Hi! I need questions 19.16, 17, 25, 26, 32, 33, and 20.15, 16, 32, 38 Hi! I need

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Hi! I need questions 19.16, 17, 25, 26, 32, 33, and 20.15, 16, 32, 38

Hi! I need questions 19.16, 17, 25, 26, 32, 33, and 20.15, 16, 32, 38

In the next two chapters we ext that occur frequently in practice- And we will see that the basic ide that we leamed in Chapters 14 to l CHECK YOUR SKILLS 19.16 The 2009 National Assessment of Educational Prog- dures wi ress (NAEP) gave a mathematics test to a random sample of of freedo eighth-graders in Texas. The mean score was 287 out of 500. (a) 41. To give a confidence interval for the mean score ofall Texas eighth-graders, you would use a meant standard environm deviation (a) the two-sample t interval. (b) the matched pairs t interval. (c) the one-sample t interval. 19.17 In the 2009 NAEP sample of Texas eighth-grad the mean mathematics scores were 286 for fernale students and 287 for male students. To see if this difference is statisti- cally significant, you would use (a) the two-sample t test. (b) the matched pairs t test (c) the one-sample t test. 19.18 A new method for measuring blood pressure in labo- ratory mice using radiotelemetry has been proposed. How does chis compare with the exist ing method? You apply both two-sample methods to a sample of 16 mice and use ers, population 19.22 A s 488 Ameri 421 Amerie media. Bas social medi labo- indicate gre

Explanation / Answer

19.16)

The given sample mean is: 287 out of 500.

It is a random sample data set from a population.

Using the same data we can claculate for One proportion test.

Answer: One sample t-test

For two sample t-test data should be independent and should have two samples.

Foe paired t test, with the same data to be tested twice means pre and post test examples.

19.17)

Given sample data of Male and Female students:

So, both data sets are independent to each other.

Two sample t-test.

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