2. Suppose that the sample mean temperature of 31 hot air balloons (in flight) is 97° Celsius with a sample standard of s = 17° Celsius. Construct a 95% confidence interval for the average temperature for the population of hot air balloons while in the air.

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A: It is given that margin of error (E) is 0.03 and the confidence level is 0.90.

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Q: One measure of physical fitness is the amount of time it takes for the pulse rate to return to…

A: X=16.5n=20S=3.55CI will be X±tα2,n-1*Sn

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A: We have given that,  Margin of error (E) = 3% = 0.03, confidence interval = 95%  Then,  We will find…

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Q: Two men, A and B, who usually commute to work together decide to conduct an experiment to see…

A: Let d= X (route I travel time)−(route II travel time)d=(route I travel time)− Y (route II travel…

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Q: .

A: It is given that 800 out of 1,000 students use Facebook during class.The sample proportion is…

Q: If 73.3% of the 45 students in our class are under the age of 20, find the 95% confidence interval…

A: Given, p = 0.733 n = 45 1 - α = 0.95α = 0.05α2 = 0.025     To find, 95% confidence interval for the…

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A: In testing of a hypothesis, Confidence interval is an interval such that the probability of the…

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Q: Suppose we take a SRS of high school seniors and get a 95% confidence interval that 250 to 278…

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Q: 9. The Centers for Disease Control and Prevention reported a survey of randomly selected Americans…

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Q: The manager of a car company will select a random sample of its customers to create a 99% confidence…

A: From the provided information, Margin of error = 0.07 Confidence level = 99%

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Q: If a school district takes a random sample of 71 Math SAT scores and finds that the average is 460,…

A: Given : n = 71 Mean = 460 Standard deviation = 100 Confidence level = 99%

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Q: Suppose you survey a random sample from a large population. How large must your sample be if you…

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A: here given ,  margin of error  = 3% = 0.03  confidence level = 95%  n = 150  p^= 0.68

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Q: Suppose a drug for stomach discomfort is tested on 75 subjects, and the mean time for it to take…

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Q: Find the minimum sample size required to construct a 95% confidence interval estimate for the…

A: From the provided information, Margin of error (E) = 3.5% or 0.035 Confidence level = 95%

Q: 2. The population of SULU Hornbill ( one of the endangered bird species in the Philippines ) has a…

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Q: Suppose that for a random sample of 200 firms that revalued their fixed assets, the mean ratio of…

A: Given, n1=200 x-1=0.5170 S1=0.148 n2=400 x-2=0.489 S2=0.158 c=99%=0.99

Q: a. Suppose that a random sample of 41 state college students is asked to measure the length of their…

A: Since you have posted multiple sub-parts, we will solve the first three sub-parts for you. To get…