The image presents a problem related to statistical analysis, specifically about the age in weeks when babies first crawl, based on a survey of 12 mothers. The table on the right lists the ages: 52, 33, 44, 35, 32, 39, 47, 37, 26, 26, 28, 26.### Problem:#### (a) Draw a boxplot to check for outliers. Choose the correct answer below:The image provides four boxplot options labeled A, B, C, and D, displaying the distribution of crawler age data. The boxplots differ in the depiction of the data range, positions of the quartiles, and presence of outliers:- **Option A** shows a boxplot extending from 20 to 60 weeks with a longer whisker on the right.- **Option B** presents a symmetrical boxplot with no apparent outliers.- **Option C** illustrates a boxplot with some outliers, indicated by dots beyond the whiskers.- **Option D** is skewed with outliers on the left side.#### (b) Construct and interpret a 95% confidence interval for the mean age at which a baby first crawls. *Question*: Does the boxplot suggest that it is reasonable to construct a confidence interval for the population mean?- **A**: Yes, because the distribution is roughly symmetric with no outliers.- **B**: No, because the distribution is symmetric with no outliers.- **C**: No, because the boxplot shows there are outliers.- **D**: Yes, because the distribution is highly skewed with outliers.Each choice explains the validity of constructing a confidence interval based on the distribution's characteristics as shown in the boxplot.In summary, the image explores how to visually detect outliers and determine the feasibility of statistical inference through boxplots. **Multiple Choice Question: Understanding Confidence Intervals**Select the correct choice below and fill in the answer boxes to complete your choice. (Round to one decimal place as needed. Use ascending order.)- **A.** There is a 95% probability that the mean age at which a baby first crawls is between [ ] weeks and [ ] weeks.- **B.** We are 95% confident that the mean age at which a baby first crawls is between [ ] weeks and [ ] weeks.- **C.** The confidence interval should not be constructed.**Explanation:**- **Options A and B** assess your understanding of statistical confidence intervals related to the mean age of crawling in babies. - **Option C** questions the appropriateness of constructing a confidence interval.**Note:** Remember to round your answers to one decimal place and ensure the numbers are in ascending order.

Answered: The data shown represent the age (in…

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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Can someone please help? Thank you.
2. This is a sample of 10 random seasons in the National Hockey League, Wayne Gretzky scored50% more points than anyone who ever played professional hockey. He accomplished this amazingfeat while playing in 280 fewer games than Gordie Howe, the previous record holder. Here are thenumber of games Gretzky played during each season.45 70 73 73 74 78 79 80 80 82 c.Are there any outliers in the data? Show work and identify which value(s) if any are outliers. d.Construct a boxplot for the data
Here are histograms of the values taken by three sample statistics in several hundred samples from the same population. The true value of the population parameter is marked on each histogram with an arrow. A В Which statistic has the largest bias among these three? O Graph B because the spread of the sampling distribution is large. O Graph C because the center of the sampling distribution does not equal the parameter. Graph A because the graph of the sampling distribution shows both high and low outliers.
(a) Identify the shape of the distribution, and (b) determine the five-number summary. Assume that each number in the five-number summary is an integer. 0 10 20 a. Choose the correct answer below for the shape of the distribution. A. The distribution is roughly symmetric. B. The distribution is skewed left. C. The distribution is skewed right. D. The shape of the distribution cannot be determined from the boxplot. b. The five-number summary is \,\, \0
NEED HELP WITH: E, F, G
c. Age of first heart attack - The horizontal axis is age. The vertical axis is frequency (number of people who had their first heart attack at that age). The population is people in the US who have had at least one heart attack. Shape of distribution: uniform skewed left skewed right symmetric Justification:
The average final exam score for the statistics course is 79%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is lower. The final exam scores for the 13 randomly selected students who were glven the colored pens are shown below. Assume that the distribution of the population is normal. 87, 58, 66, 70, 71, 72, 90, 83, 60, 63, 70, 89, 60 What can be concluded at the the a = 0.05 level of significance level of significance? a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Hạ: [pv|V| = H: [uvv # C. The test statistic t v (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is
Jear 14. Each year the college gives away T-shirts to new students during freshman orientation. The students are allowed to pick the shirt sizes that they want. To determine how many of each size shirt they should order, college officials look at the distribution from last year. The following table shows the distribution of shirt sizes selected last year. Size f 27 48 136 XL 120 XXL 39 a. What kind of graph would be appropriate for showing this distribution? b. Sketch the frequency distribution graph.
fill in blank, there are only 3 options, decreases, increases or remain the same.
(Extra credit) 14. Let X denote the number of times a control machine malfunctions: 1, 2, 3 on any given day. Let Y denote the number of times a technician is called on an emergency call. The joint distribution of X and Y are:
The data represent the age of world leaders on their day of inauguration. Find the five-number summary, and construct a boxplot for the data. Comment on the shape 48 of the distribution. Question Help v ¢ 57 43 49 56 68 55 64 48 The five-number summary is. (Use ascending order.) 43 50 65 57 58 62 Choose the correct boxplot of the data below. OA. OB. OC. 30 40 50 60 70 80 30 40 50 6o 70 80 30 40 50 60 70 80 Choose the correct description of the shape of the distribution. O A. The distribution is skewed to the right. Click to select your answer(s) O Type here to search 耳中 728 PM 3/12/2021 TOUGHBOOK Panasonic CF-54 OFF NO CDSS-4852 TESMO TOOA Pause Scroll Lock F12 PrtSc Num Lock F7 F8 F9 F10 F11 Break F3 F4 F5 F6 SysRq F1 F2 Esc Back 1space Home * 8 8 #3 99 ! 1 A1 @ 2 A2 6 7 0 Page Up T E 5 Tab Enter K 2 H 3 A Cans Lock Shi M --- 2回の 287 24
Find the margin of error for the given values of c, s, and n. cequals=0.99 sequals=3.9 nequals=15 view the t-distribution table. The margin of error is(Round to one decimal place as needed.)

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