Show work please You want to create a 95% confidence interval with a margin of error of no more than 0.05 for a population proportion.  The historical data indicate that the population has remained constant at about 0.55.  What is the minimum size random sample you need to construct this interval?   223 378 381. 324 380 If the sample size for the computation of a 1-population confidence interval were tripled, how would this change the confidence interval size?   Triples the interval size Divides the interval size by 3. Mutliplies the interval size by 1.732. Divides the interval size by 1.732 Multiples the interval size by 9.

# E DII C A previous study gave (0.11, 0.23) as a confidence interval for p. Find the minimum sample size required to ensure that your estimate (p) will be within 0.01 of p with 99% confidence. IMPORTANT: Use a critical value that you found with your calculator (not from a table), and round it to 3 places after the decimal point before you plug it into a formula and perform your calculations. Do not round-off any other intermediate results. n = F3 Submit Question $ 4 R F F4 V % 5 T J G F5 6 B Y H F6 & 7 X U N F7 - * PrtScn 8 F8 M K Home 9 F9 O End L F10 P Pg Alt

A new fertilizer was applied to the soil of 290 bean plants., 30% showed increased growth.  Find the margin of error and 95% confidence interval for the precentage of all bean plants which show increased growth after application of the fertilizer.  Round to 2 decimals 1.  Margin of Error (as a percentage) 2.  Confidence Interval ____________% to _____________%.

If n=15n=15, ¯xx¯=43, and s=20s=20, construct a confidence interval at a 90% confidence level. Give your answers to one decimal place.  _____< μ < _____ Technology