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6+4:2*10
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<h2>26</h2> ✮ ∙ ✳︎ ★
✴︎ ✴︎ ✴︎✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎ ✴︎
Answer:
98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day
(0.3672 , 0.7328)
Step-by-step explanation:
<u><em>Explanation:</em></u>-
Given Random sample size n =40
Sample proportion
98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day
The Z-value Z₀.₉₈ = Z₀.₀₂ = 2.326
98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day
( 0.55 - 0.1828 , 0.55 + 0.1828)
(0.3672 , 0.7328)