A company claims that the course it offers significantly increases the writing speed of secretaries. The following table gives the scores of 8 secretaries before and after they attended this course 2.3 | 2.8 | 3.1 | 2.7 | 3.4 | 2.6 | 2.8 | 2.5 Before x, After y, | 3.2 3.0 3.5 3.7 2.4 2.9 | 2.9 2.6 Test at the 5% significance level if there is an improvement in the job performances of employees due to hypnosis. Assume that the population of paired differences is (approximately) normally distributed.

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A: please stop  posting these king of questions and misleading others Explanation:Step 1:post your…

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Q: Can you repost the solution as an image or fix the format because its unreadable like this.

A: Given: A=30-1211, B=4-102, C=142315, D=152-101324, E=613-112413To determine: d BT+5CTe 12CT-14Af…

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A: Area of rectangle = length × width Since , the area of rectangle and width of rectangle is given, so…

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A: Here the question is to find the value of x satisfying the given relation. The given relation is ,…

Q: 了告 da 33

A: see the image attached below

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A: Given:      ∫1+x33x-2dx      =∫x2 x3+13dx substitute u=x3+1                 dudx=3x2→dx=13x2du

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A: Solution is given below:

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A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

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A: Solve the equation 1/8x = –10 for x.

Q: please explain in clear format

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A: Solve by using limit

Q: eNgBfF3yqfd3s10aYUms/edit#slide=id.p4 Last edit was 5 minutes ago out Theme Transition

A: In this question we will use basic of coordinate geometry i.e equation of line, slope of line,…

Q: Define interset.

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.