Null Hypothesis

[Bass Pro Shot]

1. In 2015 a Gallup plan reported that 52% of Americans were satisfied by the quality of the environment. In 2018, a survey of 1024 Americans found that 461 were satisfied by the quality of the environment. Does the survey provide evidence that satisfaction with the quality of the environment among Americans has decreased? Use a 0.05 significance level.
Null hypothesis
Alternate hypothesis
Which test?
p-value
Reject the null hypothesis – yes or no
Conclusion

 

[Bass Pro Shot]

1. In 2015 a Gallup plan reported that 52% of Americans were satisfied by the quality of the environment. In 2018, a survey of 1024 Americans found that 461 were satisfied by the quality of the environment. Does the survey provide evidence that satisfaction with the quality of the environment among Americans has decreased? Use a 0.05 significance level.
Null hypothesis
Alternate hypothesis
Which test?
p-value
Reject the null hypothesis – yes or no
Conclusion

 

[blamocur]

Just figure out the percentage for the 2018 and see if the difference with 2015 is within 5%.

 

[Dr.Peterson]

Just figure out the percentage for the 2018 and see if the difference with 2015 is within 5%.

No, that's not what significance level means.

1. In 2015 a Gallup plan reported that 52% of Americans were satisfied by the quality of the environment. In 2018, a survey of 1024 Americans found that 461 were satisfied by the quality of the environment. Does the survey provide evidence that satisfaction with the quality of the environment among Americans has decreased? Use a 0.05 significance level.
Null hypothesis
Alternate hypothesis
Which test?
p-value
Reject the null hypothesis – yes or no
Conclusion

Please show what you have tried. Presumably if you were assigned this problem, you have been taught what test to use.

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