Use the 5 steps in Hypothesis Testing. The following data were obtained in an experiment designed to check whether there is a systematic difference in the weights obtained with two scales at a significant level of 5.0%. SCALE 1 SCALE 2 12.13 12.17 17.56 17.61 9.33 9.35 11.40 11.42 28.62 28.61 10.25 10.27 23.37 23.42 16.27 16.26 12.43 12.45 24.78 24.75

Use the 5 steps in Hypothesis Testing. The following data were obtained in an experiment designed to check whether there is a systematic difference in the weights obtained with two scales at a significant level of 5.0%. SCALE 1 SCALE 2 12.13 12.17 17.56 17.61 9.33 9.35 11.40 11.42 28.62 28.61 10.25 10.27 23.37 23.42 16.27 16.26 12.43 12.45 24.78 24.75

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

what is the df and what test statistic is applicable in this situation?
Use the following information to determine the sampling interval for the given test: NOTE: The percentages across the top row are percentage of tolerable misstatement as a percentage of population Risk of incorrect acceptance 5% 5% 5% 10% 10% 10% Expected misstatement as a % of tolerable misstatement .1 .2 .3 .1 2 .3 Confidence level Ratio of expected to tolerable misstatement 8% 38 46 58 29 6% 43 50 95% 20% (2) Tolerable misstatement as percentage of population Population size in dollars $1,100,000 SHOW YOUR WORK/EXPLAIN YOUR CALCULATIONS. 6% 50 62 78 39 57 70 4% 60 74 93 47 69 89
In studying the responses to questions on a multiple-choice test, the following sample data are obtained. At the a 0.05 significance level, test the claim that the responses occur with the same frequency. Ho: The responses to the questions occur with the same frequency. H₁: The responses to the questions do not occur with the same frequency. Observed Response Frequency Expected Frequency (0-E)2 E A 6 16.2 8 B 10 16.2 C 24 16.2 D 18 16.2 8 E 23 16.2 a. What is the X2 test-statistic for this data? Round to four decimal places. x²= b. What is the p-value? Round to four decimal places. p-value= c. What would be the conclusion of this hypothesis test? O Fail to reject the hull hypothesis. Reject the null hypothesis. d. What is the final conclusion? O There is sufficient evidence to conclude the test question responses occur with the same frequency. There is sufficient evidence to conclude the test question responses do not occur with the same frequency. O There is not sufficient evidence to…
Given the data below, what is the calculated test statistic? Placebo Medication 1 Medication 2 3 4 9 1 3 7 3 5 8 2 5 11 4 4 9 3 SS1 = 5.33 SS2 = 2.8 SS3 = 8.8 T1 = 16 T2 = 21 T3 = 44 n1 = 6 n2 = 5 n3 = 5 ∑X2 = 53 Do you reject the null? Yes No Was there a treatment effect for type of medication on number of anti-anxiety symptoms? Yes No
5. A sample of 500 male registered voters showed that 57% of them are in a favor of higher taxes on wealthy people. Another sample of 400 female registered voters showed that 54% of them are in favor of higher taxes on wealthy people. Test at the 1% significance level if the proportion of all male voters who are in favor of higher taxes on wealthy people is not different from that of female voters against two-sided alternative.
The weights of a sample of newborn calves are recorded in the table below: Male weight (kg) Female weight (kg) 36.8 37.2 12.6 39.1 38.2 41.7 31.9 46.8 37.5 43.0 45.7 42.2 31.3 A hypothesis test at a 5% level of significance is conducted to see whether the mean weight of male calves, is the same as the mean weight ir of female calves. a State the null and alternative hypotheses. b Assuming the weights of both male and female calves are normally distributed with the same standard deviation, calculate the p-value for this test. c State, with a reason, whether the null hypothesis should be uccepted.
consider the following data
Kenneth, a competitor in cup stacking, claims that his average stacking time is 8.2 seconds. During a practice session, Kenneth has a sample stacking time mean of 7.8 seconds based on 11 trials. At the 4% significance level, does the data provide sufficient evidence to conclude that Kenneth's mean stacking time is less than 8.2 seconds? Accept or reject the hypothesis given the sample data below. H0:μ=8.2 seconds; Ha:μ<8.2 seconds α=0.04 (significance level) z0=−1.75 p=0.0401 Select the correct answer below: a. Do not reject the null hypothesis because the p-value 0.0401 is greater than the significance level α=0.04. b. Reject the null hypothesis because the p-value 0.0401 is greater than the significance level α=0.04. c. Reject the null hypothesis because the value of z is negative. d. Reject the null hypothesis because |−1.75|>0.04. e. Do not reject the null hypothesis because |−1.75|>0.04.
Test the claim that the proportion of people who own cats is significantly different than 20% at the 0.1 significance level. The null and alternative hypothesis would be: Ho:p 2 0.2 Ho:p = 0.2 Ho: u 0.2 Ho: u = 0.2 Ho:p 0.2 H1 : p 0.2 The test is: left-tailed two-tailed right-tailed Based on a sample of 700 people, 11% owned cats The p-value is: 0.1 x (to 2 decimals) Based on this we: O Fail to reject the null hypothesis O Reject the null hypothesis
Given the following hypothesis ( null and alternative ), test statistic, and sample size, find the appropriate P- Value: A. H0: p= .3, p = .3 , Ha: p ≠ .3, n = 31, *z= -2.70 ( choose one ) a. .0035 b. .0060 c. .0070 d. .0120 B. H0: ? = .7, Ha: ? ≠ .7, n= 41, *t= -1.90 ( choose one ) a. .0287 b. .0320 c. .0574 d. .0640
The following are absence rates from work for a sample of 12 employers in England. 5.3 5.8 7.5 5.1 5.3 5.1 5.3 8.1 6.5 5.9 6.1 5.3 A sign test is carried out to test the hypothesis that the median absence rate from work in England is 5.3%. What is the test statistic? What is the sample size that should be used in the hypothesis test? Choose... v Choose... v
Thanks