1. An experiment was conducted to determine the effect of four different types oftips in a hardness tester on the observed hardness of a metal alloy. Fourspecimens of the alloy were obtained, and each tip was tested once on eachspecimen, producing the following data:SpecimenТуре ofTip123419.39.49.610.029.49.39.89.939.29.49.59.749.79.610.010.2Is there any difference in hardness measurements between the tips?b. b. Use Fisher’s LSD method to investigate specific differences between thetips.c. Analyze the residuals from this experiment.a.

Answered: Image /qna-images/answer/d8a71080-ed56-4e93-b8ed-28acdfd70ccf.jpg

Answered: 1. An experiment was conducted to…

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 following data was reported on total Fe for four types of iron formation (1 carbonate, 2 silicate, 3 magnetite, 4 hematite). 1: 21.0 28.1 27.8 27.0 27,8 25.2 25.3 27.1 20.5 31.5 2: 26.2 24.0 26.2 20.2 23.6 34.0 17.1 26.8 23.7 25.0 3: 29.6 34.0 27.5 29.4 26.4 26.2 29.9 29.5 30.0 35.5 4: 37.1 44,2 34.1 30.3 31.8 33.134.1 32.9 36,3 25.3 A USE SALT Carry out an analysis of variance F test at significance level 0.01. State the appropriate hypotheses. H at least two 's are equal Ho Hi= Ha = H4 H at least two 's are unequal O Ho = = 4 H al four s are unequal H all four 's are equal
Fill the chi square for Cross 1 and Cross 2 from the following data in the attached image: Cross 1: Phenotypes Ratio Observed Expected (O-E)2/E Totals X2 = Cross 2: Phenotypes Ratio Observed Expected (O-E)2/E Totals X2 =
ANSWER C AND D ONLY
b?
A?
23453 An experiment is designed to determine the effect of four different types of tips in a hardness tester on the observed hardness of a metal alloy. Four specimens of the alloy were obtained, and each tip was tested once on each specimen, producing the following data: Specimen Туре of Tip 1 3 1 9,3 9,4 9,6 10 9,4 9,3 9,8 9,9 3 9,2 9,7 9,4 9,6 9,5 9,7 10,2 4 10 What is the appropriate null and alternative hypotheses? O a. Ho: H1 = H2 = H3 = H4 H: At least one u; is different O b. Ho: H1 = H2 = H3 = H4 = 0 H: At least ome u; + 0 O c. Ho: T1 = T2 = T3 = T4 H: At least one t, is different O d. Ho: H1 = 42 = H3 H: At least one u, = 0
4. During a given exercise in class data on the heights of fathers (X) and of sons (Y) was collected. The following results were then obtained: Σχ= 71, ΣΥ = 70, Σ χ2555, Σγ?526 and ΣΧΥ-527 %3D Check for the level of association between the heights of fathers 10 and of 10 sons
Given the following figures 5,12,6,3,8,11,15,9,12,15 calculate a measure of relative Kurtosis round to 2 decimals I
4. From a data ,the following measures are obtained = 363 and SSyy = 643. SSyy = 345, SSx The coefficient of determination is....
For numbers 18 to 21: A study was conducted using 50 undergraduates at a large private university who volunteered to participate in the research as partial fulfillment of a Course requirement. One of the items studied was the mavimum daily amount of alcohol consumed in the last month. Base on the data in the following table are there differences between males and females in the maximum amount of alcohol consumed in any one day in the past month? Use 5 70 lev significance. Assume equal variances. Alcohol consumed Male female Mean 8.2 5.6 Standard deviation 5.9 5.7 Number of students 20 30 18. Which of the following is the appropriate alternative hypothesis? A. There are more female participants than males B. The amount of alcohol consumed by males is higher than the amount consumed by the females. C. The amount of alcohol consumed by males and females in the past month is not the same. D. The amount of alcohol consumed by males and females in the past month is the same. 19. The pooled…
9:59 AA www-awn.aleks.com Week 10 - ALEKS Quiz 5 Time Remaining: 1:39:24 A study conducted by the research department of a pharmaceutical company claims that the annual spending (per person) for prescription drugs for allergy relief, u, is greater than or equal to the annual spending (per person) for non-prescription allergy relief medicine, p,. A health insurance company conducted an independent study and collected data from a random sample of 265 individuals for prescription allergy relief medicine. The sample mean is found to be 17.5 dollars/year, with a sample standard deviation of 5.6 dollars/year. They have also collected data for non-prescription allergy relief medicine. An independent random sample of 220 individuals yielded a sample mean of 18.5 dollars/year, and a sample standard deviation of 4.5 dollars/year. Since the sample size is quite large, it is assumed that the population standard deviation of the sales (per person) for prescription and non- prescription allergy…
2. The following passage is from a paper. Also significant was the proportion of males and their water consumption (8 oz. servings) compared to females (X2 = 8.136, P-value = 0.087). Males came closer to meeting recommended daily water intake (64 oz. or more) than females (29.8% vs. 20.9%). This statement was based on carrying out a chi-square test of homogeneity using data in a two-way table where rows corresponded to sex (male, female) and columns corresponded to number of servings of water consumed per day, with categories none, one, two to three, four to five, and six or more. A) What hypotheses did the researchers test? H0: Sex and number of servings of water consumed per day are not independent. Ha: Sex and number of servings of water consumed per day are independent. H0: The proportions falling into each of the water categories are the same for both sexes.Ha: The proportions falling into each of the water categories are not the same for both sexes. H0: The…

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