Question 8 A random sample of 48 female professional soccer players found an average height of 67 inches, with a standard deviation of 1.8 inches. Build a 88% Cl for the mean height of female professional soccer players. This will be a T-Interval since o is not known. So we need to compute the Degrees of Freedom: d. f. = n - 1 %3D a. d. f. = %3D To find the Margin of Error, E, we need to find the Critical Value, T.. To do this we use invT(C + (1- C)/2,d.f.), where in this problem C = 0.88. Round to three decimals. %3D b. T. = Next we find the Margin of Error: E = T. · Round to one decimal. Vn c. E = %3D Finally, we compute our Cl: - E<µ 1>

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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Question 8
A random sample of 48 female professional soccer players found an average height of 67 inches, with
a standard deviation of 1.8 inches. Build a 88% CI for the mean height of female professional soccer
players.
This will be a T-Interval since o is not known. So we need to compute the Degrees of Freedom:
d. f. = n-1
a. d. f. =
To find the Margin of Error, E, we need to find the Critical Value, T. To do this we use invT(C + (1-
C)/2,d.f.), where in this problem C = 0.88. Round to three decimals.
b. T. =
Round to one decimal.
Vn
Next we find the Margin of Error: E = T, .
c. E =
ctor
Finally, we compute our Cl: -E<µ<a + E
d.
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Transcribed Image Text:<. Question 8 A random sample of 48 female professional soccer players found an average height of 67 inches, with a standard deviation of 1.8 inches. Build a 88% CI for the mean height of female professional soccer players. This will be a T-Interval since o is not known. So we need to compute the Degrees of Freedom: d. f. = n-1 a. d. f. = To find the Margin of Error, E, we need to find the Critical Value, T. To do this we use invT(C + (1- C)/2,d.f.), where in this problem C = 0.88. Round to three decimals. b. T. = Round to one decimal. Vn Next we find the Margin of Error: E = T, . c. E = ctor Finally, we compute our Cl: -E<µ<a + E d. Submit Question APR 21 étv MacBook Air 000 O00 F4 F3 F5 F6 F7 F8 %23 2$ 4. 2 3. 8 5 #の
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