Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. Click the icon to view a t distribution table. a. What is the number of degrees of freedom that should be used for finding the critical value tx/2? df= (Type a whole number.) TInterval (13.046,22.15) x= 17.598 Sx= 16.01712719 n = 50

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b. Find the critical value t a/2 corresponding to a 95% confidence interval

Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below.

[TInterval]
(13.046, 22.15)
x̄ = 17.598
Sx = 16.01712719
n = 50

---

**a. What is the number of degrees of freedom that should be used for finding the critical value \( t_{\alpha/2} \)?**

df = [ ]
(Type a whole number.)
Transcribed Image Text:Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. [TInterval] (13.046, 22.15) x̄ = 17.598 Sx = 16.01712719 n = 50 --- **a. What is the number of degrees of freedom that should be used for finding the critical value \( t_{\alpha/2} \)?** df = [ ] (Type a whole number.)
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