According to the 2010 Census, about 40.1% of Californians and 20.1% of all Ameri

Question

According to the 2010 Census, about 40.1% of Californians and 20.1% of all Americans speak a language other than English at home. Using your class as the sample, conduct a hypothesis test to determine if the percent of students at your school that speak a language other than English at home is different from 40.1%. STEP 1: Ho: p-0.401 Ha p #0.40 Significance Level 0.05 2 Distibuticn to use for the STEP test: N (0.401,0.0715) STEP 3 Test Statistic: indicate tor z and state its value: t or z (circle one) p-value

Explanation / Answer

From school data around 179 out of 655 students speak other than english at home
pcap = 179/655 = 0.2733

Test statistics, z = (0.2733 - 0.401)/0.0715 = -1.786013986

p-value = 0.0741

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