9. The maximum acceptable level of a certain toxic chemical in vegetables has been set at 0.4 parts per million (ppm). A consumer health group measured the level of the chemical in a random sample of tomatoes obtained from one producer. The levels, in ppm, are shown below. 0.31 0.47 0.19 0.72 0.56 0.91 0.29 0.83 0.49 0.28 0.31 0.46 0.25 0.26 0.47 0.81 0.34 0.17 0.58 0.19 At the 5% significance level, do the data provide sufficient evidence to conclude that the mean level of the chemical in tomatoes from this producer is greater than the recommended level of 0.4 ppm? Assume that the population standard deviation of levels of the chemical in these tomatoes is 0.21 ppm. Performing the hypothesis test at 5% significance (a = 0.05) yielded a p-value of 0.1716.

9. The maximum acceptable level of a certain toxic chemical in vegetables has been set at 0.4 parts per million (ppm). A consumer health group measured the level of the chemical in a random sample of tomatoes obtained from one producer. The levels, in ppm, are shown below. 0.31 0.47 0.19 0.72 0.56 0.91 0.29 0.83 0.49 0.28 0.31 0.46 0.25 0.26 0.47 0.81 0.34 0.17 0.58 0.19 At the 5% significance level, do the data provide sufficient evidence to conclude that the mean level of the chemical in tomatoes from this producer is greater than the recommended level of 0.4 ppm? Assume that the population standard deviation of levels of the chemical in these tomatoes is 0.21 ppm. Performing the hypothesis test at 5% significance (a = 0.05) yielded a p-value of 0.1716.

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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9. See photo
2.3.1 Which is the highest level of measurement possible for each of the following variables? a. Daily high temperature for a given year in Chicago b. Marital status of the applicants for a particular job c. Class standings at a university (freshman, sophomore, etc.) d. Colors of roses e. Weights of all American-made cars f. Number in attendance per day at a particular high school g. Birthdays of people in a certain group
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Listed below are body temperatures from five different subjects measured at 8 AM and again at 12 AM. Find the values of d and sg. In general, what does, represent? Temperature (F) at 8AM 98.1 99.2 97.3 97.9 97.5 Temperature ("F) at 12 AM 98.5 99.6 97.4 97.6 97.8 Let the temperature at 8 AM be the first sample, and the temperature at 12 AM be the second sample. Find the values of d and s à-0.20 (Type an integer or a decimal. Do n decimal. Do not round.)
Listed below are body temperatures from five different subjects measured at 8 AM and again at 12 AM. Find the values of d and In general, what does ·Ps Hd represent? Temperature (°F) at 8 AM Temperature (°F) at 12 AM 98.9 98.4 99.4 97.7 97.8 97.7 100.2 98.1 97.6 98.0 Let the temperature at 8 AM be the first sample, and the temperature at 12 AM be the second sample. Find the values of d and s. d =D %3D (Type an integer or a decimal. Do not round.) Sa = (Round to two decimal places as needed.) In general, what does µg represent? O A. The mean of the means of each matched pair from the population of matched data B. The mean value of the differences for the paired sample data O C. The difference of the population means of the two populations O D. The mean of the differences from the population of matched data
10. The following data was collected from 1 bag of Hershey Kisses®. Each Kiss® was weighed in grams with the wrapper and recorded in the table below. Hershey cims that there are 368 grams of chocolate in one bag. Hershey Kiss Weights in Grams 4.76 4.72 4.74 4.55 4.91 4.74 4.78 4.71 4.80 4.78 4.78 4.75 4.79 4.82 4.91 4.83 4.68 4.74 4.70 4.80 4.70 4.76 4.70 4.83 4.93 4.74 4.84 4.82 4.76 4.77 4.72 4.78 4.83 4.75 4.74 4.68 4.84 4.71 4.71 4.76 4.66 4.78 4.73 4.74 4.92 4.77 4.80 4.79 4.86 4.64 4.78 4.70 4.75 4.78 4.76 4.83 4.66 4.77 4.83 4.78 4.69 4.81 4.68 4.78 4.88 4.72 4.85 4.85 4.81 4.74 4.80 4.82 4.84 4.70 4.85 4.70 4.81 4.72 4.79 4.73 4.61 How might standard deviation and the shape of the distribution indicate how consistent Hershey® is in the manufacturing of their Kisses®?
Please show detailed calculations and work. Find the critical values (“z”, "? ? "?? “t” scores) for the following. a. C.L. = 98%, n is 25 and σ is unknown. b. Alpha is 3%, the sample size is 45 and sigma is known. d. α is .5%, n=15;sigma is known for the left tail (not “z”) e. 90%, chi-square right, when the sample size is 22.( ? ? ?)
Calculate sd
4.Calculation (1020'=20') Study the relationship between monthly household consumption expenditure y and monthly household disposable X in the community. Set the measurement model as: Y=B1+B₂X+μ Sample data Xi, Yi, Xiyi Xiyi, xi², and sample mean value are shown in the following table. 2 Xi Yi Xi Yi Xiyi Xi 1 800 638 -1350 -945 1275750 1822500 2 1100 935 -1050 -648 680400 1102500 3 1400 1155 -750 -428 321000 562500 4 1700 1254 -450 -329 148050 202500 5 2000 1408 -150 -175 26250 22500 6 2300 1650 150 67 10050 22500 7 2600 1925 450 342 153900 202500 8 2900 2068 750 485 363750 562500 9 3200 2267 1050 684 718200 1102500 10 3500 2530 1350 947 1278450 1822500 Sum 21500 15830 1 49758000 74250000 Mean 2150 1583 1 1 1 1
1. SUGAR Listed below are measured weights (mg) of sugar in Domino packets labelled as containing 3500 mg (or 3.5 g). Are the data qualitative or quantitative? What is the level of measurement of the data (nominal, ordinal, interval, or ratio)? Before any rounding, are the weights discrete or continuous? Given that the weights are from Domino sugar packets selected from a much larger population, are the weights a sample or a population? If we calculate the mean of the listed values, is the result a statistic or a parameter? 3511 3516 3521 3531 3532 3545 3583 3588 3590 3617 3621 3635 3638 3643 3645 3647 3666 3673 3678 3723 2. FREQUENCY DISTRIBUTION Using the data from Exercise 1, construct a frequency distribution using a class width of 50 mg and a first class with a lower class limit of 3500 mg. 3. HISTOGRAM Use the frequency distribution from Exercise 2 to construct a histogram. Use class midpoint values for the horizontal scale.
Do not give handwriting solution.