19A telecommunications company wants to estimate the proportion of households that would purchase an additional telephone...
19A telecommunications company wants to estimate the proportion of households that would purchase an additional telephone line if it were made available at a substantially reduced installation cost. Data are collected from a random sample of 500 households. The results indicate that 160 of the households would purchase the additional telephone line at a reduced installation cost. Complete parts (a) and (b) below.
a. Construct a 99% confidence interval estimate for the population proportion of households that would purchase the additional telephone line.
__ is eqaul to or smaller than PIE is equal to or larger than __
b. How would the manager in charge of promotional programs concerning residential customers use the results in (a)?
A.
The manager can infer with 99% confidence that the population proportion of all households that would purchase an additional telephone line is somewhere in this interval.
B.
The manager can infer that 99% of households would purchase an additional telephone line.
C.
The manager can infer with 99% confidence that the proportion of households in the sample that would purchase an additional telephone line is somewhere in this interval.
D.
The manager can infer that the true population proportion of households that would purchase an additional telephone line is somewhere in this interval 99% of the time.
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19A telecommunications company wants to estimate the proportion
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b. How would the manager in charge of promotional
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STAT 206 Spring 2018 Ashwin Luther&3/18/18 3:30 AM ab Stati Homework: Homework8 - Sections 8.1-8.3 orses Score: 0 of 2 pts se Home 8.3.28-T 읊。 15 of 17 (8 complete) HW Score: 25%, 9 of 36 pts tions company wants to estimate the proportion of households that would purchase an aditional telephone line if it were made available at a -Question Help...
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