You wish to test the following claim (Ha) at a significance level of a = 0.02.Ho: p=0.51Ha:p> 0.51You obtain a sample of size n = 632 in which there are 350 successful observations.What is the critical value for this test? (Report answer accurate to three decimal places.)critical value=What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic =

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Answered: You wish to test the following claim…

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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Available below are amounts of arsenic in samples of brown rice from three different regions. The amounts are in micrograms of arsenic and all samples have the same serving size. Use a 0.05 significance level to test the claim that the three samples are from populations with the same mean. Do the amounts of arsenic appear to be different in the different regions? Given that the amounts of arsenic in the samples from region C have the highest mean, can we conclude that brown rice from region C poses the greatest health problem? view the data table of the arsenic amounts. Arsenic Amounts (micrograms) A 4.9 4.9 4.9 5.2 5.3 5.5 5.6 5.7 5.8 5.9 6.1 6.3 B 2.3 3.6 4.5 4.6 4.8 4.8 4.8 5.1 5.1 5.4 5.4 5.5 C 5.7 5.7 6.7 6.9 7.1 7.2 7.2 7.3 7.3 7.4 7.5 7.6 The P-value is?
You wish to test the following claim (Ha) at a significance level of a = 0.002. H.:p= 0.48 H.:p < 0.48 You obtain a sample of size = 606 in which there are 269 successful observations. Determine the test statistic formula for this test. What is the test statistic for this sample? (Report answer accurate to three decimal places.)
Decide whether the following scenarios are example of type 1 error or type 2 error or neither? Use the traditional 0.05 cut-off for statistical significance. A study was conducted to determine whether babies born in January were heavier than babies born in February. In reality, there is a difference in the weights between the two groups of babies. In the sample the mean weight of those born in January was 6.2 pounds and the mean weight of those born in February was 5.9 pounds. The p-value for this difference was 0.27. Neither Type 2 error Type 1 error
You wish to test the following claim (Ha) at a significance level of α=0.002. Ho:p=0.31 Ha:p>0.31You obtain a sample of size n=143 in which there are 56 successful observations.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic =What is the p-value for this sample? (Report answer accurate to three decimal places.)p-value =
Random samples were taken of the number of daily visitors to Goldstream Park and French Beach Provincial Park. Randomly selected days were chosen and the number of daily visitors was recorded. Assume both populations are Normal. The summary statistics as follows: sample size sample/mean/ sample standard deviationGoldstream m=20/ 120/ 33French Beach n=29/ 103/ 20Suppose we wish to test whether the mean number of visitors at Goldstream is greater than the mean number of visitors at French Beach. Our calculated test statistic is 2.05. What is the p-value for the appropriate hypothesis test within the accuracy of your tables.
You wish to test the following claim (H,) at a significance level of a = 0.01. H.:P = P2 You obtain 53.8% successes in a sample of size n = 236 from the first population. You obtain 40.3% successes in a sample of size na = 477 from the second population. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic= What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a O greater than a This test statistic leads to a decision to... O reject the null O accept the null O do not reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the first population proportion is not equal to the second population proprtion. O There is not sufficient evidence to warrant rejection of the claim that the first population proportion is not equal to the second population proprtion. O The sample data…
Save Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of measurements yield x= 100.88, y= 100.7, r=0.914, P-value = 0.000, and y = - 10.01+1.1x, where x represents the IQ score of the wife. Find the best predicted value of y given that the wife has an lIQ of 90? Use a significance level of 0.05. E Click the icon to view the critical values of the Pearson correlation coefficient r. Critical Values of the Pearson Correlation Coefficientr Critical Values of the Pearson Correlation Coefficient r a = 0.05 0.950 0.878 NOTE: To test H: p=0 against H,: p# 0, reject Ho f the absolute value of r is greater than the critical value in the table. a= 0.01 The best predicted value of y is. (Round to two decimal places as needed.) 0.990 0,959 4 0.811 0.754 0.707 0.666 0.632 0.602 0.576 0.917 0.875 0.834 0.798 0.765 0.735 0.708 0.684 0.661 0.641 6. 8. 10 11 12 13 0.553 0.532 0.514 0.497 14 15 16 0.623 17 0.606 0.590 0.575 0.561 0.505 0.482 0.468 18 0.456 0.444 19…
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Next Question A data set about speed dating includes "like" ratings of male dates made by the female dates. The summary statistics are n= 184, x = 6.51, s = 2.05. Use a 0.10 significance level to test the claim that the population mean of such ratings is less than 7.00. Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? O A. Ho:H7.00 O B. Ho: H=7.00 H:H>7.00 OC. Ho:H=7.00 H:u#7.00 O D. Ho: H= 7.00 H:H<7.00 Determine the test statistic. (Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.) State the final conclusion that addresses the original claim. Ho. There is evidence to conclude that the mean of the population of ratings is 7.00. Click to select your answer(s). esc %23 24 5 6 3 T. Q W E tab J K G * 00 F.
Pairs of P-values and significance levels, a, are given. For each pair, state whether you would reject Ho at the given significance level. a. P-value = .084, a = .05 b. P-value = .003, a = .001 %3D c. P-value = .498, a = .05 d. P-value = .084, a = .10 e. P-value = .039, a = .01 f P.value 218, α 10
Use the given sample data to test the claim that p1 > p2. Use a significance level of 0.01.Sample 1 Sample 2n1 = 85 n2 = 90x1 = 38 x2 = 23
You wish to test the following claim (Ha) at a significance level of α=0.05. Ho:p1≤p2Ho:p1≤p2 Ha:p1>p2Ha:p1>p2You obtain a sample from the first population with 75 successes and 587 failures. You obtain a sample from the second population with 15 successes and 253 failures. test statistic = [three decimal accuracy] p-value = [four decimal accuracy] The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null hypothesis fail to reject the null hypothesis As such, the final conclusion is that... There is sufficient evidence to support that the first population proportion is greater than the second population proportion. There is not sufficient evidence to support that the first population proportion is greater than the second population proportion.

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