A report about how American college students manage their finances includes data from a survey of college students. Each person in a representative sample of 793 college students was asked if they had one or more credit cards and if so, whether they paid their balance in full each month. There were 500 who paid in full there convincing evidence that college students who pay their credit card balance in full each month have a mean balance that is lower than $907, the value reported for all college students with credit cards? Carry out a hypothesis test using a significance level of 0.01. each month. For this sample e of 500 students, the sample mean credit card balance was reported to be $825. The sample standard deviation of the credit card balances for these 500 students was not reported, but for purposes of this exercise, suppose that it was $195. Is A USE SALT State the appropriate null and alternative hypotheses. O Hạ: H< 907 H:> 907 O H:= 907 H 907 O Hạ: - 907 H<907 O Hai M> 907 H:< 907 OH:- 907 H> 907 Find the test statistic and P-value. (Use technology to calculate the P-value. Round your test statistic to one decimal place and your P-value to three decimal places.) P-value State the conclusion in the problem context. O We reject Ho. We have convincing evidence that college students who pay their credit card balance in full each month have a mean balance that is lower than $907. O we fail to reject Hg. We have convincing evidence that college students who pay their credit card balance in full each month have a mean balance that is lower than $907. O we fail to reject Ho We do not have convincing evidence that college students who pay their credit card balance in full each month have a mean balance that is lower than $907. O We reject Ho, We do not have convincing evidence that college students who pay their credit card balance in full each month have a mean balance that is lower than $907. You may need to use the appropriate table in the appendix to answer this question.
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
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