stion 7 of 17<>Suppose a biologist collected data on the weight of50 lab rats that were 3 weeks old. The boxplot to theright shows the weight distribution in grams.3545Weight ()The boxplot indicates that the weight distribution of the rats isO left (negatively) skewed.O normal.O right (positively) skewed.O symmetrical.8.

We want to tell a skewness from box plot in given question

Answered: Suppose a biologist collected data on…

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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The accompanying data table contains the prices and weights of the diamonds in 10 rings offered for sale. The prices are 4 carats an Xough d belo Data (Daund both The weight in carats and price in dollars for 10 diamond rings Weight 0.29 0.32 0.34 0.17 0.36 0.36 0.12 0.14 0.23 0.26 Price 924 881 1,039 445 1,073 1,034 120 320 665 733 Print Done - rings. ble.
Following are the GPA's of the 30 students from a certain university who participated in a track meet. Draw a dot plot to better display the data. 3.2, 2.8, 2.0, 1.9, 3.0, 3.2, 2.9, 2.2, 2.1, 4.0, 3.5, 3.0, 3.1, 2.1, 3.5 O 4.0, 3.1, 3.3, 2.8, 3.9, 3.9, 3.7, 2.4, 2.9, 3.7, 2.7, 3.0, 2.7, 2.9, 3.9 Select the correct graph below. O A. OB. XX XX XXXXX X X XX x x XX XXXXXXX x x Xx XXXXXX XXX XXXXXX x x Xx XXXX X 15 25 35 1.5 25 35 OC. OD. XX XXX XXXXXXX x x XX XX XX X X X X Xx x x XXX X 15 25 3.5 1.5 25 3.5 Click to select your answer. Prt Scn, Home End DII F3 F5 * F2 F4 F1 & #3 %24
The data show the number of vacation days used by a sample of 20 employees in a recent year. Use technology to answer parts (a) and (b). a. Find the data set's first, second, and third quartiles. b. Draw a box-and-whisker plot that represents the data set. 1 5 4 3 6 0 5 3 4 5 3 1 10 7 8 6 1 2 89 a. Find the three quartiles. Q₁ = Q₂ = Q3 = (Type integers or decimals. Do not round.) b. Choose the correct answer plot below. Note that different technologies will produce slightly different results. O A. OB. Q Q C O C. Q
Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. Females Males MRI IQ MRI IG The data is reported to the right. Complete parts (a) through (d) below 139 858,472 140 955,003 935,494 924,059 1.079.550 1,001.121 Click the icon to view the critical values table. 991,305 138 141 857,782 833,868 790,619 133 135 132 141 135 140 AMRI 1,080,000- AIO 145 AIO 145- AMRI 1,080,000 780,000 130 130 780,000 130 780,000 780,000 130 1,080,000 145 1,080,000 MRI 145 MRI (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is O B. No. MRI count and IQ are not…
Describe the shape of the data presented: 40.0% 35.0% 30.0% 25.0% 20.0% 15.0% 10.0% 5.0% 0.0% 36.1% 24.5% Ethnicity of Students Skewed to the right Skewed to the left Symmetric None of the above 17.1% 9.6% Asian White Hispanic Other/ Unknown 5.8% 5.3% Black Filipino 1.0% 0.6% Pacific Native Islander American
Explain MEAN SQUARES (M S) AND F RATIOS.
Please answer all subparts.if you unable to solve then please solve b, c and d i will really upvote. Thanks
The data represents the heights of eruptions by a geyser. Use the heights to construct a stemplot. Identify the two values that are closest to the middle when the data are sorted in order from lowest to highest. Height of eruption (in.) 65 31 50 90 80 50 40 70 67 73 52 50 54 68 63 60 Which plot represents a stemplot of the data? OA. 3 4023578 50037 6008 70034 80 90 B. 31 4 03 5 00024 603578 70037 808 90 Identify the two values that are closest to the middle when the data are sorted in order from lowest to highest. The values closest to the middle are ☐ inches and ☐ inches. (Type whole numbers. Use ascending order.) C. 3 034 4 025 5 007 6003 7 008 8 037 9 08 77 70 43 88
Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna). (Reference: Hummingbirds, K. Long, W. Alther.) Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and ? = 0.64 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is ? = 4.30 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.30 grams? Use ? = 0.10. Level of significance = .10 Null and alternate hypotheses. - H0: ? = 4.3 g; H1: ? < 4.3 g; left-tailed Sampling Distribution - The standard normal, since we assume that x has a normal distribution with known ? Compute the z value of the sample test…
Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna). (Reference: Hummingbirds, K. Long, W. Alther.) Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and σ = 0.64 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is μ = 4.30 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.30 grams? Use ? = 0.10. (a) What is the level of significance? (Enter a number.) State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? H0: μ = 4.3 g; H1: μ > 4.3 g; right-tailed H0: μ < 4.3 g; H1: μ = 4.3 g; left-tailed…
What is the best description of the shape of the data below? Bell-shaped Skewed right Skewed left
The total cost for a production process is $600 minus two times the number of units produced. The mean and variance of the number of produced are 200 and 20, respectively. So, the mean and variance of the total cost are a. 400, 180 O b. 600, 200 O c. 200, 80 O d. 1000, 560

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