An article described a study that compared flu vaccine administered by injection and flu vaccine administered as a nasal spray. Each of the 8,000 children under the age of 5 who participated in the study received both a nasal spray and an injection, but only one was the real vaccine and the other was salt water. At the end of the hu season, it was determined that of the 4,000 children receiving the real vaccine by nasal spray, 3.1% got the fu or the 4,000 receiving the real vaccine by injection, 36% got the flu. USE SALT (a) Why would the researchers give every child both asal spray and an injection? It is possible that a patient's knowledge of being given both treatments wil itself contribute positively to the health of the patient, so the researchers give them the perception that they got both It is possible that a patient's knowledge of being given one of the treatments will set contribute positively to the health of the patient, so the archers want to prevent the patient from nowing which treatment they got O is possible that a patient's knowledge of being given a treatment will tell contribute positively to the beach of the patient, so the researchers give than the false perception that they got the ment when they got one It is point that being given tieth treatments will contributively to the health of the patient, so the researchers give them both confidence interval to estimate the difference in the proportion of children who got the after being vaccinated with an injection and the proportion of children who got the end vaccinated with the bra. (Use injection Pasal spray Use a table or SALT Round your answers to the decimale) An article described a study that compared flu vaccine administered by injection and flu vaccine administered as a nasal spray. Each of the 8,000 children under the age of 5 who participated in the study received both a nasal spray and an injection, but only one was the real vaccine and the other was salt water. At the end of the flu season, it was determined that of the 4,000 children receiving the real vaccine by nasal spray, 3.1 got the flu of the 4,000 receiving the real vaccine by injection, 8.6% got the flu. A USE SALT (a) Why would the researchers give every child both a nasal spray and an injection? It is possible that a patient's knowledge of being given both treatments will itself contribute positively to the health of the patient, so the researchers give them the perception that they got both. It is possible that a patient's knowledge of being given one of the treatments will itself contribute positively to the health of the patient, so the researchers want to prevent the patient from knowing which treatment they got It is possible that a patient's knowledge of being given treatment will self contribute positively to the health of the patient, so the researchers give them the false perception that they got a treatment when they got none It is possible that being given both treatments will contribute positively to the health of the patient, so the researchers give them both (b) Use a confidence interval to estimate the difference in the proportion of children who get the nu after being vaccinated with an injection and the proportion of children who got the hater being vaccinated with the nasal spray. (Use Pection-Prasat pe table or SALT. Round your answers to three decimal places) An article described a study that compared flu vaccine administered by injection and flu vaccine administered as a nasal spray. Each of the 8,000 children under the age of 5 who participated in the study received both a nasal spray and an injection, but only one was the real vaccine and the other was salt water. At the end of the ruseason, it was determined that of the 4,000 children receiving the real vaccine by nasal spray, 31% got the nu. Of the 4,000 receiving the real vaccine by injection, got the 1. USE SALT (a) Why would the researchers give every child both a nasal spray and an injection? It is possible that a patient's knowledge of being given toth treatments will tell contributer positively to the health of the patient, to the researchers give them the perception that they got both It is possible that a patient's knowledge of being given one of the treatments will contribute positively to the health of the patient, so the researchers want to prevent the patient from knowing which treatment they got. it is possible that a patient's knowledge of being over treatment was contribute positively to the health of the patient, to the researchers give them the false perception that they got a treatment when they got none ti posible that being given tieth treatments will telt contribute positively to the health of the patient, so the researchers give them both (b) Use a 99% confidence interval to estimate the difference in the proportion of children who get the nu after being vaccinated with an injection and the proportion of children who get the fu cher being vaccinated with the nasal spray. Pection Procesory sette or SALT. Hound your answers to three decimal places)