Chapter 7, Problem 7.16AC

Opinions are split about a coffee​ company's pumpkin-flavored coffee​ (PFC). Yet every year over the last five years the consumption of​ pumpkin-flavored goods has increased. If we look at the​ numbers, it also becomes clear why a leading coffee company keeps offering the PFC earlier and earlier every year. According to a​ magazine, the amount spent by PFC buyers at the coffee company is about​ 17% higher than​ non-PFC buyers. The accompanying table shows a random sample of eight​ consumers, the amount they spend per​ week, y, and the number of PFCs​ purchased, x, per week. PFC Spending     1 13.17     8 38.65     3 19.49     2 9.56     4 15.85     1 21.82     5 37.53     3 13.69 t= 3.07   Identify the p-value p-value= ​(Round to three decimal places as​ needed.)

Opinions are split about a coffee​ company's pumpkin-flavored coffee​ (PFC). Yet every year over the last five years the consumption of​ pumpkin-flavored goods has increased. If we look at the​ numbers, it also becomes clear why a leading coffee company keeps offering the PFC earlier and earlier every year. According to a​ magazine, the amount spent by PFC buyers at the coffee company is about​ 17% higher than​ non-PFC buyers. The accompanying table shows a random sample of eight​ consumers, the amount they spend per​ week, and the number of PFCs purchased per week. PFC Spending     2 13.88     7 39.11     4 19.79     1 9.84     3 15.43     1 21.52     5 37.39     3 13.85   The slope is b1=4.465 The​ y-intercept is b0=6.840   Because the slope is positive, it can be concluded that one extra PFC purchase per week will increase the average amount of spending per week by 4.46 dollars.     Predict…

Opinions are split about a coffee​ company's pumpkin-flavored coffee​ (PFC). Yet every year over the last five years the consumption of​ pumpkin-flavored goods has increased. If we look at the​ numbers, it also becomes clear why a leading coffee company keeps offering the PFC earlier and earlier every year. According to a​ magazine, the amount spent by PFC buyers at the coffee company is about​ 17% higher than​ non-PFC buyers. The accompanying table shows a random sample of eight​ consumers, the amount they spend per​ week, y, and the number of PFCs​ purchased, x, per week.   PFC Spending     1 13.17     8 38.65     3 19.49     2 9.56     4 15.85     1 21.82     5 37.53     3 13.69   α=​0.05   Calculate the test statistic for the hypothesis test.   t= ​(Round to two decimal places as​ needed.)

Opinions are split about a coffee​ company's pumpkin-flavored coffee​ (PFC). Yet every year over the last five years the consumption of​ pumpkin-flavored goods has increased. If we look at the​ numbers, it also becomes clear why a leading coffee company keeps offering the PFC earlier and earlier every year. According to a​ magazine, the amount spent by PFC buyers at the coffee company is about​ 17% higher than​ non-PFC buyers. The accompanying table shows a random sample of eight​ consumers, the amount they spend per​ week, y, and the number of PFCs​ purchased, x, per week. PFC Spending     1 13.17     8 38.65     3 19.49     2 9.56     4 15.85     1 21.82     5 37.53     3 13.69 α=​0.05 t= 3.07 p-value= 0.022   Construct a​ 95% confidence interval for the population slope.   UCL = 6.69 LCL = 0.75   What conclusions about PFC purchases and spending can be drawn from these​…

Opinions are split about a coffee​ company's pumpkin-flavored coffee​ (PFC). Yet every year over the last five years the consumption of​ pumpkin-flavored goods has increased. If we look at the​ numbers, it also becomes clear why a leading coffee company keeps offering the PFC earlier and earlier every year. According to a​ magazine, the amount spent by PFC buyers at the coffee company is about​ 17% higher than​ non-PFC buyers. The accompanying table shows a random sample of eight​ consumers, the amount they spend per​ week, and the number of PFCs purchased per week.   PFC Spending     2 13.88     7 39.11     4 19.79     1 9.84     3 15.43     1 21.52     5 37.39     3 13.85 Calculate the slope and​ y-intercept for the regression formula.   The slope is b1=4.465​ The​ y-intercept is b0=6.840   Provide an interpretation for the value of the slope.   Because the slope is positive, it can be…

Q5.

Dave Fletcher, the general manager of North Carolina Engineering Corporation (NCEC), thinks that his firm’s engineer-ing services contracted to highway construction firms are directly related to the volume of highway construction business contractedwith companies in his geographic area. He wonders if this is reallyso, and if it is, can this information help him plan his operationsbetter by forecasting the quantity of his engineering servicesrequired by construction firms in each quarter of the year? Thefollowing table presents the sales of his services and total amountsof contracts for highway construction over the past eight quarters:   a) Using this data, develop a regression equation for predictingthe level of demand of NCEC’s services. b) Determine the coefficient of correlation and the standard errorof the estimate.

Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.

use the given data on the societal cost of crashes and the approximate U.S. population of 325 million to calculate the average social cost per person.     U.S. Data (2016 estimates): Car Crash fatalities = 40,200; Car Crash injuries = 4.6 million; cost to society = $430 billion. (source: National Safety Council.) • Global Data (estimated); car crash fatalities = ≈ 50 million; car crash fatalities with victim's underage 45 ≈ 400,000. (Source: Association Safe International Road Travel.) About how often (once every x minutes or x seconds) on average is a person killed in a car crash in the United States? How often is a person injured in a car crash. The answer to this question is about once every 13 minutes; about once every 7 seconds. use the given data on the societal cost of crashes and the approximate U.S. population of 325 million to calculate the average social cost per person. The answer to this is about $1,320 per person. I forgot to put this so the answer can be solved. I…