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r-ruslan [8.4K]
3 years ago
14

A manufacturer of mosquito repellent claims that the average amount of time their repellent is effective is at least 3.5 hours.

A consumer group tests the claim using five randomly selected people. If the average time of effectiveness from the sample was 3.8 hours with a standard deviation of 0.76 hours, what is the critical value (CV test statistic (TS), and decision for this test? (Assume the underlying population is normal and use CI 0. 025.)

Mathematics
1 answer:
natta225 [31]3 years ago
5 0

Answer:

Hypothesis Testing:

Manufacturer claims that the average of time their mosquito repelllent is effective is at least 3.5hrs l.e μ ≥ 3.5hrs

Step-by-step explanation:

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