What is the average increase in stock prices after a positive earnings report? A researcher randomly selected ten stocks that recently reported positive earnings. The before and after prices for each of these stocks are shown below. Stock Prices Before and After a Positive Earnings Report Before 19.92 28.79 26.5 30.39 15.91 40.93 59.63 37.25 25.07 20.82 After 25.87 34.27 25.48 45.36 26.09 46.51 58.46 43.31 36.87 32.03 Assume both follow a Normal distribution. For this study, we should use t-interval for the difference between two dependent population means : Part 2 of 3 Compute the 99% confidence interval for the difference. Round to the nearest minute.

Q: a) How many students are taking Art?

A: the number of students taking Art if given by 6+10=16

Q: 7+3.5-11

A: Let's Solve,

Q: What is the Probability that a student is not taking either class?

A: From the given Venn diagram, it is observed that the number of students who are taking art only is…

Q: 3 3 x-5 1 322

A:

Q: 10 8/10 + 9 7/12=

A:

Q: 10.0

A:

Q: 7,20

A:

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…

Q: Find ay Sin(x+y)=Cos X t cos y

A:

Q: Determine the value of

A: we have to determine the value of z to correspondingprobability value is 0.0400

Q: 5/3 divied 5/2

A:

Q: 4. Fill in the following contingency table with the number of observations that fall into each com-…

A: x1 = number of colored oranges from Skittles brand = 77 x2 = number of colored oranges from M &…

Q: 3. What is the type of the function y-(3x+5)(2x+1)? ODecreasing Static Exponential Logarithmic…

A: The given function is y=3x+52x+1. What is the type of the given function.

Q: 2430.20 2430.20 -

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

Q: thic Sint Costock

A:

Q: Kinda lost

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

Q: Number 6.12

A: From part (6.11), Let x be the random variable denote that the amount of snow fall between 1 inch…

Q: elow is an incomplete probability model showing the likelihood of selecting a marble from a way.…

A: Second option is correct 3/10

Q: 8-8.2+5.0

A:

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.