Chapter 12: Q. 62 (page 721)
62. If the level of significance is and the -value is , what conclusion can you draw?
Short Answer
The conclusion is that these two variables aren't correlated. Therefore, do not reject the null hypothesis.
Chapter 12: Q. 62 (page 721)
62. If the level of significance is and the -value is , what conclusion can you draw?
The conclusion is that these two variables aren't correlated. Therefore, do not reject the null hypothesis.
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Get started for freeUse the following information to answer the next five exercises. A random sample of ten professional athletes produced the following data where is the number of endorsements the player has and is the amount of money made (in millions of dollars)
x | y | x | y |
0 | 2 | 5 | 12 |
3 | 8 | 4 | 9 |
2 | 7 | 3 | 9 |
1 | 3 | 0 | 3 |
5 | 13 | 4 | 10 |
.When and,are the data significant? Explain
How many hours will it take to mow all of the lawns? (When is ŷ = 0?)
Table contains real data for the first two decades of flu cases reporting
Find the correlation coefficient
For each of the following situations, state the independent variable and the dependent variable.
a. A study is done to determine if elderly drivers are involved in more motor vehicle fatalities than other drivers. The number of fatalities per driver is compared to the age of drivers.
b. A study is done to determine if the weekly grocery bill changes based on the number of family members.
c. Insurance companies base life insurance premiums partially on the age of the applicant.
d. Utility bills vary according to power consumption.
e. A study is done to determine if a higher education reduces the crime rate in a population.
55. The Sum of Squared Errors for a data set of numbers is What is the standard deviation?
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