4. Testing a population mean - Formulating hypotheses and determining the type of test The term "El Ņiño",refers to the warming of the central, and eastern tropical, Pasifis yaters that Occurs eyery 3 to 7 years strongest ever recorded, affected climatebatferns worcwidgnYAS.ofe increasing trěnd in annualT globar temperatures, madě 1998 the wărmest year in the 20th century. E Nino, the Its effect, combined with an Suppose you are a climatologist, You conduct a hypothesis teşt to dețermine whether, mean, temperature in the curfent thặt the global mean temperature'in 1998 was 14.3 degrees Celsius (the populatign mean), You öbtăin'ă prelimínary sample of temperătures from recording stătions worldwide, which yields'ă global sample mean of x = 15.1 degrees Celsius. Let u denote the global mean temperąture in the current year. Formulate your null and alternative hypőthěses by seřečting the appropriate values in the blùe drópdown menus thät follow. Но: H1:

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4. Testing a population mean - Formulating hypotheses and determining the type of test
The term "EI Niño",refers to the warming of the central and eastern tropical Pacific waters that
štrongest ever recorded, affected climate patterns worldwidě, Its effect,, combined with an
Suppose you are a climatologist, You conduct a hypothesis test to dețermine whether the gļobal
thật the global mean temperature'in 1998 was 14.3 degrees Ce sius (the population mean), You
öbtăin a prelimínary sample of temperatures from řečording stations worldwiđė, which yields'ă
sample mean of x
15.1 degrees Celsius.
%3D
Let H denote the global mean temperature in the current year. Formulate your null and alternative
hypőtheses by seřečting the appropriate valües in the blùe dropdówn menus that foTlow.
HO:
H1:
The test you conduct is
test.
(Note: A gne-tailed test. is, a described.as a a left-tail test if the.null hypothesis is rejected for
values pf the test. statistic in the Teft täil of its distribution,.and it is described as an. right-tail test if
Transcribed Image Text:4. Testing a population mean - Formulating hypotheses and determining the type of test The term "EI Niño",refers to the warming of the central and eastern tropical Pacific waters that štrongest ever recorded, affected climate patterns worldwidě, Its effect,, combined with an Suppose you are a climatologist, You conduct a hypothesis test to dețermine whether the gļobal thật the global mean temperature'in 1998 was 14.3 degrees Ce sius (the population mean), You öbtăin a prelimínary sample of temperatures from řečording stations worldwiđė, which yields'ă sample mean of x 15.1 degrees Celsius. %3D Let H denote the global mean temperature in the current year. Formulate your null and alternative hypőtheses by seřečting the appropriate valües in the blùe dropdówn menus that foTlow. HO: H1: The test you conduct is test. (Note: A gne-tailed test. is, a described.as a a left-tail test if the.null hypothesis is rejected for values pf the test. statistic in the Teft täil of its distribution,.and it is described as an. right-tail test if
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