he ALEKS calculator to solve the following problems. a) Consider at distribution with 27 degrees of freedom. Compute P (t2-1.33). Round your answer to at least three decimal places. P(tz-1.33) = ] b) Consider at distribution with 9 degrees of freedom. Find the value of c such that P (-c

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se the ALEKS calculator to solve the following problems.
(a) Consider at distribution with 27 degrees of freedom. Compute P (t -1.33). Round your answer to at least three
decimal places.
P(t2-1.33)= ]
(b) Consider at distribution with 9 degrees of freedom. Find the value of c such that P(-c<t<c)%30.95. Round your
answer to at least three decimal places.
Save F
Continue
O 2021 McGraw-Hill Education. All Rights Reser
Transcribed Image Text:se the ALEKS calculator to solve the following problems. (a) Consider at distribution with 27 degrees of freedom. Compute P (t -1.33). Round your answer to at least three decimal places. P(t2-1.33)= ] (b) Consider at distribution with 9 degrees of freedom. Find the value of c such that P(-c<t<c)%30.95. Round your answer to at least three decimal places. Save F Continue O 2021 McGraw-Hill Education. All Rights Reser
Question 3 of 10 (1 point) Question Attempt: 1 of 1
St.
We want to conduct a hypothesis test of the claim that the population mean score on a nationwide examination in anthropology is different from 505. So, we
choose a random sample of exam scores. The sample has a mean of 492 and a standard deviation of 78.
For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis test on the population mean. Then calculate that statistic.
Round your answers to two decimal places.
(a) The sample has size 10, and it is from a normally distributed population with an unknown standard deviation.
O z =
O It is unclear which test statistic to use.
5 ?
(b) The sample has size 105, and it is from a non-normally distributed population with a known standard deviation of 76.
O z =
Ot=
It is unclear which test statistic to use.
Save For Later
Submit Assigr
Continue
Ac
2021 McGraw-Hill Education. All Rights Reserved. Terms of Use I Privacy
Transcribed Image Text:Question 3 of 10 (1 point) Question Attempt: 1 of 1 St. We want to conduct a hypothesis test of the claim that the population mean score on a nationwide examination in anthropology is different from 505. So, we choose a random sample of exam scores. The sample has a mean of 492 and a standard deviation of 78. For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis test on the population mean. Then calculate that statistic. Round your answers to two decimal places. (a) The sample has size 10, and it is from a normally distributed population with an unknown standard deviation. O z = O It is unclear which test statistic to use. 5 ? (b) The sample has size 105, and it is from a non-normally distributed population with a known standard deviation of 76. O z = Ot= It is unclear which test statistic to use. Save For Later Submit Assigr Continue Ac 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use I Privacy
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