ParticipantTheirNumber of cups they drink in1 dayGeneralAverage13 cups1.27221.89351.7442.0021.546.21.89742.2181.769.11.47WHAT IS THE IMPACT OF DRINKING COFFEE FORACADEMIC PERFORMANCES OF THEPARTICIPANTS?State your null and alternative hypothesis.Solve for mean, median, mode, standard deviation,variance, skewness, and central limit theorem.Then, write the conclusions.4.

We assume that H0 : The Impact of drinking coffee for not academic performance of the…

Answered: Participant Number of cups they drink…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Help finding: Lower bound= and Upper Bound = Use this information to interpret the results in terms of the given problem.
Solve last part
Variables Age at which first child was born AGEKDBRN Survey question: How old were you when your first child was born? Respondent’s sex SEX Respondent’s sex (1 = male or 2 = female) Descriptive Statistics: Sex n Mean Std. Dev. Min. Q1 Median Q3 Max. IQR male 679 25.5 5.91 12 21 25 29 51 8 female 987 23.4 5.45 13 19 22 27 45 8 Descriptive Statistics: Group Sample Size Mean Std. Dev. female 987 23.44 5.45 male 679 25.55 5.91 Question: Find the 95% confidence interval for the difference between men and women in the mean age at which their first child was born and report the results below. Find the confidence interval for the difference (mean for men – mean for women). Describe in words what the confidence interval shows about the difference in the mean age at which men and women have their first child.
Week Job Sat Score 1 It is 6% higher It is 12% higher It is 43% higher They are the same 2 3 4 5 6 7 8 3.40 3.60 3.70 3.80 3.90 4.20 4.00 4.10 Absence Rate 0.05 0.04 0.06 0.03 0.04 0.03 0.04 0.05 Quality Score 0.88 0.89 0.90 0.92 0.83 0.91 0.92 0.83 How does the job satisfaction score for weeks 5-8 compare to weeks 1-4? It is 43% lower Output Score 8 10 9 10 8 10 9 Weekly Goals: Job Satisfaction Score ≥ 4.50, Absence Rate ≤ 0.03, Quality Score ≥ 0.95, Output Score ≥ 9 9
34 The number of pounds each member of a weight loss club lost in the first week was 1, 1, 2, 3, 0, 4, 0, 1, and 3. The second week the losses in pounds were 3, 3, 1, 1, 5, 2, 2, 4, and 4. Which is NOT true about the two data sets? * The median of the first data set is equal to the lowest value of the second data set. The two data sets have equal standard deviation. The two data sets have equal range. The two data sets have equal interquartile range.
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Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water of a water source. Location 1 2 3 4 55 6 7 00 8 9 10 Zinc concentration in bottom water in surface water Zinc concentration 430 .266 567 531 .707 .716 .651 .589 .469 .723 415 238 .390 .410 .605 .609 .632 .523 .411 .612 Do the data support that the zinc concentration is less on the surface than the bottom of the water source, at the a = 0.1 level of significance? Note: A normal probability plot of difference in zinc concentration between the bottom and surface of water indicates the population could be normal and a boxplot indicated no outliers. a. Express the null and alternative hypotheses in symbolic form for this claim. Assume Ha 1- μ2, where ₁ is the population mean zinc concentration in the bottom of water and H2 is the mean zinc concentration in the surface of water. Ho: Select an…
Score GPA Hours Absences Gender78 3.15 3.0 4 Female75 2.71 4.0 1 Female79 3.57 3.5 2 Male85 3.26 6.5 0 Female85 3.75 2.0 0 Female84 3.20 4.5 3 Female85 3.16 5.0 3 Male80 3.35 1.5 0 Female74 2.75 3.5 6 Male81 3.04 6.5 1 Male76 2.53 3.0 0 Female85 2.92 6.0 1 Male
how do i find the C in this problem and solve it. I am so confused by the entire problem, but have zero idea how to find C. find p25 and find the percentile for 6 for time spent on a computer for these office workers. 2, 6,3,4,2,2,1,0,1,3,6,3 order the numbers: find c.c=n(percentile)/100=___________=_______________ since c is a whole number, average the numbers in teh 3rd and 4th positions p25=1+2/2= 3/2 =1.5 therefore, 25% fo the values are less than 1.5
1 2 3 5 6 8 5,1 9 6,4 3,6,2 4, 5, 1,0 10 11 12 13 S 7 256M 27 where 712 = 72 students What is the value of the appropriate center? Mean = 95 Mean= 84.74 Median = 84 Median 102.5 N Median = 45.5 Mean = 48

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Participant Number of cups they drink in 1 day Their General Average 1 3 cups 1.27 1.89 1.74 4 4 2.00 2 1.54 1.89 7 2.21 8 1.76 9 1 1.47 WHAT IS THE IMPACT OF DRINKING COFFEE FOR ACADEMIC PERFORMANCES OF THE PARTICIPANTS? 4- CO