Mrs. Cunan introduced a Gallery Walk Technique in her Science class. He gave a pretest and posttest to her 20 students and gathered the following data: Student Pretest (x1) Posttest (x2) 1 10 15 2 30 35 3 15 25 4 15 25 5 20 20 6 10 20 7 18 22 8 14 20 9 15 20 10 20 15 11 18 30 12 15 10 13 15 16 14 20 25 15 18 15 16 40 45 17 10 15 18 10 10 19 12 18 20 20 25     At .05 level of significance, is the Gallery Walk Technique effective?    Follow the steps in hypothesis testing.                     Answer the following.     Problem # ________ What is the appropriate statistical test to use? _______________________________________  _____________________________________________________________________________ State Null Hypothesis: _________________________________________________________ _____________________________________________________________________________ State Alternative Hypothesis : __________________________________________________

Q: A psychologist wanted to know if students in her class were more likely to cheat if they were low…

A: Given dataA psychologist wanted to know if students in her class were more likely to cheat if they…

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Q: Find the first quartile for the scores on the Mathematics portion of the SAT.

A: Given that. X~N( μ=528, ?=117) μ=528 , ?=117

Q: third

A: Please refer to the image below

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Q: Construct a 90% confidence interval for the true difference between the mean amounts of time spent…

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Q: A teacher found that the mean number of hours her 12 students spent studying for an AP Statistics…

A: old mean for 12 students = 6.7 sum of 12 students = 6.7*12 = 80.4

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A: Given: The data given is shown below Excellent Good Fair Poor 94 75 70 68 90 68 73 70 85…

Q: What is the best estimate of the mean household income in this county?

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Q: ce interval does not cc lent that the mean am chan the mean amoun

A: Let Population 1 be people who exercise in the morning and Population 2 be people who exercise in…

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A: A descriptive statistic is a summary statistic that quantitatively describes or summarizes features…

Q: Using a significance level of 0.05, the critical value of the appropriate test statistic to conduct…

A: The sample size for first group is 13 and second group is 13.

Q: the household rather than the male in the household. A coupon book was sent at random to either the…

A: Solution: Given information: n= 50 Sample size  xd= 1.5  Diffrence of sample mean sd=4.75 Difference…

Q: Maria owns and manages a small business, selling food via carts to people in the business district…

A: a) F statistic = Between-group variability​(MSB)/Within-group variability(MSW) = 9590.43/2572.67 =…

Q: * Incorrect. (b) Find the mean and standard deviation of the penalty minute values for the original…

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A: a:For the given data, the chi-square test for association is appropriate.Null Hypothesis:H0: The…

Q: 4. Find the first quartile for the following data set:                               4, 8, 14, 5,…

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Q: The following are the distances 9, 12, 16, 19, 19, 20, 27, 27, 28, 30, 32, 35, 35, 36 Notice that…

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Q: You collect data on number of hours spent studying, on average, throughout the Fall 2020 semester…

A: Statement:  The Statistical test  used to compare the students at Stonehill and Holy Cross to look…

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Q: The test scores of 10 randomly selected students are listed below. Find the median. 30 35 43 44 47…

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A: Mean(x)=30.15 standard deviation(s)=12 sample size(n)=58 claim is that the mean price in Providence…

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A: Analysis of Variance is used to test the equality of more than two means.

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A: Formula : Mean = x̄ = Σx/n

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Q: A contributor for the local newspaper is writing an article for the weekly fitness section. To…

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Q: What is the mode for this data set

A: The data that has the highest frequency is called mode. In other words, it is the most frequent…

Q: What statistical test should Charlie use to test his research question?

A:

Q: You may need to use the appropriate appendix table or technology to answer this question. According…

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Q: In a city with three high schools, all the ninth graders took a Standardized Test, with these…

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A: The given hypotheses are as follows: H0: µ = 2,600. Ha: µ ≠ 2,600. The sample size is 50 students,…

Q: what is the second quartile

A: Second Quartile is the median of the data, xm. It is the 50th percentile of the data which is…