67×0.3= 20.1 first multiply 7×3 then 6×3...then you mutiply 0×7 and then 0×6
Volume = 1/3×π×182×6 = <span>2035.7520395262 millimeters<span>3</span></span>
If earning more money from a college degree occurs, a researcher is interested in finding out. She is aware that the average annual household income in thousands is μ<=80.
The null hypothesis is a claim made about the population parameter in relation to the test's goal and in opposition to the alternative hypothesis.
- The term "null hypothesis" refers to a researcher's attempt to reject or "nullify" a commonly held assumption (such as that the sky is blue). A null hypothesis is "a statistical theory suggesting that no statistical relationship exists between given observed variables," according to a more formal definition.
- It always contains = , ≤ , ≥ signs.
- The results will be examined using a one-tailed hypothesis test.
Hence, μ<=80
To learn more null hypothesis visit : brainly.com/question/19263925
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