Mathematics, 28.11.2019 06:31 lizzyhearts
(1 point) the effectiveness of a new bug repellent is tested on 18 subjects for a 10 hour period. based on the number and location of the bug bites, the percentage of exposed surface area protected from bites was calculated for each of the subjects. assume the population is normally distributed. the results were as follows: x¯¯¯=92 %, s=8% the new repellent is considered effective if it provides a percent repellency of more than 89%. using α=0.025, construct a hypothesis test with null hypothesis μ≤0.89 and alternative hypothesis μ> 0.89 to determine whether the mean repellency of the new bug repellent is greater than 89% by computing the following: (a)the degree of freedom is df= .
Answers: 3
Mathematics, 21.06.2019 21:30, quinteroalex2001
You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?
Answers: 2
(1 point) the effectiveness of a new bug repellent is tested on 18 subjects for a 10 hour period. ba...
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