nothing is working for this... . help please 07.35 Check MWork bottled water con

Question

nothing is working for this...
. help please

07.35 Check MWork bottled water consumption in St. Paul. You plan to select a sample of St. Paulite a. Suppose you select a sample of 540 St.Paulites. Show the sampling distribution of p (to 4 decimals) E(F) 0.360 s to estimate the proportion who drink bottled water more than once a week. A ssume the population proportion of St. Paulites who drink bottled water more same as the overall proportion of americans who drink bottled water more than once a week. Use 2 table b. Based upon a sample of 540 St. Paulites what is the probability that the sample proportion wil' be within 0.04 of the population proportion to 4 decimals F5 0.0014 probability 0.9065 * e. Az 301 PM

Explanation / Answer

7.35) sample proportion phat =.36

std error =(p(1-p)/n)1/2 =0.0207

b) P(-0.04<X-mean<0.04) =P((-0.04/0.0207<Z<0.04/0.0207)=P(-1.9365<Z<1.9365)=.9736-.0264 =0.9472

(please try 0.9467 if above does not work due to rounding)

c)

E(phat) =0.36

stde error =0.0339

d)probability = P(-0.04<X-mean<0.04) =P((-0.04/0.0339<Z<0.04/0.0339)=P(-1.1785<Z<1.1785)=.8807-.1193

=0.7614

( please try 0.7620 if above does not work)

e)

reduced by 0.1858

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