In a survey of 1.954 cellphone owners, adults aged 18 and over, 743 reported that they use their phone to keep themselves occupied during commercials or breaks in something they were watching on tolovinion, whle 430 used ther phone to check whether something they heard on television is true Construct a 00 conidence nterval estmate for the poputaton proportion of adult celphone owners who report that they use ther phone to check whether somethng they heard on televsion was true What s the margn of enor? Lower imt Upper imit Margn of emor .
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- Has the researcher tested for representativeness: comparing the sex distribution ofthe population and of respondents, for example, or their ages, ethnicity, education, orincome?A traditional performance rating benchmark (or guideline) for “normal” effort, or speed, is dealing 52 cardsinto four piles, forming a square with each pile one footapart, in 0.50 minute. Conduct an experiment with one ormore fellow students in which one deals the cards andthe others rate the dealer’s performance, and then compare these subjective ratings with the actual time of thedealer.QUESTION 15 Suppose that if the null that alpha and beta both equal one is true a tost statistic you have calculated s dnitributed as an Fstatistic with 3 and 30 degroes of freedom for the numerator and denominator respectivoly What critical value cuts off 5% of the upper tal of this disitritution? OA.5.168 O B.9 277 OC8617 O D. None of the above
- Plz answer correctly asapAn 18-month-old child was admitted to the hospital after falling into a hot bath. Two weekslater, she was doing well and set to return home. Her mother noticed that the little girl askedfor a drink every time she saw one, and she often sucked on a wet washcloth. When thechild’s mother asked about this behavior, the nurses told her it was normal—they would notask a physician for permission to give the girl a drink. The nurses told the mother that herchild was doing well and that she should go home and get some sleep.When the mother returned early the next morning, she knew that something was verywrong with her child. The medical team was notified. They administered naloxone, a drugused to block the effects of opioids. They finally allowed the girl to have a drink, and she swallowed a liter of juice. The medical team determined that the girl should not be given anymore narcotics. They gave verbal orders.A nurse entered the girl’s room that afternoon with a syringe of methadone. The…A car manufacturer wants to instalt air conditioners in their cars. they must not be defective so the car manufacturer wi test each unt n ves-m e ar will fair is 7 and units fail independently of each other. Suppose the car manutacturer has an orter for 10 cars tday which Intends to compet We w madn t a order to calculate the probabiny that the manufacturer will have te test fewer than 12 units in ordero compiete the orter fer cars wou reure ghe tngeree negative binomial distribution in the form of NEGBINOM.DISTOSR Cumlative cumulative-
- Pisa Pizza, a seller of frozen pizza, is considering introducting a healthier version of its pizza that will be low in cholesterol and contain no trans fats. The firm expects that sales of new pizza will be $20 million per year. While many of these sales will be to new customers, Pisa Pizza estimaes that 40% will come from customers who switch to the new, healthier pizzai nstead of buying the original version. a) Assume cusotmer will spend the same amount on either version. What level of incremental sales is associated with introducing the new pizza? b) Suppose that 50% of hte cusomters who will switch from Pisa Pizza's orignial pizza to its healthier pizza will switch to another brand if Pisa PIzza does not introduce a healthier pizza. What level of incremental sales is associated with introducing the new pizza in this case?Question: 18 short answer Five Years Ago Today 82 88 112.5 54 45 36 The test statistic for the difference between the two population means is Select one: O a. -.47 O b. -3 O c. -.65 O d. -1.5 pleasePls answer in short 10-15 sentences only !!