/bb.csueastbay.edu/bbcswebdav)p-3693 6. ldentify which type of sampling is used

Question

/bb.csueastbay.edu/bbcswebdav)p-3693 6. ldentify which type of sampling is used in below statements: systematic, convenience, stratified, or cluster. a. A radio programme asks its listeners to call in their opinion regarding the desirability of of programs b. To estimate the percentage of defects in a recent manufacturing sink, a quality manager at Company A selects 2th sink that comes off the assembly line starting with the sixth until she obtains a sample of 19 sinks c. To determine her blood sugar level, Alin divides up her day into three parts: morning, afternoon, and evening. She measures her blod level at two randomly selected times during each part of the da d. A man experienced a tax audit. The tax department claimed that the man was audited because everyone in five randomly selected districts was being audited. 7. Ada and Ozan are fishing on the coast. The man length of a bluefish is 261 millimeters with a standard deviation of 45 mm. For pompano, the mean is 156 mm with a standard deviation of 24 mm. Ozan caught a bluefish that was 286 mm long, and Ada cau relative to fish of the same species? ght a pompano that was 181 mm long. Who caught the longer fish,

Explanation / Answer

a) this is convenience sampling

b) systematic as every nth item is sampled

c) stratified

d) cluster

7)

as we know z score =(X-mean)/std deviation

for Ozen caught Bluefish ; z score =(286-261)/45=0.5556

for Ada caught fish ; z score =(181-156)/24=1.0417

as z score for Ada fish is hihger ; therefore Ada caught longer fish relative to fish of same species

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