How effective is the flu shot? In a control study, 82 of the 758 participants who received the placebo shot got the flu that season and 61 of the 990 participants who received the true flu shot got the flu that season. For this study, we should use t-interval for a population mean z-interval for a population proportion t-interval for the difference between two independent population means z-interval for the difference between two population proportions t-interval for the difference between two dependent population means Part 2 of 3 Come up with the 90% confidence interval for the difference. Round your answers to four decimal places and present your answers as proportions rather than percents.

Q: a. Which of the error bars indicates the standard deviation? b. Which error bar indicates the…

A: Disclaimer: As the question has multiple parts, only first three will be answered.   The easiest and…

Q: Evaluate Vi

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A: Solve by squarring both side

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Q: sing the geometry of the graph ,evalvate the definite integrals.

A: As this is a multiple subpart question according to the Bartleby Answering rule, only first three…

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A: Let's find.

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A: Topic = Algebra

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Q: e8 So us 48

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Q: 3. Identify all the cycles at each node of the directed graph above.

A: Cycle is defined as a path that start and end at the same vertex.

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A: The given number 243 can be written as 35 and the number 0.20 can be written as 1/5:

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A: here the graph passes two times  through the x -axis  so there will be two roots

Q: 6. Using the data from the contingency table, obtain the value of the test statistic of our test. 7.…

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Q: y= Sn (tan (8x) ニ

A: A detailed solution is given below

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.