Mathematics, 28.04.2021 22:50 sierram298
Marta created an app, and she suspected that teens were more likely to use it than adults. She obtained separate random samples of teens and adults. Here are the results:
Use app? Teens Adults
Yes 545454 262626
No 666666 104104104
Total 120120120 130130130
She wants to use these results to construct a 95\%95%95, percent confidence interval to estimate the difference between the proportions of teens and adults that use her app (p_\text{T}-p_\text{A})(p
T
−p
A
)left parenthesis, p, start subscript, start text, T, end text, end subscript, minus, p, start subscript, start text, A, end text, end subscript, right parenthesis. Assume that all of the conditions for inference have been met.
Answers: 2
Mathematics, 21.06.2019 23:30, bhopainting
Simplify (8x2 − 1 + 2x3) − (7x3 − 3x2 + 1). −5x3 + 11x2 − 2 5x3 − 11x2 + 2 x3 + 2x2 + x3 x3 − 2x2 − x3
Answers: 1
Marta created an app, and she suspected that teens were more likely to use it than adults. She obtai...
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