Ex 8. An airline's data indicate that 50 percent of people who begin the online process of booking a flight never complete the process and pay for the flight. To reduce this percentage, the airline is considering changing its website so that the entire booking process, including flight and seat selection and payment, can be done on two simple pages rather than the current four pages. A random sample of 300 customers who begin the booking process are exposed to the new system, and 117 of them do not complete the process.
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Ex 8. An airline's data indicate that 50 percent of people who begin the online process of booking
a flight never complete the process and pay for the flight. To reduce this percentage, the airline is
considering changing its website so that the entire booking process, including flight and seat
selection and payment, can be done on two simple pages rather than the current four pages. A
random sample of 300 customers who begin the booking process are exposed to the new system,
and 117 of them do not complete the process.
a. Formulate the null and alternative hypotheses needed to attempt to provide evidence that
the new system has reduced the noncompletion percentage.
b. Use critical values to perform the hypothesis test by setting α equal to .10, .05, .01, and .001
We have sample and its results as
Sample size n=300
And x=117
We can find out the p, by sing the given information.
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- COVID-19 has caused several shortages: paper products, hand sanitizer, and even nurses. When a hospital needs nurses, they might call Fastaff, which has been sending its nurses all around the country. Once a nurse gets an assignment, they pack their bags and need to be there within a week. During a pandemic, these assignments come with some risk, but these nurses are well compensated for their time. “They really run into the fire,” explained Fastaff Senior VP of Marketing Lauren Pasquale-Bartlett. “They’re very brave, they’re like the special forces of nursing. They go in for these really critical assignments.” The need for traveling nurses across the country has increased drastically because of the coronavirus pandemic. One of the state’s needing nurses is Ohio, according to Pasquale-Bartlett. “Particularly in the last few weeks we’ve seen a two to three increase in demand in requests for nurses to come in and support the staff,” she said. “That really indicates to us that it’s an…COVID-19 has caused several shortages: paper products, hand sanitizer, and even nurses. When a hospital needs nurses, they might call Fastaff, which has been sending its nurses all around the country. Once a nurse gets an assignment, they pack their bags and need to be there within a week. During a pandemic, these assignments come with some risk, but these nurses are well compensated for their time. “They really run into the fire,” explained Fastaff Senior VP of Marketing Lauren Pasquale-Bartlett. “They’re very brave, they’re like the special forces of nursing. They go in for these really critical assignments.” The need for traveling nurses across the country has increased drastically because of the coronavirus pandemic. One of the state’s needing nurses is Ohio, according to Pasquale-Bartlett. “Particularly in the last few weeks we’ve seen a two to three increase in demand in requests for nurses to come in and support the staff,” she said. “That really indicates to us that it’s an…COVID-19 has caused several shortages: paper products, hand sanitizer, and even nurses. When a hospital needs nurses, they might call Fastaff, which has been sending its nurses all around the country. Once a nurse gets an assignment, they pack their bags and need to be there within a week. During a pandemic, these assignments come with some risk, but these nurses are well compensated for their time. “They really run into the fire,” explained Fastaff Senior VP of Marketing Lauren Pasquale-Bartlett. “They’re very brave, they’re like the special forces of nursing. They go in for these really critical assignments.” The need for traveling nurses across the country has increased drastically because of the coronavirus pandemic. One of the state’s needing nurses is Ohio, according to Pasquale-Bartlett. “Particularly in the last few weeks we’ve seen a two to three increase in demand in requests for nurses to come in and support the staff,” she said. “That really indicates to us that it’s an…
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