Mathematics, 25.12.2019 05:31, loanyst99111
The food marketing institute shows that 17% of households spend more than $100 per week on groceries. assume the population proportion is p = .17 and a simple random sample of 800 households will be selected from the population.
a. calculate σ(p), the standard error of the proportion of households spending more than $100 per week on groceries (to 4 decimals).
b. what is the probability that the sample proportion will be within +/- .02 of the population proportion (to 4 decimals)?
c. what is the probability that the sample proportion will be within +/- .02 of the population proportion for a sample of 1600 households (to 4 decimals)?
show all steps and formulas
Answers: 3
Mathematics, 21.06.2019 18:30, rachel2735
Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much
Answers: 1
Mathematics, 21.06.2019 19:30, bakaoffire
Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?
Answers: 1
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