JABBAAREVANSSTA201OL12WA6

# JABBAAREVANSSTA201OL12WA6 - WA6 8.1 334 44 8.4 7.59 Jabbaar...

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WA6 Jabbaar Evans STAT201-OL12 8.1 8.4 334 7.59 The sample mean will not be exactly the same as population sample mean. 44 8.6 standard deviation = 0.3618 95.44% confidence interval 7.59-2x0.3618= 6.8664 7.59+2x0.3618= 8.3136 8.8 We estimate the mean budget for such home improvement jobs is 2885 Satandard deviation is 201 We see that 95.44% fo all samples of 45 home improvement jobs have mean prices withing 1350 of u 8.2 8.24 You can say that 99% confidence that recent applicatints are not represented of the population of good typists 8.26 z score 1.96 Confidence interval of population mean = 24.02, 25.98 8.32 947-1.96*188/18 947+1.96*188/18 860 1034 95% confidance the mean calcium intake of all adults with income below the poverty level between 860 and 103 8.38 947-1.645*188/18 947+1.645*188/18 874 1020 8.3 8.52 a. Increasing would give you better precision b. you would get a smaller sampling error 8.54 2*0.047= 0.094 confidence intervel of population mean 0.205-0.094= 0.111 0.205+0.094=

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## This note was uploaded on 02/25/2011 for the course ACCT 201 taught by Professor Evans during the Spring '11 term at Thomas Edison State.

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JABBAAREVANSSTA201OL12WA6 - WA6 8.1 334 44 8.4 7.59 Jabbaar...

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