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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.4: Scatter Plots And Line Of Fit

Problem 14HP

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A market researcher's claim is that women spend more time each day on Facebook than men. If p1 represents the proportion of women on Facebook and p2 represents the proportion of men on Facebook, how would the researcher's claim be represented? a. p1 = p2 b. p1 > p2 c. p1 < p2
Social Media Use. A marketing firm would like to test-market the name of a new energy drink targeted at 18- to 29-year-olds via social media. A study by the Pew Research Center found that 35% of U.S. adults (18 and older) do not use social media (Pew Research Center website, October 2015). The percentage of U.S. young adults age 30 and older is 78%. Suppose that the percentage of the U.S. adult population that is either age 18–29 or uses social media is 67.2%.a. What is the probability that a randomly selected U.S. adult uses social media?b. What is the probability that a randomly selected U.S. adult is aged 18–29?c. What is the probability that a randomly selected U.S. adult is 18–29 and a user of social media?
Use graphpad and the T calculator: While managing a band, you want to see if your band will sell more merchandise at its shows if the band lead singer take his shirt off during their performances. For the next 18 shows, the band alternates: on the first, third, fifth, etc. shows band integrates a video screen. On the second, fourth, sixth, etc. shows the singer doesnt wear it. Merch sales per concertgoer, shirt off: 6.45, 2.75, 10.02, 8.33, 7.19, 5.42, 5.03, 7.30, 4.83 Merch sales per concertgoer, shirt on: 4.84, 3.61, 7.93, 4.20, 9.17, 3.13, 7.91, 4.68, 3.37 a. on average how much more merch do concert goers purchase win the lead singer shirt is off round to the nearest cent? b. use a two sample T interval to come up with 90% confidence interval regarding the increase in merch sales with the lead singer’s shirt is off round appropriately to the penny c.The band is about to tour Canada, and the lead singer, pondering the cold climate, says that he’ll only take his shirt off if…
Tips. In restaurants, servers rely on tips as a majorsource of income. Does serving candy after the mealproduce larger tips? To find out, two waiters determinedrandomly whether or not to give candy to 92 diningparties. They recorded the sizes of the tips and reportedthat guests getting candy tipped an average of 17.8%of the bill, compared with an average tip of only 15.1%from those who got no candy. (Source: “Sweetening theTill: The Use of Candy to Increase Restaurant Tipping.”Journal of Applied Social Psychology 32, no. 2 [2002]:300–309)a) Was this an experiment or an observational study?Explain.b) Is it reasonable to conclude that the candy causedguests to tip more? Explain.c) The researchers said the difference was statisticallysignificant. Explain in this context what that means.
Multiple choice, I need to choose all that apply.
Critics of television often refer to the detrimental effects that all the violence shown ontelevision has on children. However, there may be another problem. It may be thatwatching television also reduces the amount of physical exercise, causing weight gains. Asample of 15 10-year-old children was taken. The number of pounds each child wasoverweight was recorded (a negative number indicates the child is underweight). Inaddition, the number of hours of television viewing per week was also recorded. Thesedata are listed here.Television 42 34 25 35 37 38 31 33Overweight 18 6 0 −1 13 14 7 7Television 19 29 38 28 29 36 18Overweight −9 8 8 5 3 14 −7a) Draw the scatter diagram.b) Calculate the sample regression line and describe what the coefficients tell youabout the relationship between the two variables.
I put an example of hey they want me to do it
Two seemingly equally excellent students are vying for an academic honor where only one must have to be chosen to get the award. The following are their grades used as basis for the award: (8 points)Kathlyn : 91, 90, 94. 93, 92Renier : 92, 92, 90, 94, 92Whom do you think deserves the award? Explain
How can you choose values for x when making a table of values representing a real world situation. Choose values that (select). For example, games played must be (select)
An aerosolized vaccine for measles was developed in Mexico and has been used on 44 million children since 1980. Aerosolized vaccines have the advantages of being able to be administered by people without clinical training and do not cause injection‐associated infections. The percentage of children developing an immune response to measles after receiving the subcutaneous injection of the vaccine is 95%,95%, and for those receiving the aerosolized vaccine, it is 85%85% . There are 2020 children to be vaccinated for measles using the aerosolized vaccine in a small rural village in India. We are going to count the number who developed an immune response to measles after the vaccination. (b) What is the probability that at least one child does not develop an immune response to measles after receiving the aerosolized vaccine? (Enter your answer as a proportion rounded to four decimal places.)
An aerosolized vaccine for measles was developed in Mexico and has been used on 44 million children since 1980. Aerosolized vaccines have the advantages of being able to be administered by people without clinical training and do not cause injection‐associated infections. The percentage of children developing an immune response to measles after receiving the subcutaneous injection of the vaccine is 95%,95%, and for those receiving the aerosolized vaccine, it is 85%85% . There are 2020 children to be vaccinated for measles using the aerosolized vaccine in a small rural village in India. We are going to count the number who developed an immune response to measles after the vaccination. What would be the probability that at least one child does not develop an immune response to measles if all children were vaccinated using the subcutaneous injection of the vaccine? (Enter your answer as a proportion rounded to four decimal places.)
Atlanta Airlines routinely overbooks its flight from At- lanta to Boston. Overbooking discounted seats can be expensive because providing a bumped passenger with a last-minute flight on a competing carrier can cost $450. A 120-passenger jet costs about $6000 to operate from Atlanta to Boston. The average ticket price is $300. a. Given the frequency of no-shows in the following table, how many seats should be overbooked? b. Atlanta Air offers special rates on its Atlanta/Boston route for the holidays. How would a $200 ticket price af- fect the number of seats overbooked?

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Calculator What is the value of x? Enter your answer in the box. units A 10 P 15 D 42 R