1:10 Ь Ь .** 86%MyOpenMathmyopenmath.comChapter 11 homeworkProgress saved DoneScore: 0/80 0/8 answeredQuestion 1B0/10 pts O 10 29 O DetailsYou are conducting a multinomial hypothesis test for the claim that all 5 categories are equally likely to beselected. Complete the table.SquaredPearsonObservedExpectedCategoryFrequency FrequencyResidualA22B910D17E14What is the chi-square test-statistic for this data?x² =Report all answers accurate to three decimal places.Question Help: M Message instructorSubmit QuestionII

The Squared Person Residual is given as: Oi-Ei2EiWhere,Oi=observed frequencyEi=expected frequency

Answered: You are conducting a multinomial…

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 manufacturer of a spot remover claims that his product removes 90% of all spots.If in a sample only 174 of 200 spots were removed with the manufacturer product,test the null hypothesis p=0.90 against the alternative hypothesis p<0.90 at 0.50 level of significance
1) The manager at Gre3n randomly samples 50 glass juicing bottles of hemp seed smoothies. The manager is concerned that the glass juicing bottles may be filled to an amount different from 24 ounces. a) State suitable null and alternative hypotheses. b) How can the manager make a Type I error? c) How can the manager make a Type II error? d) Will the hypothesis test procedure prove that the glass juicing bottles are filled to an amount different from 24 ounces?
A large pizza chain has conducted a study to determine if the types of preferred pizza are independent of the region of the country where it is sold. One hundred random samples are selected in each region of the country with the following results. Areas Thin not Spicy Thin spicy Thick Crust not Spicy Thick Crust Spicy Total Samples Northeast 30 10 40 20 100 Northwest 25 20 45 10 100 Southwest 25 25 25 25 100 Southwest 15 30 10 45 100 Totals 95 85 120 100 400 Set up hypotheses to test if these preferred types of pizza are independent of the region of the country in which they are sold. Perform the appropriate statistical test to obtain your results. Calculate the p value and fully explain your results.
A group of n = 8 students wants to know if the commuting time from home to college by bus is less than the commuting time by car. For this, each of them recorded the time spent using each means of transport. Recorded travel times are shown below. Each pair of values refers to a student, the first value being the time spent by car and the second by bus (both in minutes). Proceed with a hypothesis test appropriate to the significance level α=6%. studen 1 2 3 4 5 6 7 8 Car 15 20 20 20 17 15 10 18 bus 10 22 15 20 12 10 12 10 Difference 5 -2 5 0 5 5 -2 8 a. What range of values is the p-value in?b. There is evidence to reject H0 with the level of significance adopted?
A group of n = 8 students wants to know if the commuting time from home to college by bus is less than the commuting time by car. For this, each of them recorded the time spent using each means of transport. Recorded travel times are shown below. Each pair of values refers to a student, the first value being the time spent by car and the second by bus (both in minutes). Proceed with a hypothesis test appropriate to the significance level α=6%. studen 1 2 3 4 5 6 7 8 Car 15 20 20 20 17 15 10 18 bus 10 22 15 20 12 10 12 10 Difference 5 -2 5 0 5 5 -2 8 a. The test hypotheses in this study are: H0: μd=μCar−μBus=0 and Ha: μd=μCar−μBus > 0?b. The test statistic value calculated based on the data is:c. The critical (absolute) value of the test for the desired significance level is:
A study found that, in 2005, 12.5% of workers belonged to unions. Suppose a sample of 400 workers is collected in 2006 to determine whether union efforts to organize have increased union membership. The sample result show that 68 of the workers belonged to unions. State the null hypothesis Ho and alternative hypothesis Ha.
A doctor claims that less than 30% of all persons exposed to a certain amount of radiation will feel any ill effects.If in a random sample only 1 of 19 persons exposed to such radiation felt any ill effects,test Ho:p=0.30 against H1:p<0.30 at the 0.05 level of significance
In a recent survey, it was stated that Americans watch television on average four hours per day. Assume that σ = 2. Using 40 students as the sample, conduct a hypothesis test to determine if the average for students at your school is lower:1. Ho: _______________2. Ha: _______________ 3. level of significance = 0.05 4. Test Statistic: ( Use this statistic for the computation of z).5. Computation: 6. Decision: _________________________________________________________________ 7. Conclusion: ______________________________________________________________
A doctor claims that less than 30 percent of all per-sons exposed to a certain amount of radiation will feel any ill effects. If, in a random sample, only 1 of 19 per-sons exposed to such radiation felt any ill effects, test the null hypothesis θ = 0.30 against the alternative hypothe-sis θ < 0.30 at the 0.05 level of significance.
Due to a manufactoring error, three cans of regular soda were accidently filled with diet soda, placed into a 12-pack. Suppose that two cans were randomly selected from the 12-pack. A) determine the probabilty that that neither contain diet soda. Would this be unusual? B) Determine the probabilty that exactly one is diet.
In an experiment with the effect of different feeding on sheep fertility, two feed categories were examined, A and B. 192 rivers were given feed category A and 190 were given feed category B. The following number of monocotyledonous and dicotyledonous sheep were obtained in each category: Feed category A Feed category B Monocotyledonous 60 82 Dicotyledonous 132 108 Examine with an appropriate hypothesis test whether there is a difference in fertility by feed category.
Suppose a research study uses two independent groups with 31 participants in each group. If a t-test analysis produces a calculated value of t of 2.22, which of the following is the correct decision? A. At the .05 level of significance, reject the null hypothesisB. At the .05 level of significance, fail to reject the null hypothesisC. At the .01 level of significance, reject the null hypothesisD. Impossible to answer without additional information

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