A credt score is uned by cedt agencies (uch as mortjage comparios and barks) to assess the arediwarthiness of individuah. Vahes range from 300 to 50, with a cedt se ever 700 connidered to te a qity cradit kAccording to a survey, the mean oredit score is 7075 Acredt analyst wondered whether high income individuals incomes in excse of $100.000 per year) had higher credit scores He obtained a nandom sample of 35high-incame individaals and found the sample mean oredt score to be 725 7 with a standard deviation of 834. Conduct the appropriate test ta detemine igh income ndvia have higher ed sosat the a0 levelof signiticanceState the nul and ahomative typatheses(Type intagers or decimal Do not round)Identity the 1-tatistic(Round to two decimal places an needed)dentity the PvaluePvale Round to three decimal places an needed )Makea conclusion regardng the hypothesisthe null hypothesis. Theesuficient evidence to claim that the mean credit score of high income individuals is

The test hypotheses are: Null hypothesis: H0: μ = 707.5. Alternative hypothesis: H1: μ > 707.5

Answered: A credt score s uned by cede agencles…

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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A knewton.com Question The following data was calculated during a study on customer experience. Use the following information to find the test statistic and p-value at a 10% level of significance: • The claim is that the percent of companies that view customer experience as the most vital component of a growing business is different than 50%. Sample size = 50 companies • Sample proportion = 0.40 Use the table or the curve below to find the test statistic and p-value. For the curve select the appropriate test by dragging the blue point to a right-, left- or two-tailed diagram, then set the sliders. Use the purple slider to set the significance level. Use the black sliders to set the information from the study described above. z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 |-1.5 0.067 0.0660.064 0.063 0.062 0.061 0.059 o.058 0.057 0.056 -1.40.081 0.0790.078 0.076 0.075 0.074 0.072 0.071 0.069 0.068 |-1.3 0.097 0.095 0.093 0.092 0.090 0.089 0.087 0.085 0.084 0.082 -1.2 0.115…
z Final Examination Mather X Question 11 Find the median of 65 70 65 OD 67 O A 64 O C 62 OB 65
i need the answer quickly
Provided below is a simple data set for you to practice finding descriptive measures. For the data set, complete parts (a) through (c). 0, 1, 3, 5, 6, 0, 1, 3,5,6 a. Obtain the quartiles. Q₁ = ad Q₂ Q3 (Type integers or decimals. Do not round.) b. Determine the interquartile range. The interquartile range is (Type an integer or a decimal. Do not round.) 11 c. Find the five-number summary. 100000 (Type integers or decimals. Do not round. Use ascending order.)
answer question D based on the given informa
Titles Notation v sample mean а. Ро coefficient of determination b. N C. s2 d. V population standard deviation d. o sample standard deviation e. o V sample size f. s mean of a sampling distribution of sample means g. r h. a population variance i. l the proportion found in Ho j. p sample proportion k. x? correlation coefficient l. po population mean m. OF population size n. Ha o. p2 the mean found in the null hypothesis р. р v chi-squared 9. п
A study of seat belt users and nonusers yielded the randomly selected sample data summarized in the accompanying table. Use a 0.05 significance level to test the claim that the amount of smoking is independent of seat belt use. A plausible theory is that people who smoke are less concerned about their health and safety and are therefore less inclined to wear seat belts. Is this theory supported by the sample data? E Click the icon to view the data table. Determine the test statistic. *= (Round to three decimal places as needed.) Determine the P-value of the test statistic. P-Value (Round to three decimal places as needed.) Use a 0.05 significance level to test the claim that the amount of smoking is independent of seat belt use. A plausible theory is that people who smoke are less concerned about their health and safety and are therefore less inclined to wear seat belts. Is this theory supported by the sample data?
Which of the following must be entries from the original data set? the mode the range the third quartile the median the maximum
in Country A the population mean heint tor 3yer-od boys is 3inches epose aandom sample of 15 3yearid boys from Countryshewed sampie mean of 37.4 inches wia standad deviation of 3 inches. The boys were independently sampled Assume that heights are Nomaly datributed in the peion. Complete parts through ebelow A Determine whether he poplation mean tor Cauntry boys is synitanty aernthom he Country Amean. Useaitanoe vel of0s Which of the wng corecty states H d H 38 OR Find the test atatistic (Type an integer or decimal rounded to wo decimal placesa needed
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