Suppose you want to determine if a text-anxiety workshop has an effect on exam performance. Students were given a test before taking the workshop then another test after the workshop was completed. Use the dependent matched pair results to test the claim there is a difference in exam scores after completing the workshop at the 0.10 significance level. Assume the population of difference scores is normally distributed. Before 82 68 65 78 87 74 63 76 73 60 70 78 73 After 84 72 65 77 91 75 67 78 78 63 70 78 78

Q: One day, as I was out for a drive, I passed through a 1 mile long, straight tunnel. Although I was…

A: Given data: The speed limit is 60 miles per hour=1 mile per minute. The length of the tunnel=1 mile…

Q: how would you go about simplifying the problem in part c

A: (-a340+75)2=602-a We will calculate value of a.

Q: A firm has redesigned its production process so that it now takes 10 hours for a unit to be made.…

A: Given, that the old process takes  hours to make a unit.The new process takes  hours to make a…

Q: Needing help with problems 1a & 1b only

A:

Q: is there a faster way to do it on a ti-84calculator?

A: The number of data values is 13.

Q: It has been estimated that there are 107 billion pieces of mail per year. If the postage rates are…

A:

Q: how to calculate the following problem  5(-7) – 2 (-4) + 6(-3)

A: Please see the attached image for the solution.In adding numbers of the same sign, just add the…

Q: It seems maybe theres a missing step, I am still confused. Should I do some algebra and simplify it?

A:

Q: Many have cited fear of allergic reaction as a rational for not obtaining the COVID-19 vaccination.…

A:

Q: How to solve problems 13-16 ?

A: 13. (a) 0.4=1.96 (3)n→n=5.790.4→n=14.475→n=209.5256≅210 Thus, a minimum sample of 210 sizes is…

Q: 390 • 381 142 (Round to three decimal places as needed.)

A: Using the operation in order addition , subtraction , multiplication and division .

Q: Evaluate each of the following expressions. Your answer may be "undefined. (Do not use your…

A:

Q: On letter B, how did you get 0.2931? I tried a couple of different things on the calculator but I…

A: Mean(µ) = 2847Standard deviations (σ) = 621X ~ N (µ, σ )= N(2847,621) Note: in this problem round…

Q: This question is designed to be answered without a calculator. (10¹ x) = (In x)10¹n x-1 O (In…

A:

Q: How do you solve this problem using a TI-84 Plus calculator?

A: It is given that the hypothesized population proportion (p) is 1/2 =0.50.

Q: Hello, Can you help me solve this on a ti 84 calculator? Thank you

A: • For sample 1, we know that the sample proportion is p^1=0.523\hat p_1 = 0.523 and the sample size…

Q: Given A = = -4A = -1 1 [4] compute -4A.

A:

Q: How do I put step 2 in my calculator?

A: For step 2 the probability is calculated as 14.92%.Note that in step 2 we want the probability of…

Q: While working on the multiplication problem 38 x 25, Maria says this:              “Four times 25…

A: The objective of the question is to evaluate Maria's method of solving the multiplication problem 38…

Q: Could you explain how to go about #3 with a calculator?

A: Given: n = 6 d¯=-1sd=2.19Confidence level = 0.99

Q: could whomever is helping me with this problem write a little bit more neatly?

A:

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.