Please do this on MS EXCEL. Please show the step by step process on EXCEL. So I can use it as a guide. Thank you. C. ANOVA1. Table below shows the results obtained in an investigation into the stability of a fluorescent reagent storedunder different conditions. The values given are fluorescence signals (in arbitrary units) from dilute solutions ofequal concentration. Three replicate measurements were made on each sample.Conditions Trial 1 Trial 2 Trial 3FreshlypreparedStored for 1hr in thedarkStored for 1hr insubduedlightStored for 1hr in bright 90light1021001011011011049795999294Is there any significant difference in the conditions applied to the stability of the reagent? (

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Answered: C. ANOVA 1. Table below shows the…

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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A researcher conducts a two-year study comparing the number of cavities in a group of 30 randomly selected young children from the community before and after the application of fluoride to test if there is a decrease in the number of cavities. This is an example of a/an: Independent-samples t test or Dependent-samples t test?
In a study of tooth paste, 40 children used paste without fluoride resulting in a mean of 5.65 cavities with s1=1.3 . 40 children used paste with fluoride and this sample revealed mean of 4.75 cavities with s2=1.1. Do these results indicate a significant difference between two groups? Perform two-sided test at 2% SL, give all steps of procedure, interpret obtained result in terms of given example.
The median pH level of the rain in a certain county, was 4.90. A biologist obtains a random sample of 19 rain dates and obtains the following data. Test the hypothesis that the median pH level has decreased from 4.90 at the alpha= 0.05 level of significance.
Poly(3-hydroxybutyrate) (PHB), a semicrystalline polymer that is fully biodegradable and biocompatible, is obtained from renewable resources. From a sustainability perspective, PHB offers many attractive properties though it is more expensive to produce than standard plastics. The accompanying data on melting point (°C) for each of 12 specimens of the polymer using a differential scanning calorimeter appeared in an article. (b) the sample variance s2 from the definition [Hint: First subtract 180 from each observation.] (c) the sample standard deviation (d) s2 using the shortcut method
A study comparing three different treatment conditions is summarized below. Is there a significant difference between any of the treatment groups? Evaluate at the .05 significance level. Show all calculations. Treatment 1: n = 10 T = 10 SS = 27 Treatment 2: n = 10 T = 20 SS = 16 Treatment 3: n = 10 T = 30 SS = 23 N = 30 G = 60 · State the null and alternate hypotheses · Identify the critical F value · Calculate: SS (total, within, between) df (total, within, between) MS (within, between) F · State your conclusion about the null hypothesis. · What percentage of variance is explained by treatment condition?
We want to use a z-test to determine if the sample mean is less than 30 at alpha = 0.05. Use the z-table to find the critical value(s)
The Office of the university registrar would like to know if such degree programs are related to the gender of the students. The test claim that the proportions of the students enrolled are equal in each degree program at alpha=0.10 Using the data on the number of currently enrolled students in each gender (M of F) in each of the four degree programs, find the: a. Table showing the observed and expected values b. Chi-square critical Value c. Chi-square test statistic d. Accept or Reject the null hypothesis?
Dr. Ingrid is conducting an experiment to see whether time spent reading is related to poor vision. To do so, she creates three groups and randomly assigns 17 participants to each: the first group reads for 30 min a day, the second group reads for 1hr a day, and the third group reads for 1.5 hrs a day. Dr. Ingrid plans on using a one-way ANOVA to analyze the results of her experiment. If Dr. Ingrid has set alpha to .01, what will be her critical value of F?
A study comparing three different treatment conditions is summarized below. Is there a significant difference between any of the treatment groups? Evaluate at the .05 significance level. Show all calculations. Treatment 1: n = 10 T = 10 SS = 27 Treatment 2: n = 10 T = 20 SS = 16 Treatment 3: n = 10 T = 30 SS = 23 N = 30 G = 60 capital sigma space X squared space equals space 206 · State the null and alternate hypotheses · Identify the critical F value · Calculate: SS (total, within, between) df (total, within, between) MS (within, between) F · State your conclusion about the null hypothesis. · What percentage of variance is explained by treatment condition?
Sony would like to test the hypothesis that the average age of a PlayStation user (mu 1) is greater than the average age of an Xbox user (mu 2). A random sample of 36 PlayStation users had an average age of 34.2 years while a random sample of 30 Xbox users had an average age of 32.7 years. Assume that the population standard deviation for the age of PlayStation and Xbox users is 3.9 and 4.0 years, respectively. Sony would like to set alpha = 0.01. The critical value is ________ and the null hypothesis should _______. Select one: a. -2.33; be rejected. b. 2.33; not be rejected. c. 1.96; be rejected. d. 1.645; not be rejected.
The average drying time of a manufacturer’s paint is 20 minutes. Investigating the effectiveness of a modifica-tion in the chemical composition of her paint, the manu-facturer wants to test the null hypothesis μ = 20 minutes against a suitable alternative, where μ is the average dry-ing time of the modified paint. (a) What alternative hypothesis should the manufactureruse if she does not want to make the modification in thechemical composition of the paint unless it decreases thedrying time?(b) What alternative hypothesis should the manufactureruse if the new process is actually cheaper and she wants tomake the modification unless it increases the drying timeof the paint?
We plan to run a two-tailed t-test. Our sample size is 8, and we've decided upon an alpha level of 0.01. From the t-table, what is the t critical value(s)?

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