6.28[Data Set: L06028] The following sample of 16 measurements was selectedfrom a population that is approximately normally distributed:9180991109510678121106100978210083115104a. Construct an 80% confidence interval for the population mean.b. Construct a 95% confidence interval for the population mean and comparethe width of this interval with that of part a.c. Carefully interpret each of the confidence intervals and explain why the 80%confidence interval is narrower.

Answered: Image /qna-images/answer/a4dff287-1fbb-4c56-8227-7aa485eebc04.jpg

Answered: [Data Set: L06028] The following sample…

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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Refer to the accompanying data set and construct a 95% confidence interval estimate of the mean pulse rate of adult females; then do the same for adult males. Compare the results. Click the icon to view the pulse rates for adult females and adult males. Pulse Rates Pulse Rates (beats per minute) 84 76 50 61 53 63 52 74 55 63 75 60 62 77 82 64 69 94 41 88 Males 74 63 75 71 57 66 55 80 75 63 63 97 60 63 57 58 65 73. 82 56 4 Print Females 79 92 60 68 56 81 77 85 88 58 37 63 87 77 81 63 67 80 58 62 82 82 71 76 88 92 89 91 91 97 66 92 80 78 72 53 102 73 76 74 Done - X
2) The following data represent the number of passengers per flight in a random sample of 20 flights from Vienna, Austria, to Cluj-Napoca, Romania, with a new airline: 96 95 70 74 28 63 64 94 37 83 25 48 80 52 48 52 38 47 79 65 a) Find a 99% confidence interval for the mean number of passengers per flight. b) Find a 95% confidence interval for the population standard deviation.
Given two independent random samples with the following results: ₁ = 16 n₁ = 8 ₁ = 98 ₁ = 70 s₁ = 15 5 = 19 Use this data to find the 90% confidence interval for the true difference between the population means. Assume that the population variances are equal and that the two populations are normally distributed. Step 3 of 3: Construct the 90% confidence interval. Round your answers to the nearest integer. Copy Data
For the data set below, calculate r, r2, and a 95 percent confidence interval in r units. Then write a one- to two sentence conclusion statement that includes whether the null hypothesis was rejected or not and whether there is a strong /weak/no relationship. Assume a two tailed hypothesis and α = .05. Case 1 Case 2 Case 3 Case 4 Case 5 Case 6 X 1.05 1.15 1.30 2.00 1.75 1.00 Y 2 2 3 4 5 2
Given two independent random samples with the following results: n₁ = 16 n₂ = 8 x₁ = 94 X2: $₁ = 16 = 124 $2 = 28 Use this data to find the 90% confidence interval for the true difference between the population means. Assume that the population variances are equal and that the two populations are normally distributed. Copy Data Step 2 of 3: Find the margin of error to be used in constructing the confidence interval. Round your answer to six decimal places.
A college alumni Organization sent a survey to all recent graduates to ask their annual income. 20% of the alumni responded, and their mean annual income was $40,000 with a standard deviation of $10,000. Explain why these data should not be used to construct a confidence interval for the mean annual income of all recent graduates.
The data set below represents the weights in grams of 10 randomly selected adult male fox squirrels from a forest. Assume the weights are normally distributed. 821 857 782 930 720 821 794 876 810 840 Find the sample mean and sample standard deviation Construct a 90% confidence interval for the population mean. Interpret the results from b.
Given two dependent random samples with the following results: Population 1 48 29 32 29 38 31 28 Population 2 45 38 41 16 40 28 38 Use this data to find the 95% confidence interval for the true difference between the population means. Assume that both populations are normally distributed. Copy Data Step 2 of 4 : Calculate the sample standard deviation of the paired differences. Round your answer to six decimal places.
The following data represent a random sample of five measurements from a normally distributed population: 7,4,2,5,7 a. Find 90% confidence interval for u. b. Find a 99% confidence interval for u.
For the given data below, determine: a) the mean b) the standard deviation c) the variance d) the coefficient of variation e) the 95% confidence interval for the mean Also (f) construct a histogram using a range from 7.5 to 11.5 with intervals of 0.5:8.8, 9.5, 9.8, 9.4, 10, 9.4, 10.1, 9.2, 11.3, 9.4, 10, 10.4, 7.9, 10.4, 9.8, 9.8, 9.5, 8.9, 8.8, 10.6, 10.1, 9.5, 9.6, 10.2, 8.9
1. Find the sample standard deviation from the following data. 1420,1223,988,694,730,836,721,742,541,623,1449,950 2., Construct a 99%confidence interval for the population mean μ.
Given two dependent random samples with the following results: Population 1 46 37 39 26 31 27 22 Population 2 42 44 37 22 45 25 31 Use this data to find the 95%95% confidence interval for the true difference between the population means. Assume that both populations are normally distributed. Copy Data Step 3 of 4 : Calculate the margin of error to be used in constructing the confidence interval. Round your answer to six decimal places.

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