7. Of 2,872 persons who had received radiation treatment in childhood because of an enlargedthymus, cancer of the thyroid developed in 24 and a benign thyroid tumor developed in 52. Acomparison group consisted of 5,055 children who had received no such treatment (brothers andsisters of the children who had received radiation treatment). During the follow-up period, none ofthe comparison group developed thyroid cancer, but benign thyroid tumors developed in 6.A. Create a 2x2 table.

Answered: Image /qna-images/answer/215ff35f-dfac-46e5-8659-5897b4e67c2f.jpg

Answered: 7. Of 2,872 persons who had received…

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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Consider a case where 400 fish are tagged and released during a first outing. During a second outing in the same area, 400 fish are again caught and released, of which half are already tagged. Estimate N, the total number of fish in the entire sampling area.
A batch of 130 semiconductor chips is inspected by choosing a sample of 3 chips. Assume 5 of the chips do not conform to customer requirements. How many different samples are possible? How many samples of three contain exactly two nonconforming chips? O a. NONE O b.286,243,776 1,431,218,880 Oc. 11,358,880 113,588,800 O d. 125, 625
From a survey participated by 42 students, the following were found:9 studied on Friday; 18 studied on Saturday; 30 studied on Sunday; 3 studied on both Friday and Saturday; 10 studied on both Saturday and Sunday; 6 studied on both Friday and Sunday; 2 studied on Friday, Saturday and Sunday. How many students did not study at all?
O 500 men and 519 women are polled as to whether appearance in a member of the opposite sex is important to them, with 412 of the men and 298 of the women replying in the affirmative. To a 1% level of significance, can it be asserted that, in general, a greater percentage of men than women find appearance in a member of the opposite sex important?
1) The data below come from a study that investigated the usefulness of MRI to diagnose breast cancer. Of the 650 women in the study, 13 had breast cancer, and the MRI exam detected breast cancer in 12 of these women. Of the 637 women who did not have breast cancer, the MRI correctly identified that no cancer was present for 547 of them. The accompanying table summarizes this information. Breast Cancer Present Breast Cancer NOT Present Total MRI Indicated Breast Cancer 12 90 102 MRI Did NOT Indicate Breast Cancer 1 547 548 Total 637 650 Suppose that an MRI exam is used to decide between the two hypotheses. HO: A woman does not have breast cancer. Ha: A woman has breast cancer. A. In the context of this problem explain what a Type I error would mean B. In the context of this problem explain what a Type II error would mean.
I need help with #2, part F.
Two new accessions of pepper were tested for pungency. The two accessions were given to ten persons who scored the pepper samples as 1 if it is the more pungent of the two and 0 , otherwise. Which test can be conducted to compare pungency of the two new accessions? a. F-test B. Friedman C. t-test D. sign test
26) A phycologist is interested in determining the proportion of algae samples from a local rivulet that belonged to a particular phylum. A random sample of 50 algae was obtained and each alga was categorized as either being cyanobacteria or not. It was found that 38 were, in fact, cyanobacteria. a) The proportion p that was cyanobacteria isA. 38B. 0.38C. 0.5D. 0.76E. 50 b) (Continue from the previous question),What is the standard error of the proportion p, i.e. S.E.(p), that were cyanobacteriaisA. 0.0036B. 0.0604C. 0.0684D. 0.1824E. None of the above
A population consists of a batch of 24,683 aspirin tablets, and it includes 1,050 that are defective because they do not meet specifications. A random sample of n = 200 of the tablets is obtained and tested, with the result that 15 of them are defective. a. What is the population proportion, p, of defective aspirin tablets? b. What is the sample proportion, p, of defective tablets? c. How can the discrepancy between the population proportion and the sample proportion be explained? a. The population proportion of defective aspirin tablets is p = (Round to three decimal places as needed.) b. The sample proportion of defective aspirin tablets is p= (Round to three decimal places as needed.) c. Choose the correct answer below. C O A. There will always be a discrepancy between the population proportion and the sample proportion when the sample size is small. O B. Random samples collected with sound sampling methods vary, and the sample proportions differ from the population proportion…
Some students are sampled at random from the cohort at a certain university and their heights recorded. The university has a student cohort of 1000, and 100 students are sampled. Thirty students are 175cm, thirty are 160cm, fifteen are 163cm, ten are 180cm, ten are 158cm, and five are 170cm. To three significant figures, how many resamples of size 100 can one make from this data? 4.53 × 1058 3.72trillion 2.63 × 1051 135million 3.72 x 1048
11. Between-groups degrees of freedom is calculated by: Oa. subtracting 1 from the total number of subjects in the study. Ob. subtracting 1 from the total number of groups in the study. O subtracting I from the number of subjects within each group and then adding those numbers C. together. Od. multiplying the number of subjects by the number of conditions in the study and then subtracting 1. 12. If an F statistic is negative, which of these is true? Oa. There has been a calculation error. Ob. The difference among the group means is greater than what would have occurred by chance. Oc. The difference among the group means is less than what would have occurred by chance. Od. The within-groups variance exceeds the between-groups variance.
It is known that 9 out of 10 people are right handed. Would 35 right handed people out of group of 93 be considered significantly low, significantly high, or neither? Show your work below.

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