Answered: review(5c): Given the ANOVA table…

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 survey of 120 fatal accidents showed that in 24 cases the driver at fault was inadequately insured. Determine the point estimate for p, the population proportion of accidents where the driver at fault was inadequately insured (round to nearest hundredth)
Please scroll down to see the entire question. The quality control manager of an automobile parts factory would like to know whether there is a difference between the proportion of defective parts produced on different days of the work week. Random samples of 100 parts produced on each day of the week were selected, with the following results: Result: Mon Tues Wed Thurs Fri # of defective parts: 12 7 7 10 14 # of non-defective parts: 88 93 93 90 86 At 5% level of significance, is there evidence of a significant difference in the proportion of defective parts produced on the various days of the week (A ) Step-1: State the hypotheses ( H0 and H1 ), and identify the claim A. H0: Proportion of defective parts is not the same for the days of the week. H1: Proportion of defective parts is the same for all days of the week B. H0: Proportion of defective parts is dependent on the days of the week H1: Proportionof defective parts is…
One thousand customers entering a mall, in a city, were randomly selected and asked to rank the variety of stores. The results are given in the following incomplete table. Response Excellent Very good Good Fair Poor Frequency 50 152 255 Answer: Relative frequency 0.4250 0.1180 What proportion of customers did not rank the store variety as very good or excellent? (Type your final answer in decimal form, like 0.25)
Plzz explain. Ty
just the last part, thank you!
Determine the question (X) that converts eachsituation to Yes/No data.a) The proportion of cars that are silver.b) Voter percentage who favor candidate Jones.c) The proportion of defective items
In Problems 9-12, conduct each test at the a= 0.05 level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, (c) the critical value, and (d) the P-value. Assume that the samples were obtained independently using simple random sampling.
Claim: Fewer than 94 % of adults have a cell phone. In a reputable poll of 1119 adults, 87 % said that they have a cell phone. Find the value of the test statistic.
dults aged 18 years old and older were randomly selected for a survey on obesity. Adults are considered obese if their body mass index (BMI) is at least 30. The researchers wanted to determine if the proportion of southern women who are obese is less than the proportion of southern men who are obese. The results are shown in the table below. Test at the 1% level of significance. Number who are obese Sample size Men 42,773 155,525 Women 67,176 248,775 a.State the distribution to use for the test. (Round your answers to five decimal places. b. What is the test statistic c. Conduct a Hypothesis Test
Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors. A sample of 400 students taken from this year's student body showed the following number of students in each classification. Freshmen 113 Sophomores 98 Juniors 115 Seniors 74 We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year. The calculated value for the test statistic equals Select one: a. .54. b. .65. c. 2.063. d. 2.664.
1. A scientist is studying the effect of exercise on blood pressure. He studies 50 people who exercise regularly to find out whether their blood pressures are low, average, or high. This is an example of a(n): Answer choices: sample survey. observational study. experiment.
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 90% confident that the sample percentage is within 1.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. =ח (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 34% of air passengers prefer an aisle seat. =ח (Round up to the nearest integer.)

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review(5c): Given the ANOVA table below ,how many groups are there? Source SS df MS Fstatistic Between 324 Within 1215 27 total 1539 49 (a) 49 (b) 5 (c) 4 (d) 50