Question Help vListed below are the lead concentrations in ug/g measured in different traditional medicines. Use a 0.01 significance level to test the claim that the mean lead concentration for all such medicines is less than 18 ug/g. Assume that the sample is asimple random sample.12.517.522 6.5 18 1816196.5 DAssuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses?Ο Α. Ho μ 18 μgaH,: µ#18 ug/gO B. Ho: = 18 ug/gH;: µ< 18 µg/gO c. Ho : μ= 18 μ oH: u> 18 ug/gO D. Ho: u> 18 µg/gΗ : μ< 18 μgDetermine 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.V Ho. There isevidence to conclude that the mean lead concentration for all such medicines isV18 μg g.?Click to select your answer(s).MacBook AiDII80888F7FSFAF3escF2&de23%2485672341PUQWE11JKFGI

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Question Help ▼ Listed below are the lead concentrations in ug/g measured in different traditional medicines. Use a 0.01 significance level to test the claim that the mean lead concentration for all such medicines is less than 18 ug/g. Assume that the sample is a simple random sample. 12.5 17.5 22 6.5 18 18 16 19 6.5 O Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? O B. Ho: u= 18 ug/g O A. Ho: u= 18 ug/g H,: u#18 ug/g Η; μ< 18 μglg OC. Ho: =18 ug/g H: u> 18 ug/g O D. Ho: u> 18 pg/g H : μ< 18 μg9 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. V 18 ug/g. evidence to conclude that the mean lead concentration for all such medicines is V Ho. There is ? Click to select your answer(s). MacBook Air DII F7 888 FS FA & F2 esc %24 7 8 2# 6 4 3 1 2 Y

Question Help ▼ Listed below are the lead concentrations in ug/g measured in different traditional medicines. Use a 0.01 significance level to test the claim that the mean lead concentration for all such medicines is less than 18 ug/g. Assume that the sample is a simple random sample. 12.5 17.5 22 6.5 18 18 16 19 6.5 O Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? O B. Ho: u= 18 ug/g O A. Ho: u= 18 ug/g H,: u#18 ug/g Η; μ< 18 μglg OC. Ho: =18 ug/g H: u> 18 ug/g O D. Ho: u> 18 pg/g H : μ< 18 μg9 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. V 18 ug/g. evidence to conclude that the mean lead concentration for all such medicines is V Ho. There is ? Click to select your answer(s). MacBook Air DII F7 888 FS FA & F2 esc %24 7 8 2# 6 4 3 1 2 Y

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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It is believed that the waiting time for a service has a population mean value of µ =13 minutes. One wants to test whether the population mean is 13 minutes. The waiting time of a sample of 60 services is collected. The significance level alpha is set at 5%. The Excel data analysis results are presented in table 2. Give appropriate null and alternative hypotheses. Null hypothesis H0: µ =13 minutes Alternative hypothesis H1: µ =/13 minutes Find the p value for this test. The p value: Click or tap here to enter text. What decision should be made about the hypotheses? Give evidence for your choice. Click or tap here to enter text. Table 2: One sample t-test results Variable Mean 14.72 Variance 34.38 Observations 60.00 Hypothesized Mean Difference 0.00 Df 59.00 t Stat 2.27 P(T<=t) one-tail 0.02 t Critical one-tail 1.67 P(T<=t) two-tail 0.04 t Critical two-tail 2.00
Test the claim about the population mean, µ, at the given level of significance using the given sample statistics. Claim: μ = 50; x = 0.05; o = 3.12. Sample statistics: x = 48.8, n = 76 Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: μ = 50 H₂:μ#50 O C. Ho: μ> 50 H₂: μ = 50 O E. Ho: μ = 50 H₂:μ>50 O B. Ho: μ<50 H₂: H=50 O D. Ho: μ = 50 Ha:μ < 50 O F. Ho: μ#50 H₂:μ=50
Listed below are the lead concentrations in μg/g measured in different traditional medicines. Use a 0.05 significance level to test the claim that the mean lead concentration for all such medicines is less than 14 μg/g. Assume that the sample is a simple random sample. 15.5 3.5 2.5 4 14 6.5 15.5 3.5 16 9 Determine the test statistic._______ Determine the P-value.________ State the final conclusion that addresses the original claim._______
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 69bpm. Use a 0.05 significance level. Determine the p-value, test statistic, and whether to reject or support the null hypothesis. Pulse Rates (bpm)4758945542428462993656838640967652866179101964387103596043524566974010140833853398649613552933856446594
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 74 bpm. Use a 0.01 significance level. E Click the icon to view the pulse rate data. Pulse Rate Data Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? Pulse Rate (bpm) O A. Ho: H= 74 bpm H1: H 74 bpm 57 35 104 86 ОС. Но: и» 74 bpm H1: µ<74 bpm O D. Ho: H=74 bpm H1: µ+74 bpm 97 101 62 49 59 73 Determine the test statistic. 69 45 104 42 |(Round to two decimal places as needed.) 52 105 99 36 Determine the P-value. 74 54 (Round to three decimal places as needed.) 105 60 56 82 State the final conclusion that addresses the original claim. 88 75 52 59 V Ho. There is evidence to conclude that the mean of the population of pulse rates for adult females is V 74 bpm. 82 104 97 76 76 47 97 74 63 52 93 98 104 53 35 35 100 39 Click to select your answer(s). 58 41
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 78 bpm. Use a 0.05 significance level. Click the icon to view the pulse rate data. Assuming all conditions for conducting a hypothesis test are met, what are the null and altenative hypotheses? OA. Họ: =76 bpm H: p> 76 bpm OB. Ho: 70 bpm H:u 76 bpm H;:H<76 bpm Determine the test statistic. O (Round to two decimal places as needed) Determine the P-value. O (Round to three decimal places as needed.) State the final conclusion that addresses the original claim. Ho. There is V evidence to conclude that the mean of the population of pulse rates for adult females is 76 bpm.
Consider a drug that is used to help prevent blood clots in certain patients. In clinical trials, among 5797 patients treated with this drug, 151 developed the adverse reaction of nausea. Use a 0.10 significance level to test the claim that 3% of users develop nausea. Does nausea appear to be a problematic adverse reaction? Question content area bottom Part 1 Identify the null and alternative hypotheses for this test. Choose the correct answer below. A. H0: p≠0.03 H1: p=0.03 B. H0: p=0.03 H1: p<0.03 C. H0: p=0.03 H1: p>0.03 D. H0: p=0.03 H1: p≠0.03 Your answer is correct. Part 2 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is enter your response here. (Round to two decimal places as needed.)
Listed below are the lead concentrations in µg/g measured in different traditional medicines. Use a 0.05 significance level to test the claim that the mean lead concentration for all such medicines is less than 16 µg/g. Assume that the sample is a simple random sample. 17.5 17 9 22.5 7.5 6 8.5 7.5 21.5 15.5 Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? O A. Ho: μ16 µg/g H₁: μ16 μg/g OC. Ho: μ16 µg/g H₁: μ 16 µg/g H₁: μ 16 µg/g ✔ evidence to conclude that the mean lead concentration for all such medicines is 16 μg/g.
Determine P-Value.
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.
Use a y-test to test the claim o = 0.48 at the a = 0.01 significance level using sample statistics s = 0.466 and n = 15. Assume the population is normally distributed. Identify the null and alternative hypotheses. YA. Ho: o? = 0.48 O B. Ho: o 20.48 H:o +0.48 H,: o 0.48 Identify the test statistic. (Round to two decimal places as needed.)