Question

In: Statistics and Probability

. The amount spent in billions for online ads per year is shown below. Construct a...

. The amount spent in billions for online ads per year is shown below. Construct a time series plot of the data and describe the trend. please help with graphing and explaining

year 2010 2011 2012 2013 2014 2015
amount $68.4 $80.2 $94.2 $106.1 $119.8 $132.1

Solutions

Expert Solution

Year Amount t
2010 68.4 1
2011 80.2 2
2012 94.2 3
2013 106.1 4
2014 119.8 5
2015 132.1 6
Mean 100.1333 3.5
N 6 6
Sum 600.8 21

The trend is positive.

Y'=a+bX

Wher X= t (time series)

SUMMARY OUTPUT
Regression Statistics
Multiple R 0.999789706
R Square 0.999579456
Adjusted R Square 0.99947432
Standard Error 0.550627348
Observations 6
ANOVA
df SS MS F Significance F
Regression 1 2882.580571 2882.580571 9507.49 6.63E-08
Residual 4 1.212761905 0.303190476
Total 5 2883.793333
Coefficients Standard Error t Stat P-value Lower 95%
Intercept 55.21333333 0.512606164 107.7110211 4.46E-08 53.79011
t 12.83428571 0.131625112 97.50636132 6.63E-08 12.46884

orchestra answered 2 years ago
Next > < Previous

Related Solutions

A marketing researcher wants to estimate the mean amount spent per year​ ($) on a web...
A marketing researcher wants to estimate the mean amount spent per year​ ($) on a web site by membership member shoppers. Suppose a random sample of 100 membership member shoppers who recently made a purchase on the web site yielded a mean amount spent of $55 and a standard deviation of $54. a. Is there evidence that the population mean amount spent per year on the web site by membership member shoppers is different from $47? (Use .10 level of...
A marketing researcher wants to estimate the mean amount spent per year​ ($) on a web...
A marketing researcher wants to estimate the mean amount spent per year​ ($) on a web site by membership member shoppers. Suppose a random sample of 100 membership member shoppers who recently made a purchase on the web site yielded a mean amount spent of $57 and a standard deviation of ​$ 54 Complete parts​ (a) and​ (b) below. a. Is there evidence that the population mean amount spent per year on the web site by membership member shoppers is...
A marketing researcher wants to estimate the mean amount spent per year​ ($)on a web site...
A marketing researcher wants to estimate the mean amount spent per year​ ($)on a web site by membership member shoppers. Suppose a random sample of 100membership member shoppers who recently made a purchase on the web site yielded a mean amount spent of $56and a standard deviation of$55.Complete parts​(a)and​ (b)below. a. Is there evidence that the population mean amount spent per year on the web site by membership member shoppers is different from $53?(Usea 0.01 level of​significance.) State the null...
It is believed that the average amount of money spent per U.S. household per week on...
It is believed that the average amount of money spent per U.S. household per week on food is about $98, with standard deviation $10. A random sample of 100 households in a certain affluent community yields a mean weekly food budget of $100. We want to test the hypothesis that the mean weekly food budget for all households in this community is higher than the national average. Are the results significant at the 5% level? a) No, we should fail...
The given data set contains the amount of time(in minutes) students in an online course spent...
The given data set contains the amount of time(in minutes) students in an online course spent studying an assignment in a certain semester. According to the historical study, the mean time students would spend on this section nationwide is 95 minutes. While a researcher thinks that this semester student might be using more time. Use ? = 0.05 level of significance. Keep at least three decimal places for numerical answers. (1) State the null hypothesis and alternative hypothesis for this...
The amount of time spent by adults reading the New York Times online can be seen...
The amount of time spent by adults reading the New York Times online can be seen as normally distributed with a mean of 15 minutes and a standard deviation of 10 minutes. 1. The probability of reading for less than 18 minutes is 2. The probability of reading for less than 18 minutes is 3. 15% of readers spend more than how long? 4. What is the probability of spending less than no time reading? Does that make sense? Explain...
4. Below is the amount that a sample of 15 customers spent for lunch ($) at...
4. Below is the amount that a sample of 15 customers spent for lunch ($) at a fast-food restaurant: 7.42 6.29 5.83 6.50 8.34 9.51 7.10 5.90 4.89 6.50 5.52 7.90 8.30 9.60 6.80 Recall the lunch at a fast-food restaurant problem from Assignment 4. Let µ represent the population mean amount spent for lunch ($) at a fast-food restaurant. Previously you calculated the mean and standard deviation of the fifteen sample measurements to be x ̅ = $7.09 and...
The nominal price (per pound) of apples for each year is shown in the timeline below....
The nominal price (per pound) of apples for each year is shown in the timeline below. What is the real price of apples in year 2002 (as seen from year 2001). Calculate your answer to the nearest penny (e.g., 3.81) Year 2001 2002 2003 2004 Nominal Price $2.5 $2.54 $2.7 $2.8 Price Level 151 155 157 158 Price Adjustment Real Price
The nominal price (per pound) of apples for each year is shown in the timeline below....
The nominal price (per pound) of apples for each year is shown in the timeline below. What is the real price of apples in year 2002 (as seen from year 2001). Calculate your answer to the nearest penny (e.g., 3.81) Year 2001 2002 2003 2004 Nominal Price $2.38 $2.51 $2.62 $2.76 Price Level 151 155 157 160 Price Adjustment Real Price
1. A researcher wants to determine whether the time spent online per day is related to...
1. A researcher wants to determine whether the time spent online per day is related to gender. A random sample of 315 adults was selected and the results are shown below. Test the hypothesis that the time spent online per day is related to gender. Use α = 0.05. Identify the null hypothesis, Ho, and the alternative hypothesis, Ha. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Find the critical value(s) and identify the rejection region(s). Find the...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT