The results of a study of 268 students who paid a private tutor to help them improve their scores on a standardized test are shown below. The changes in both the 7 Mathematics and Verbal scores for these students are reproduced in the table. Complete parts a through c below Test score improvements Mean change in score Standard deviation of score changes Math Verbal 17 67 49 ts ho po mor we above nerval brary b. Construct and interpret a 95% confidence interval for the population mean change in the Verbal score for students who pay a private tutor frect: 0 ions (Round to three decimal places as needed.) Enter your answer in the edit fields and then click Check Answer > Check Answer Clear All parts remaining 1256 AM 10/30/2019 a ype here to search

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A: Step 1:given 4.7i+6.13i+5.6 Step 2: Add 4.7i+6.13i You get 4.7i+6.13i=10.83i   Step 3:Now 10.83i +…

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A: Now, we adding the additive inverse of 43. So,                 -31x+43-43=0-43⇒-31x=-43⇒x=4331

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A: Find  m∠WXU

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A: To write the expression below in the form a+bn.1296x12-4320x9y2+5400x6y4-3000x3y6+625y8

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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.