4. The following are the reaction times (in milliseconds) for randomly selected subjects who tookeither Drug A or Drug BDrug ADrug B1.962.112.242.431.712.072.412.711.622.501.934.842.512.88a) Which drug slows reaction time the most?b) Write a short report of your findings and why you used that particular test statisticc) With reasons, determine whether the data is:i. Continuous/Categoricalii. Qualitative/Quantitativeiii. Measurement scale (Nominal, Ordinal, Ratio, Interval) 3. There is always a claim that after measles immunization, children develop a high temperature.A researcher at IHK was interested in finding out the validity of this claim. On a designatedimmunization day, he randomly selected 5 children (with normal temperature before beingimmunization). He measured their temperature again 6 hours after being immunized againstmeasles. The following were their temperatures in (ºC): 37.7, 36.7, 39.3, 38.2, and 35.9.

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Answered: 4. The following are the reaction times…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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(b) A consumer testing agency is interested in determining whether there is a difference in the mileage for three brands of gasoline. To test this, four different vehicles are driven with each of these gasolines. Results are shown in the table below Gasoline Vehicle A B 19 25 22 II 26 33 39 20 28 25 IV 18 30 Perform a Freidmans test to detemine whether there is a difference between the three gasoline medians at the a = 5%. 21
Complete the following table that lists all possible samples of n = 2 scores from the population. Use the first three rows (Samples a-c) as examples. Sample a b с d e f 9 h i Score 1 Score 2 1 Mean of 1 1 SS n-1 4 4 4 7 7 7 Mean of M column= column= 1 SS Mean of column = n 4 7 1 4 7 1 4 7 M = This EX n 1.00 2.50 This 4.00 2.50 4.00 5.50 4.00 5.50 7.00 This SS 0.00 Calculate the mean for all values in the M column, SS column and in column. Which values match the parameters of the population? Identify those statistics that were biased. Identify those statistics that were unbiased. n-1 4.50 18.00 SS n-1 0.00 4.50 18.00 SS 0.00 2.25 9.00 the mean u of the population. The sample mean is ▼ the variance o² of the population. Sis the variance 02 of the population. SS is n-1 estimate of u. estimate of 02. estimate of g².
this is the data 0.079 0.074 0.058 0.248 0.115 0.189 0.138 0.217 0.302 0.116
7h. A travel association reported the domestic airfare (in dollars) for business travel for the current year and the previous year. Below is a sample of 12 flights with their domestic airfares shown for both years. CurrentYear PreviousYear 345 315 526 451 420 450 216 206 285 263 405 432 635 585 710 650 605 545 517 547 570 496 610 580 Calculate the test statistic. (Use current year airfare − previous year airfare. Round your answer to three decimal places.) Calculate the p-value. (Round your answer to four decimal places.) p-value =
In a study of reaction times of dogs to a specific stimulus, an animal trainer obtained the following data, given in seconds.3.9 8.2 6.38.3 5.2 4.9 7.5 6.9 5.0 7.1 4.6 6.4 6.7 8.5 6.6 7.3 4.3 6.6 6.2 7.9 7.3 3.3 7.2 7.9 5.3 4.1 7.2 8.7 6.6 6.0 3.79.5 2.1 3.1 7.2 8.5 4.5 7 85.2 6.0 2.8 8.0 8.6 6.1 8.7 4.3 4.8 4.4 4.8 4.4 4.8 4.47.0 7.4 5.1 8.5 7.5 7.7 6.3 9.0 8.1 4.97.3 9.45.5 2.5 5.0 7.23.5 7.3(i) Estimate the number of classes and class width using the Surges’ Rule and corrected to one decimal place(ii) Construct a grouped frequency distribution for the given data.(iii) Compute the mean, median, mode and the standard deviation.(iv) Compute the coefficients of variation
Q.Jarjout et al conduct a study in which they measured bronchalveolar lavage (BAL) fluid histamine levels in subjects with elergic rhinitis,subject with asthama and normal volunteers .One of the measurement obtained was the total protein in BAL samples.The following are the results for the 61 samples they analysed. 76.33 57.73 74.78 100.36 73.50 77.63 88.78 77.40 51.16 62.20 149.49 86.24 57.90 72.10 67.20 54.38 54.07 91.47 62.32 44.73 55.47 95.06 71.50 73.53 57.68 51.70 114.79 61.70 47.23 78.15 53.07 106.00 35.90 85.40 72.30 61.10 72.20 41.98 59.36 63.96 66.60 69.91 59.20 54.41 59.76 128.40 67.10 83.82 95.33 88.17 109.30 79.55 58.50 82.60 153.56 84.70 62.80 70.17 44.40 61.90 55.05 Use the data to prepare; 1.A frequency distribution. 2.A relative frequency distribution. 3.A cumultative frequency distribution. 4.A box and Whisker plot.
Can you explain 2.35
Two samples of n = 5 participants each generate the following data. Calculate a t-test score for the difference of these two groups. Group 1 Group 2 2 3 3 3 2 2 2 2 1 2 t(8) = 2.86 t(8) = 2.29 t(8) = 2.5 t(8) = 1.11 Based on the results from the previous question (#7), what is the tcrit and are Group 1 and Group 2 significantly different from each other? Use α = .05, two-tailed test. tcrit = 1.860 Yes, the two groups are significantly different from each other. tcrit = 2.306 Yes, the two groups are significantly different from each other. tcrit = 2.228 Yes, the two groups are significantly different from each other. tcrit = 3.355 No, the two groups are not significantly different from each other.
The following table contains the number of grams of water and the number of grams of carbohydrate for a 100g sample from a random selection of raw foods. Use the data to answer the following questions. Water 83.93 80.76 87.66 85.20 72.85 84.61 83.81Carbs 15.25 16.55 11.10 13.01 24.27 14.13 15.11 a) Use your calculator to find the equation of the regression line in which the x is the number of grams of water, and y is the number of grams of carbohydrates. Use correct notation, and round the slope and y-intercept to three decimal places. b) What is the best-predicted value of the number of grams of carbohydrates in a sample that contains 75g of water? Explain how you predicted the value and why that prediction is the best-predictedvalue. Give your answer in terms of the original problem. What is the best-predicted value of the number of grams of carbohydrates in a sample that contains 50g of water? Explain how you predicted the value and why that prediction is the best-predicted value.…
Two samples of n = 5 participants each generate the following data. Calculate a t-test score for the difference of these two groups. Group 1 Group 2 2 3 3 3 2 2 2 2 1 2 t(8) = 2.86 t(8) = 2.29 t(8) = 2.5 t(8) = 1.11
1.4 The following table shows the results of the tasting panel. 2 = GOOD 1 = AVERAGE 0 = BAD Judge Peanut brittle bar Chocolate marshmallow cookie Caramel/chocolate nut bar 1 2 2 1 2 2 2 1 3 2 1 4 1 2 1 5 2 1 2 Total 1.4 Give the total score of EACH desert and the most popular desert. 1.5 When we do bake, it is important that we are able to convert from big units to smaller units. Do the following measurement conversions. 300 ml to litres 500g to Kilograms 15g to milligrams 1.5.1 1.5.2 1.5.3

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