Thirty two percent of all americans drink bottled water more than once a week (national resources fefence council,December 4,2015). Suppose you ahve been hired by the natural resources defense council to investigate bottled water consumption in st. Paul. You paln to select  a sample of st. Paulities to estimate the proportion who drink bottled water more than once a week. Assume the population pro6od st. Paulities who drink bottles water more than once a week is 0.32, the same as the overall proportion of Americans whp drink bottled water more than once a week. Use z table A. Suppose you select a sample of 530 st. Paulities.  Show the sampling distribution of p to 4 decimal.  E(p) = .32 Op= ? B. Based upon a sample of 540 st. Paulities,  what is the probability that the sample proportion will br within 0.08 of the population proportion  to 4 decimal.  Probability =? C. Suppose you sel6a samole of 190 st. Paulities.  Show the sampling distribution of p to 4 decimals. E(p) = 0.32 Op= ? D. Based upon a smaller of only 190 st. Paulities,  what is the probability that the sample proportion will be within 0.08 of the population  proportion  to 4 decimal.  Probability =? E. As measured by the increase  in probability.  How do you gain in precision by taking the larger sample in parts a and b rather than the smaller sample in oarts c and d? Reduced by.        ? Have gain in precision by increasing the sample. Thank you, I  appreciate your help

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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Thirty two percent of all americans drink bottled water more than once a week (national resources fefence council,December 4,2015). Suppose you ahve been hired by the natural resources defense council to investigate bottled water consumption in st. Paul. You paln to select  a sample of st. Paulities to estimate the proportion who drink bottled water more than once a week. Assume the population pro6od st. Paulities who drink bottles water more than once a week is 0.32, the same as the overall proportion of Americans whp drink bottled water more than once a week. Use z table

A. Suppose you select a sample of 530 st. Paulities.  Show the sampling distribution of p to 4 decimal. 

E(p) = .32

Op= ?

B. Based upon a sample of 540 st. Paulities,  what is the probability that the sample proportion will br within 0.08 of the population proportion  to 4 decimal. 

Probability =?

C. Suppose you sel6a samole of 190 st. Paulities.  Show the sampling distribution of p to 4 decimals.

E(p) = 0.32

Op= ?

D. Based upon a smaller of only 190 st. Paulities,  what is the probability that the sample proportion will be within 0.08 of the population  proportion  to 4 decimal. 

Probability =?

E. As measured by the increase  in probability.  How do you gain in precision by taking the larger sample in parts a and b rather than the smaller sample in oarts c and d?

Reduced by.        ?

Have gain in precision by increasing the sample.

Thank you, I  appreciate your help

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