1. Conduct a hypothesis test for the following scenario. SHOW ALL YOUR WORK THE WAY WE DID IN CLASS! Construction zones on highways have a much lower speed limit. To see if drivers obey these lower speed limits, a police officer uses a radar gun to measure the speed in miles per hour of a random sample of 10 drivers in a 30 mph speed zone. Here are the data: 26 28 32 21 27 31 29 22 25 34 Is there convincing evidence at the α = .05 level that the average speed is below the speed limit?

Answers

Answer 1

Answer: First you want to put the numbers in order 21,22,25,26,27,28,29,31,32,35

Then separate the ones above the limit from below the limit

Above-31,32,35 (a total of 3)

Below-21,22,25,26,27,28,29 (a total of 7)

.5 is equal is 1/2 and over half are below the speed limit

So the average speed is most likely below the speed level

P.S. the average speed is 24.4

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You can Drive your car 21.75 miles with 1 gallon of gasoline how many miles can you drive with 13.2 miles of gasoline

Answers

21.75miles=1gallon
xmiles=13.2gallons
easy, multiply the first equaiton by 13.2 to get the galons to match

21.75*13.2=287.1 miles=13.2 gallons
answer is 287.1 miles

You can drive 287.1 miles with 13.2 miles of gasoline

A new truck sells for $28,000depreciates (decreases in value) 13% each year. What is the Decay Factor, b?

Answers

not sure
te rate is r
for decay, it is
A=P(1-r)^t
r=rate
P=present amount
dunno what b is
but I guess
A=28000(1-0.13)^t
A=28000(0.87)^t
I would guess the decay factor would be 0.87

your equation for the prblem is a=p(1-r)^t

when you put $28,000 as A and make 13% into 0.13 and solve your B comes to 0.87. hope this was helpful :)

The length of a rectangle is 7m more than its width. The perimeter of the rectangle is 60m. What are the dimensions?