Mathematics, 17.10.2020 14:01 Twitches
You are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on constructing a confidence interval; however, you are not sure how many citizens should be included in the sample. If you want your sample estimate to be within 4 years of the actual mean with a confidence level of 96%, how many citizens should be included in your sample? Assume that the standard deviation of the ages of all the citizens in this community is 25 years.
Answers: 3
Mathematics, 21.06.2019 15:10
The green family is a family of six people. they have used 4,885.78 gallons of water so far this month. they cannot exceed 9,750.05 gallons per month during drought season. write an inequality to show how much water just one member of the family can use for the remainder of the month, assuming each family member uses the same amount of water every month.
Answers: 1
Mathematics, 21.06.2019 17:00
Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l
Answers: 2
Mathematics, 21.06.2019 18:30
The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truckāā$80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?
Answers: 1
Mathematics, 21.06.2019 20:30
Acompany produces packets of soap powder labeled āgiant size 32 ounces.ā the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?
Answers: 3
You are interested in estimating the the mean age of the citizens living in your community. In order...
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