Acertain vehicle emission inspection station advertises that the wait time for customers is less than 9 minutes. a local resident is skeptical and collects a random sample of 49 wait times for customers at the testing station. she finds that the sample mean is 8.31 minutes, with a standard deviation of 3.9 minutes. does the sample evidence support the resident? s skepticism? use the alpha = 0.005 level of significance to test the advertised claim. what are the correct hypotheses for this test? what is the value of the test statistic? what is the p-value? p-value = [ ] use the alpha = 0.005 level of significance to test the advertised claim. since the p-value is [ ] than alpha, [ ] the null hypothesis. there [] sufficient evidence to conclude that the mean wait time is less than 9 minutes. in other words, the evidence [ ] the resident? s skepticism.

c: lkllmn.

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step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

step-by-step explanation:

if you meant, "on the way from (3, 2) to (3, 14):

x does not change; y increases by 12.

ensure that you have copied down this problem correctly.   .

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step-by-step explanation: