- A popular theory is that presidential candidates have an advantage if they are taller than their main opponents. Listed are heights (in centimeters) of randomly selected presidents along with the heights of their main opponents. Complete parts (a) and (b) below. Height (cm) of President 178 183 182 180 200 179 Height (cm) of Main Opponent 170 189 179 180 195 172 a. Use the sample data with a 0.01 significance level to test the claim that for the population of heights for presidents and their main opponents, the differences have a mean greater than 0 cm. In this example, μd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the president's height minus their main opponent's height. What are the null and alternative hypotheses for the hypothesis test? H0: μd equals= greater than> less than< not equals≠ _________ CM H1: μd…For each situation, name the type of bias that may occur in the data collected. Explain your answer. a) A school wants to gather parent opinions on the current cell phone policy at the school. They have sent letters with a survey for the parent to return to the school board office. b) A survey about teaching strategies used in the “Secondary Classes” (7-12th grades) for a school district was handed out to a random sample of teachers from the three high schools in the district.Less than 20% of the surveys were returned. c) A survey with the question “Do you agree that a national system of health insurance should be favored because it would provide health insurance for everyone and reduce administrative costs?”A popular theory is that presidential candidates have an advantage if they are taller than their main opponents. Listed are heights (in centimeters) of randomly selected presidents along with the heights of their main opponents. Complete parts (a) and (b) below. Height (cm) of President 179 184 176 192 185 173 Height (cm) of Main Opponent 173 177 172 169 187 170 a. Use the sample data with a 0.05 significance level to test the claim that for the population of heights for presidents and their main opponents, the differences have a mean greater than 0 cm. In this example, μd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the president's height minus their main opponent's height. What are the null and alternative hypotheses for the hypothesis test? Ho: Hd Hid cm (Type integers or decimals. Do not round.) cm
- A popular theory is that presidential candidates have an advantage if they are taller than their main opponents. Listed are heights (in centimeters) of randomly selected presidents along with the heights of their main opponents. Complete parts (a) and (b) below. Height (cm) of President 181 172 174 177 187 172 Height (cm) of Main Opponent 166 182 171 169 188 169 a. Use the sample data with a 0.01 significance level to test the claim that for the population of heights for presidents and their main opponents, the differences have a mean greater than 0 cm. In this example, μd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the president's height minus their main opponent's height. What are the null and alternative hypotheses for the hypothesis test? H0: μd (>,≠,=,<) ___ cm H1: μd (>,≠,=,<) ___ cm (Type integers or decimals. Do…A popular theory is that presidential candidates have an advantage if they are taller than their main opponents. Listed are heights (in centimeters) of randomly selected presidents along with the heights of their main opponents. Complete parts (a) and (b) below. Height (cm) of President 191 171 169 177 187 174 Height (cm) of Main Opponent 170 174 178 184 181 177 a. Use the sample data with a 0.01 significance level to test the claim that for the population of heights for presidents and their main opponents, the differences have a mean greater than 0 cm. In this example, μd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the president's height minus their main opponent's height. What are the null and alternative hypotheses for the hypothesis test? H0: μd = _____CM (equals= not equals≠ greater than> less than<) H1: μd =…Tutorial 1 Identify the population and the sample. 1) A surve y of 1378 Malaysian households found that 27% of the households own a computer. 2) W hen 1094 Malaysian households were surveyed; it was found that 67% of them owned two cars. 3) A survey of 2625 elementary school children found that 28% of the children could be classified as obese. Determine whether the numerical value is a parameter or a statistic. Explain your reasoning. 4) A recent sur vey by the alumni of a major university indicated that the average salary of 10,500 of its 175,000 graduates was RM95,000. 5) The average salary of all assembly - line employees at a certain car manufacturer is RM41,000.. 6) A survey of 1162 students was taken from a university with 10,000 students. Provide an appropriate response. 7) Explain the difference between a sample and a population. Determine whether the data are qualitative or quantitative. 8) the colors of automobiles on a used car lot 9) the number of complaint letters received…
