According to a recent article about individuals who have credit cards, the mean number of cards per person with credit cards is 4. To test this result a random survey of 60 individuals who have credit cards was conducted. The survey only includes the number of credit cards per participant. The results of the survey are attached below.(a) What is the variable of interest in this study? Is it qualitative or quantitative?(b) Do the results of the survey imply that the mean number of cards per individual is less than 4?Use the a = 0.05level of significance.Click the icon to view the data from the survey. According to a recent article about individuals who have credit cards, the mean number of cards per person with credit cards is 4. To test this result a random survey of 60 individualswho have credit cards was conducted. The survey only includes the number of credit cards per participant. The results of the survey are attached below.(a) What is the variable of interest in this study? Is it qualitative or quantitative?(b) Do the results of the survey imply that the mean number of cards per individual is less than 4? Use the α = 0.05 level of significance.Click the icon to view the data from the survey.(b) Do the results of the survey imply that the mean nunHo P = 4H₁: P<4(Type integers or decimals.)Determine the t-statistic.to = (Round to two decimal places as needed.)Determine the P-value.P-value= (Round to three decimal places as neededMalaking neding the bathaninOi99+"Number of Credit Cards Per Participant4144243443434932Print42444322179443842Done32315442283423L- Xhative hypotheses.Rain off and onNext6:44 PM11/29/2022 According to a recent article about individuals who have credit cards, the mean number of cards per person withcredit cards is 4. To test this result a random survey of 60 individuals who have credit cards was conducted. Thesurvey only includes the number of credit cards per participant. The results of the survey are attached below.(a) What is the variable of interest in this study? Is it qualitative or quantitative?(b) Do the results of the survey imply that the mean number of cards per individual is less than 4? Use the α = 0.05level of significance.Click the icon to view the data from the survey.Determine the t-statistic.to = (Round to two decimal places as needed.)Determine the P-value.P-value= (Round to three decimal places as needed.)Make a conclusion regarding the hypothesis.The P-value is greater than the level of significance Do not reject the null hypothesis. Thereevidence to claim that the mean number of credit cards is less than4O Et(99+His sufficientNext

Here, the significance level, α=0.05 The sample mean and sample standard deviation are computed as…

Answered: According to a recent article about…

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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According to a recent article about individuals who have credit cards, the mean number of cards per person with credit cards is 4. To test this result a random survey of 60 individuals who have credit cards was conducted. The survey only includes the number of credit cards per participant. The results of the survey are attached below. (a) What is the variable of interest in this study? Is it qualitative or quantitative? (b) Do the results of the survey imply that the mean number of cards per individual is less than 4?Use the a = 0.05 level of significance. Click the icon to view the data from the survey.

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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