Mathematics, 26.06.2020 15:01 fantasticratz2
A safety officer wants to prove that μ = the average speed of cars driven by a school is less than 25 mph. Suppose that a random sample of 14 cars shows an average speed of 24.0 mph, with a sample standard deviation of 2.2 mph. Assume that the speeds of cars are normally distributed. What is the p-value?
Answers: 2
Mathematics, 21.06.2019 13:00
Liesl grew 7/12 of a foot in one year. her little sister grew 1/3 of a foot during that same year. how much more did liesl grow than her little sister did
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Mathematics, 21.06.2019 19:00
You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?
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Mathematics, 21.06.2019 21:00
Choose the equation below that represents the line that passes through the point (2, 4) and has a slope of 3. a) y − 4 = 3(x − 2) b) y − 2 = 3(x − 4) c) y + 4 = 3(x + 2) d) y + 2 = 3(x + 4)
Answers: 1
A safety officer wants to prove that μ = the average speed of cars driven by a school is less than 2...
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