Claim: Fewer than 98% of adults have a cell phone. In a reputable poll of 1122 adults

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Claim: Fewer than 98% of adults have a cell phone. In a reputable poll of 1122 adults

Claim: Fewer than 98% of adults have a cell phone. In a reputable poll of 1122 adults, 89% said that they have a cell phone. Find the value of the test statistic.

The value of the test statistic is _______ (Round to two decimal places as needed.)

math Statistics-And-Probability

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Answer 1

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Answer #1

Fewer than 98% of adults have a cell phone. In a reputable poll of 1122 adults, 89% said that they have a cell phone.

So,

We claim "fewer than 98%, which indicates less than 95% or 0.95:

According to the null hypothesis, the population proportion is equal to the value mentioned in the claim.

The value of test-statistic is give by:

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Answer 2

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Claim: Fewer than 98% of adults have a cell phone. In a reputable poll of 1200...

Claim: Fewer than 93% of adults have a cell phone. In a reputable poll of 1053 adults

Claim: Fewer than 98% of adults have a cell phone. In a reputable poll of 1006...

Claim: Fewer than 95% of adults have a cell phone. In a reputable poll of 1226...

Claim: Fewer than 90% of adults have a cell phone. In a reputable poll of 1222...

Claim: Fewer than 94% of adults have a cell phone. In a reputable poll of 1179...

Claim: Fewer than 95% of adults have a cell phone. In a reputable poll of 1210...

Claim: Fewer than 97% of adults have a cell phone. In a reputable poll of 1235...

Claim: Fewer than 94% of adults have a cell phone. In a reputable poll of 1086...

Claim: Fewer than 97% of adults have a cell phone. In a reputable poll of 1093...

Claim: Fewer than 98% of adults have a cell phone. In a reputable poll of 1122 adults

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Claim: Fewer than 98% of adults have a cell phone. In a reputable poll of 1122 adults