State the null and alternative hypotheses for each of the following situations: a) A guideline for a telemarketing firm states the mean time for completed calls should not exceed four (4) minutes. Each month the firm's owner selects a random sample of call logs to determine whether the call-time goal is being met. b) General Hook Corporation distributes Peter Pan Cereal in boxes with a stated weight of 18 ounces. To determine whether the filling machine should be adjusted, the quality control manager at General Hook selects and weighs a random sample of boxes one day each week. c) A manufacturer of trash bags claims its trash bag can hold or support at least 50 pounds, on average. A random sample of trash bags is selected and tested. d) A member of the US Senate claims undergraduate students graduate owing more than $15,000 on student loans, on average. You select a random sample of recent graduates to test the Senator's claim.
State the null and alternative hypotheses for each of the following situations: a) A guideline for a telemarketing firm states the mean time for completed calls should not exceed four (4) minutes. Each month the firm's owner selects a random sample of call logs to determine whether the call-time goal is being met. b) General Hook Corporation distributes Peter Pan Cereal in boxes with a stated weight of 18 ounces. To determine whether the filling machine should be adjusted, the quality control manager at General Hook selects and weighs a random sample of boxes one day each week. c) A manufacturer of trash bags claims its trash bag can hold or support at least 50 pounds, on average. A random sample of trash bags is selected and tested. d) A member of the US Senate claims undergraduate students graduate owing more than $15,000 on student loans, on average. You select a random sample of recent graduates to test the Senator's claim.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Transcribed Image Text:State the null and alternative hypotheses for each of the following situations:
a) A guideline for a telemarketing firm states the mean time for completed calls should
not exceed four (4) minutes. Each month the firm's owner selects a random sample
of call logs to determine whether the call-time goal is being met.
b) General Hook Corporation distributes Peter Pan Cereal in boxes with a stated weight
of 18 ounces. To determine whether the filling machine should be adjusted, the
quality control manager at General Hook selects and weighs a random sample of
boxes one day each week.
c) A manufacturer of trash bags claims its trash bag can hold or support at least 50
pounds, on average. A random sample of trash bags is selected and tested.
d) A member of the US Senate claims undergraduate students graduate owing more
than $15,000 on student loans, on average. You select a random sample of recent
graduates to test the Senator's claim.
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