In a random sample of 7 cell phones, the mean full retail price was $537.40 and the standard deviation was $188.00. Further research suggests that the population mean is $429.39. Does the t-value for the original sample fall between - to 95 and to 95? Assume that the population of full retail prices for cell phones is normally distributed. The t-value of t = V fall between - to.95 and to 95 because to.95 =: (Round to two decimal places as needed.)
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.
![In a random sample of 7 cell phones, the mean full retail price was $537.40, and the standard deviation was $188.00. Further research suggests that the population mean is $429.39. Does the t-value for the original sample fall between \(-t_{0.95}\) and \(t_{0.95}\)? Assume that the population of full retail prices for cell phones is normally distributed.
The t-value of \(t =\) [input box] [dropdown box: choose < or >] fall between \(-t_{0.95}\) and \(t_{0.95}\) because \(t_{0.95} =\) [input box].
(Round to two decimal places as needed.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa332979b-3709-48a2-942a-205e2ae2d053%2Fe9966d1a-131d-4ddd-81d8-634035ac38b0%2Fhw6gicq_processed.png&w=3840&q=75)
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