# In a random sample of 6 cell phones, the mean full retail price was \$525.10 and the standard deviation was \$177.00. Further research suggests that the populationmean is \$432.82. Does the t-value for the original sample fall between -to gg and to gg? Assume that the population of full retail prices for cell phones is normallydistributedThe t-value of tfall between to g9 and to gg because to g9 =.990.99(Round to two decimal placess as needed.)

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I'm not sure what t-value is in order so solve for it. help_outlineImage TranscriptioncloseIn a random sample of 6 cell phones, the mean full retail price was \$525.10 and the standard deviation was \$177.00. Further research suggests that the population mean is \$432.82. Does the t-value for the original sample fall between -to gg and to gg? Assume that the population of full retail prices for cell phones is normally distributed The t-value of t fall between to g9 and to gg because to g9 = .99 0.99 (Round to two decimal placess as needed.) fullscreen
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Step 1

The t-distribution is used, because the population standard deviation is unknown and the sample standard deviation is being used as a substitute.

Calculation:

Here, n = 6;  = 525.10; s = 177.00.

There... help_outlineImage TranscriptioncloseTest statistic 525 432.82 = 1.2756 t 177 Vn -to.99, 5-3.365 (From Excel T.INV (0.01,5) -3.365) to.99, 5 3.365 (From Excel T.INV (0.99,5) 3.365) fullscreen

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### Hypothesis Testing 