Q: The following histogram is a random sample of students who were asked- "How many books did you buy…
A: The histogram is given with bin size 1.
Q: (B) Cadmium oxide and hemoglobin levels An experiment was conducted to assess the effect of…
A:
Q: Tourism is extremely important to the economy of Florida. Hotel occupancy is an often-reported…
A:
Q: c. Give a brief explanation of SD d. Give a brief explanation of IQR
A: It is asked about standard deviation , SD. Explanation : It is the measure of dispersion of the data…
Q: 4. Amedical researcher says that less than 8/% of adults in a certain country think that healthy…
A: Hypothesis testing is a statistical method to test a claim about the population parameter.
Q: LDL - low density lipoprotien - cholesterol is considered the bad cholesterol. A pharmaceutical…
A: The formula to find the confidence interval is given below: x¯±tα2,N-1sn
Q: What is the chi-square critical value (a = 0.05) ?
A: The degrees of freedom for Chi- square test is (a - 1).(b - 1) Where a is number of rows And b is…
Q: time left. 6. [-/3.33 Points] DETAILS LARPCALCLIM4 1.7.014. 2:37:33 Use the graph of f(x) = Vx to…
A:
Q: tudy to determine the effects of washing the oil off within 5 minutes of exposure. A random sample…
A: [NOTE: Since, you have posted a question with multiple subparts, we will solve the first three…
Q: Cardiovascular Disease Suppose the incidence rate of myocardial infarction (MI) was 5 per 1000 among…
A:
Q: In a clay pigeon shooting competition, hunters enter a tournament where they compete with their…
A:
Q: Floor Space (square foot) 5,238 549 4,288 FATHERA 5,588 €99 €679 5,678 €939 5,828 Ma 5,418 4,168…
A: According to given question Floor space is at x-axis Weekly sales is at y axis Now for the given…
Q: According to Mensa's website, "Mensa is an international society whose only qualification for…
A: GivenMean(μ)=100standard deviation(σ)=15
Q: An educator wishes to determine whether there is a difference in the favorite subjects selected by…
A: It is needed to test, whether subject selection is independent of the gender of the individual.
Q: Redo exercises 17 and 18 in section 8.1 of your textbook, about the small animal who lives in an…
A: (1)The one-step transition probability is the probability of transitioning from one step to another…
Q: Semester gpa, adjusting report card grades, finding cumulative gpa a student received the following…
A: Given, a credit point table of a semester.
Q: looking for help with parts a and b, thank you! (if you could show me how or explain how to do this…
A: Formulae for mean & standard deviation of frequency table : Mean : Add up all the numbers,…
Q: (d) P(N and W) | P(M and W)| e) P(N or M). Are the events N = no reaction and M = mild reaction…
A: Solution: Reaction Within 5 minutes After 5 Minutes Row Total None 401 68 469 Mild 59…
Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…
A: Solution
Q: A new electronic component for aircraft is tested to withstand temperatures as low as -50°F. One…
A: Solution
Q: Conser the rbtrix J40 1029008 1 allgeo en 2 eo $29099 allgeo en_ -1 0 O (a) A-1 = 1 %3D 1 O (b) A-1…
A: If a matrix is multiplied by its inverse, then the resultant matrix is an identity matrix.
Q: LDL - low density lipoprotien - cholesterol is considered the bad cholesterol. A pharmaceutical…
A: The 97% confidence interval is = −0.602<μ<−0.246
Q: Allergic reactions to poison ivy can be miserable. Plant oils cause the reaction. Researchers at…
A: W = within 5 minute A = after 5 minute total N =no reaction 391 66 457 M = mild reaction 65…
Q: of 1000 subjects. (Use 3 decimal places.) (a) P(N) P(M) P(S) (b) P(N | W) P(S | W)…
A: Given that W = washing oil off within 5 minutes, A = washing oil off after 5 minutes, N = no…
Q: Allergic reactions to poison ivy can be miserable. Plant oils cause the reaction. Researchers at…
A:
Q: Number Gender Exam 1 Exam 2 Exam 3 Homework Lab Number grade Letter grade Z-score Absolute z-score…
A: As per our guidelines, we are allowed to answer first three sub-parts only. Thanks Given :…
Q: 1. What is the variable of interest in this exercise and what measurement scale was used to obtain…
A: The following R code is given.>subject<- seq(1, 189, 1)> sample(subject, 10)The output is…
Q: Survey: Reaction to Poison Ivy Allergic reactions to poison ivy can be miserable. Plant oils cause…
A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…
Q: Discrete variables produce numerical responses that arise from a measuring process, e.g. finite…
A: A discrete variable is a variable whose value is obtained by counting. Examples of discrete…
Q: Allergic reactions to poison ivy can be miserable. Plant oils cause the reaction. Researchers at…
A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts. In case…
Q: CHI SQUARE TEST IS CALCULATED BY LOOKING AT THE DIFFERENCE BETWEEN THE DATA YOU OBSERVE AND THE DATA…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: The first test a doctor would order to determine whether a person is infected with HIV (the virus…
A: Note: As per our Honor code policy, we are authorized to answer only three sub parts at a time. So,…
Q: Reasons researchers choose Hartleys methods in their research methodology.
A: To determine: Reasons researchers choose Hartleys methods in their research methodology.
Q: Redo exercises 17 and 18 in section 8.1 of your textbook, about the small animal who lives in an…
A: To solve this problem, we'll follow the steps for each part: (1) Finding the transition matrix. (2)…
Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…
A: Given Information: Number of trials n=349 Number of successes (correct) x=161
Q: What do you understand about inductive learning in terms of type of teaching
A: What do you understand about inductive learning in terms of type of teaching
discrete math
Step by step
Solved in 2 steps with 2 images
- Answer these questionNumber Gender Exam 1 Exam 2 Exam 3 Homework Lab Number grade Letter grade Z-score Absolute z-score 1 0 61 94 76 94 87 82.4 B 0.18 0.18 2 0 99 97 90 100 89 95 A 1.38 1.38 3 0 64 76 69 88 87 76.8 C -0.36 0.36 4 0 77 82 86 98 94 87.4 B 0.66 0.66 5 0 70 89 81 93 97 86 B 0.52 0.52 6 0 67 62 65 60 90 68.8 D -1.13 1.13 7 0 87 83 81 85 68 80.8 B 0.02 0.02 8 0 74 88 65 49 90 73.2 C -0.71 0.71 9 0 91 97 87 81 94 90 A 0.90 0.90 10 0 94 87 77 90 67 83 B 0.23 0.23 11 0 47 72 54 59 63 59 F -2.07 2.07 12 0 81 64 78 84 73 76 C -0.44 0.44 13 0 87 90 81 93 80 86.2 B 0.54 0.54 14 0 96 100 84 97 84 92.2 A 1.12 1.12 15 0 80 76 90 85 85 83.2 B 0.25 0.25 16 0 64 51 69 74 78 67.2 D -1.28 1.28 17 0 70 86 84 77 75 78.4 C -0.21 0.21 18 0 80 93 98 95 98 92.8 A 1.17 1.17 19 0 88 83 83 90 84 85.6 B 0.48 0.48 20 0 52 46 62 70 59 57.8 F -2.19 2.19 21 0 97 83 83 85 98 89.2 B 0.83 0.83 22 1 80 74 90 83 65 78.4 C -0.21 0.21 23 1 86 81 72 85 97 84.2 B 0.35 0.35 24 1 88 99…Reading is fundamental to a teenager's ability to perform well in school. Assume a researcher is interested in the ability of the number of books read over the summer to predict ACT Reading scores. Using a random sample of 10 random high school students the researchers recorded the number of books read over the summer and the students' ACT Reading scores. Books Read (X) ACT Score (Y) (X- Xmean) (Y - Ymean) (X-Xmean)(Y-Ymean) (X-Xmean)? (Y - Ymean)? 2 16 -5.4 -14.9 81 29 221 2 19 -5.4 -11.9 64 29 141 3 17 -4.4 -13.9 61 20 192 4 25 -3.4 -5.9 20 12 34 21 -3.4 -9.9 34 12 97 24 -1.4 -6.9 10 2 47 6 21 -1.4 -9.9 14 2 97 8 24 0.6 -6.9 -4 47 7 27 -0.4 -3.9 2 15 10 22 2.6 -8.9 -23 7 78 Total 52 216 259.1 113.3 969.3 МEAN 7.4 30.9 a. Identify the regression line using the number of books read to predict ACT Reading score. Use a = .05 to evaluate the quality of the prediction of the regression line. b. What is the predicted ACT Reading score when 5 books are read?
- 3] Provide an example of a qualitative variable. You may not use an example provided in th notes.Allergic reactions to poison ivy can be miserable. Plant oils cause the reaction. Researchers at Allergy Institute did a study to determine the effects of washing the oil off within 5 minutes of exposure. A random sample of 1000 people with known allergies to poison ivy participated in the study. Oil from the poison ivy plant was rubbed on a patch of skin. For 500 of the subjects, it was washed off within 5 minutes. For the other 500 subjects, the oil was washed off after 5 minutes. The results are summarized in the following table. Reaction Within 5 Minutes After 5 Minutes Row Total NoneMildStrong 4025543 64323113 466378156 Column Total 500 500 1000 Let's use the following notation for the various events: W = washing oil off within 5 minutes, A = washing oil off after 5 minutes, N = no reaction, M = mild reaction, S = strong reaction. Find the following probabilities for a person selected at random from this sample of 1000 subjects. (Use 3 decimal places.) (d) P(N and…ideo Lec e so oxtra Pra Jorkshe ee sc A medical researcher says that less than 72% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 600 Fables (fo adults in that country, 68% think that healthy children should be required to be vaccinated. At a = 0.10, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. e sc Assignme (a) ldentify the claim and state Ho and H. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) Gradeboc e sc Email O A. Less than % of adults in the country think that healthy children should be required to be vaccinated. O B. More than % of adults in the country think that healthy children should be required to be vaccinated. еТеxt OC. % of adults in the country think that healthy children should be required to be vaccinated. Accessibl Resource O…
- LDL - low density lipoprotien - cholesterol is considered the bad cholesterol. A pharmaceutical company conducts a clinical trial on people with high levels of LDL cholesterol. The trial involves a random sample of n = 13 persons who have high levels of LDL. Each person has their LDL level measured prior to the beginning of the drug trial. Each person is then to take a new drug that is believed to lower ones LDL levels. After a period of 4-weeks, the LDL level of each person is measured again. The difference between the initial LDL level and the LDL-level four weeks after taking the drug is then computed. -0.44, -0.63,-0.73, 0.38, -0.21, 0.05, -0.53, -1.02, -0.3, -0.32, -0.06, -0.4, -0.63 Data from the sample, are saved in the Download .csv file. Assuming the difference in the LDL-levels is Normally distributed, find a 94% confidence interval for μ, the mean difference in the LDL-level of a person after taking the drug for four weeks. Use at least four decimals for your lower and upper…Class: Numerical Methods Textbook: Numerical Analysis 10th Ed by Burden and Faires Topic: Round-off Errors and Computer Arithmetic (Sec 1.2) 3) Two calculations for the true values A (ATRUE = 1,100) and B (BTRUE = 1,000,100) yield the approximate values AAPPROX = 1,000 and BAPPROX = 1,000,000. The approximate values are both off by 100, therefore these values are equally accurate. Does this conclusion make sense? Why or why not? 4) For a 4-digit decimal machine numbers (with exponents in the range -6 ≤ n ≤ 6), find Largest possible number = ________________________ Smallest possible positive number = _____________________Clocking the Cheetah. The cheetah (Acinonyx jubatus)isthe fastest land mammal and is highly specialized to run down prey. The cheetah often exceeds speeds of 60 mph and, according to the online document “Cheetah Conservation in Southern Africa” (Trade&Envi-ronment Database (TED) Case Studies, Vol. 8, No. 2) by J. Urbaniak, the cheetah is capable of speeds up to 72 mph. The WeissStats site contains the top speeds, in miles per hour, for a sample of 35 chee-tahs. Use the technology of your choice to do the following tasks. a. Find a 95% confidence interval for the mean top speed, μ,ofall cheetahs. Assume that the population standard deviation of top speeds is 3.2 mph. d. Comment on the advisability of using the z-interval procedure on these data.
- An instructor for a test preparation course claims that the course will improve the test scores of students. The table shows the critical reading scores for 14 students the first two times they took the test. Before taking the test for the second time, the students took the instructor's course to try to improve their critical reading test scores. At a = 0.01, is there enough evidence to support the instructor's claim? Complete parts (a) through (f). Student Score on first test Score on second test 450 698 674 448 489 630 496 543 636 558 643 407 374 493 10 11 12 13 14 D 444 635 616 409 545 605 516 395 561 471 632 387 337 461 1 2 3 4 7 8 9. (b) Find the critical value(s) and identify the rejection region(s). (Use a comma to separate answers as needed. Type an integer or a decimal, Round to three decimal places as needed.) Identify the rejection region(s). Choose the correct answer below. O A. t>3.012 O B. t 2.650 O C. t 3.012 Click to select your answer(s). 225 PM 12/17/2020statistical
