How much is in that can? A machine that fills beverage cans is supposed to put 12 ounces of beverage in each can. Following are the amounts measured in a simple random sample of eight cans. 11.91 11.94 11.93 12.04 11.96 12.01 11.80 11.81 Send data to Excel Perform a hypothesis test to determine whether the mean volume is less than 12 ounces. Use the a=0.05 level of significance and the P-value method with the TI-84 Plus calculator. Part 1 of 4 (a) State the appropriate null and alternate hypotheses. Ho H = 12 H:H< 12 This hypothesis test is a left-tailed test. Part: 1/4 Part 2 of 4 (b) Compute the P-value of the test statistic. Round the answer to at least four decimal plann

How much is in that can? A machine that fills beverage cans is supposed to put 12 ounces of beverage in each can. Following are the amounts measured in a simple random sample of eight cans. 11.91 11.94 11.93 12.04 11.96 12.01 11.80 11.81 Send data to Excel Perform a hypothesis test to determine whether the mean volume is less than 12 ounces. Use the a=0.05 level of significance and the P-value method with the TI-84 Plus calculator. Part 1 of 4 (a) State the appropriate null and alternate hypotheses. Ho H = 12 H:H< 12 This hypothesis test is a left-tailed test. Part: 1/4 Part 2 of 4 (b) Compute the P-value of the test statistic. Round the answer to at least four decimal plann

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Description: How much is in that can? A machine that fills beverage cans is supposed to put 12 ounces of beverage in each can. Followingare the amounts measured in a simple random sample of eight cans.11.91 11.94 11.93 12.04 11.96 12.01 11.8011.81Send data to Ex

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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Assume that you want to test the claim that the paired sample data below come from a population from which the mean difference is zero. Using JMP, compute the value of the appropriate test statistic. Do the data appear to come from a population where the mean difference is zero? X: 28 35 25 25 32 30 28 37 Y: 26 31 31 25 33 35 28 33 a. No b. O c. Yes d.
The life span in Honolulu is approximately normally distributed. The mean life span is 77 years. A foreign newspaper claims that the mean lifespan for Honolulu residents is less than 77 years. You randomly select a sample of 20 obituary notices in a Honolulu newspaper. The table below shows the data collected (in years). 72 68 81 93 56 19 78 94 83 84 77 69 85 97 75 71 86 47 66 27 Test the foreign newspaper's claim using a = 0.01. There is enough evidence to reject the null hypothesis. The claim is true. There is enough evidence to reject the null hypothesis. The claim is false. There is not enough evidence to reject the null hypothesis. The claim is probably true. There is not enough evidence to reject the null hypothesis. The claim is probably false.
Use the pulse rates in beats per minute (bpm) of a random sample of adult females listed in the data set available below to test the claim that the mean is less than 77 bpm. Use a 0.01 significance level. Click the icon to view the pulse rate data. Pulse Rate Data Pulse Rate (bpm) 38 65 101 66 71 50 78 48 64 36 65 74 39 101 55 40 85 104 61 98 83 72 35 91 76 99 88 75 62 82 36 92 101 89 67 87 102 66 79 90 101 35 58 48 102 91 74 64 74 73 Q - X
Use technology to help you test the claim about the population mean, p, at the given level of significance, a, using the given sample statistics. Assume the population is normally distributed. Claim: u > 1280; a = 0.07; o = 196.31. Sample statistics: x= 1308.11, n= 200 H p> 1280 Ha: p 1308.11 O D. Ho: Hs 1308.11 Ha ps 1308.11 Ha: p> 1308.11 O E. H, p> 1280 O F. Ho: µ2 1280 Ha: u< 1280 Ha ps 1280 Calculate the standardized test statistic. The standardized test statistic is 2.03. (Round to two decimal places as needed.) Determine the P-value. P 3D (Round to three decimal places as needed.)
In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency gives data on 1170 vehicles. There are a number of high outliers, mainly hybrid gas-electric vehicles. If we ignore the vehicles identified as outliers, however, the combined city and highway gas mileage of the other 1146 vehicles is approximately Normal with mean 23.0 miles per gallon (mpg) and standard deviation 4.9 mpg. Exercises 3.35 through 3.38 concern this distribution 3.37: The middle half. The quartiles of any distribution are the values with cumulative proportions 0.25 and 0.75. They span the middle half of the distribution. What are the quartiles of the distribution of gas mileage?
Samples of starting annual salaries for individuals entering the public accounting and financial planning professions follow. Annual salaries are shown in thousands of dollars. Public Accountant 51.2 59.8 56.3 58.2 55.2 56.0 51.9 60.5 57.0 50.9 Financial Planner 50.0 49.2 54.1 56.9 50.9 53.6 Find the value of the test statistic. W = 75.50 X 49.7 53.9 51.8 48.9 (a) Use a 0.05 level of significance and test the hypothesis that there is no difference between the starting annual salaries of public accountants and financial planners. State the null and alternative hypotheses. O Ho: The two populations of salaries are not identical. H₂: The two populations of salaries are identical. O Ho: Median salary for public accountants - Median salary for financial planners 20 H₂: Median salary for public accountants - Median salary for financial planners 0 O Ho: Median salary for public accountants - Median salary for financial planners > 0 H₂: ₂: Median salary for public accountants - Median salary…
Find the value of a, b, ..., f in the one-way ANOVA table below. SS df MS F Source 361.5 b 60.25 f Treatment a 21 d Error 821.7 e Total
Weights (kg) of poplar trees were obtained from trees planted in a rich and moist region. The trees were given different treatments identified in the accompanying table. Use a 0.05 significance level to test the claim that the four treatment categories yield poplar trees with the same mean weight. Is there a treatment that appears to be most effective? LOADING... Click the icon to view the data table of the poplar weights. No Treatment Fertilizer Irrigation Fertilizer and Irrigation 1.24 0.99 0.09 0.93 0.65 0.94 0.63 1.41 0.41 0.55 0.13 1.06 0.15 0.51 0.88 1.49 1.31 1.01 0.84 Determine the null and alternative hypotheses. H0: ▼ mu 1 greater than mu 2 greater than mu 3 greater than mu 4μ1>μ2>μ3>μ4 Exactly two of the population means are equal.Exactly two of the population means are equal. Not all of the population means are equal.Not all of the population means…
According to the Carnegie unit system, the recommended number of hours students should study per unit is 2. Are statistics students' study hours more than the recommended number of hours per unit? The data show the results of a survey of 11 statistics students who were asked how many hours per unit they studied. Assume a normal distribution for the population. 2, 2.9, 4.5, 0.7, 3.3, 4.5, 4.2, 1.2, 0.9, 1.8, 2.8 What can be concluded at the αα = 0.05 level of significance? The p-value = (Please show your answer to 4 decimal places. Based on this, we should Select an answer fail to reject accept reject the null hypothesis Thus, the final conclusion is that ... The data suggest the populaton mean is significantly more than 2 at αα = 0.05, so there is enough evidence to conclude that the population mean study time per unit for statistics students is more than 2. The data suggest the population mean is not significantly more than 2 at αα = 0.05, so there is enough evidence to…
Does Hypnotism Relieve Pain? The table shows the pain levels of patients before and after hypnotism. Pain level is measured on a cm scale. Assume that the two samples are randomly selected. At the 0.05 significance level, test the claim that the mean difference has increased after hypnotism.(Be sure to subtract in the same direction).
Refer to the data set in the accompanying table. Assume that the paired sample data is a simple random sample and the differences have a distribution that is approximately normal. Use a significance level of 0.10 to test for a difference between the weights of discarded paper (in pounds) and weights of discarded plastic (in pounds). a. Identify the test statistic. t equals (Round to two decimal places as needed.) b. Identify the P-value. P-value equals (Round to three decimal places as needed.)
Researchers sampled fish from a lake and measured the lengths (mm) of all individuals of two species, bream and perch. They were interested in testing whether there was a difference in the mean lengths of the two species in the lake. Based on the output below, what would be the correct conclusion to draw? Mean n Std deviation Std error of mean Bream 531.00 6 309.60 126.39 Perch 154.82 11 78.76 23.75 options: Bream are significantly larger on average than perch in this lake. There is no significant difference in average sizes of the two species of fish from this lake. The variances are different so it is not possible to do a statistical test comparing means. Perch are significantly larger on average than bream in this lake.