How did potential energy get stored in the spring/pom pom system?
1 answer:
The elastic potential energy of a spring is the energy stored in the spring due to its elastic nature.
The potential energy stored in a spring is known as elastic potential energy. The elastic potential energy of a spring is the energy stored in the spring due to its elastic nature.
For example, when a spring is compressed it acquires potential energy which will be converted to kinetic energy of the object impacted by the spring.
The elastic potential energy of spring is given as;
where;
- k is the spring constant
- x is the extension of the spring.
Thus, we can conclude that, the elastic potential energy of a spring is the energy stored in the spring due to its elastic nature.
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Answer:
a) Null hypothesis:
Alternative hypothesis :
b)
If we compare the p value and the significance level given we see that
so we can conclude that we have enough evidence to reject the null hypothesis.
c) We can conclude that the mean is significantly less than 16 ounces at 10% of significance. so then the consumer suspect is correct.
Explanation:
Data given and notation
represent the mean for the sample
represent the sample standard deviation
sample size
represent the value that we want to test
represent the significance level for the hypothesis test.
t would represent the statistic (variable of interest)
represent the p value for the test (variable of interest)
State the null and alternative hypotheses.
Is a one tailed left test.
What are H0 and Ha for this study?
Null hypothesis:
Alternative hypothesis :
The degrees of freedom on this case are:
Compute the test statistic
The statistic for this case is given by:
(1)
t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".
Calculate the statistic
We can replace in formula (1) the info given like this:
Give the appropriate conclusion for the test
Since is a one side left tailed test the p value would be:
Conclusion
If we compare the p value and the significance level given we see that
so we can conclude that we have enough evidence to reject the null hypothesis.
We can conclude that the mean is significantly less than 16 ounces at 10% of significance. so then the consumer suspect is correct.