Name the hypothesis-testing procedure which would you use

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Which hypothesis-testing procedure would you use in the following situations?

a) The mean time an American family lives in a particular single-family dwelling is 11.8 years. A sample of 100 families in the Sycamore, OK area shows the mean time living in a single family residence is 12.7 years. Can we conclude that the time people live in Sycamore is significantly more than the national average?

b) A researcher would like to know if there is a significant difference in clothing purchases between full-time working women, part-time working women, and women who are homemakers.

c) Eighty percent of those who play the state lottery never win more than $100 in one play. A sample of 500 players was drawn and the mean winning was $125.

d) A drug manufacturing company conducted a survey of customers. The research question was as follows: Is there a significant relationship between packaging preference (size of the bottle purchased) and economic status? There were four packaging sizes: small, medium, large, and jumbo. Economic status was categorized as follows: lower, middle, and upper.

e) A company has 24 salespeople. The test must evaluate whether their product knowledge has improved or remained unchanged after a training program.

f) A computer company has a brand loyalty rating of 6.8 on a 7 point scale. Is this company's rating significantly different from the industry average of 6.4?

g) The manager of an office supply store wanted to determine which color folders she should discontinue based on low sales. The colors stocked were black, blue, red, green, and purple.

Reference no: EM13390295

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