particular plant. A partof he experiment, 5 of the plant are ndemly andomly awig
ID: 3225990 • Letter: P
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particular plant. A partof he experiment, 5 of the plant are ndemly andomly awigned an old formula. determine he heighe should be used of die pilars is higher uing the new fenilert one-ample peopertion A ewer ample proportion test time during deir summer break In the me surwy year, 300 of 610 stadenes stated the same Which type de Percentage of nudents who worked ime is Meher li yor than lae (A) A ranched-pairs one-sample Peoportion D) A wo- ample propomion 00 A chi quared test association 333. The mean weight of 120 male high school seniors is 156 pounds with a rtandard deviation of 23 pounds Aswaming the distribution of weights is type weight of all high achool seniors is more than 150 poundih whether the mean w A marched pain (B) A sample proportion test Arro sample Proportion 154 500 AP Statistics Questions to Know by Test Day particular college had enrolled in an a sample of 800 students this year, 460 freshman had enrolled in an introduceory English course. Which type of should be used determine whether the Peroemtage has increased (B A one-sample proportion (E A two-sample proporion Beest 335. Two years ago, it was determined that the awetage age of viewers ofan television program was 564 years. A study of 50mndomly seloomed should be year found that the age 55.1 years, Which type of test used to whether the average age has (A) A matched pairs test (B A one-sample proportion a test OD A one-ample Mert (E) A two-sample proportion Asample of 50 employees with only high school education had an average yearly salary of S32.000 while a sample of45 employees with a bachelor's degree had an yearly salary of S41.000. Which rype of est should be used to determine whether the average salary higher for is employees with a bachelor's degree than with only a high school education? (A) A manched pain -tost 0E) A two-sample proportion a test 337. In a test of H.:w212.5 versus uExplanation / Answer
Solving only 1 question ( Question no. 331) as per Chegg policy. Please repost rest individually
The correct answer is C. We use a two-sample t-test.
We cannot use a matched pairs test because we cannot make 15 pairs out of both the samples properly.
As per theory of 2 sample t-test, It is applied to compare whether the average difference between two groups is really significant or if it is due instead to random chance. It helps to answer questions like whether the average success rate is higher after implementing a new sales tool than before or whether the test results of patients who received a drug are better than test results of those who received a placebo.
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