It took an average of 4.4 years for a grove of 57 orange trees to bear fruit. Assume the standard deviation of the population is o = 3.7 years. Construct a 96% confidence interval. Round your answers to two decimal places. The lower limit of the confidence interval is and the upper limit is

Q: If n=30, (x-bar)=38, and s=8, construct a confidence interval at a 90% confidence level. Assume the…

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Q: If n=14, (x-bar)=37, and s=7, construct a confidence interval at a 98% confidence level. Assume the…

A: Given,n=14x¯=37s=7degrees of freedom(df)=n-1df=14-1=13α=1-0.98=0.02α2=0.01t0.01(13)=2.650     (from…

Q: If n=31, (x-bar)=49, and s=3, construct a confidence interval at a 80% confidence level. Assume the…

A: Given, Sample size = 31 Sample mean = 49 Sample standard deviation = 3   Since the population…

Q: The number of television sets coming off a production line each day is known to have a standard…

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Q: If n=13, (x-bar)=48, and s=12, construct a confidence interval at a 95% confidence level. Assume the…

A: Mean = 48Standard deviation = 12Sample size = 13

Q: If n=12, (x-bar)=33, and s=16, construct a confidence interval at a 80% confidence level. Assume the…

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Q: The population mean of a set of data is unknown. The sample mean is 44, and the error bound for the…

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Q: Find the confidence interval for population correlation coefficient if  r = 0.2 and n= 625.

A: The provided information are: Sample correlation coefficient (r) = 0.2 Sample size (n) = 625 No…

Q: A study found the temperature of 125 randomly selected healthy adults averaged 98.25 F with a…

A: It is given that sample mean is 98.25 and standard deviation is 0.733.

Q: Find the 95% confidence interval for the standard deviation of the ages of residents in a senior…

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Q: You sample 40 dogs and find a sample mean weight of 60 lbs with a sample standard deviation of 5.…

A: From the provided information, Sample size (n) = 40 Sample mean (x̅) = 60 lbs Sample standard…

Q: If n=22, ē(x-bar)=42, and s=19, construct a confidence interval at a 80% confidence level. Assume…

A: Solution: From the given information, n=22, x-bar=42 and s=19.

Q: If n = 18, = 46, and s = 16, construct a confidence interval at a 90% confidence level. Assume the…

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Q: If n 28, = 37, and s = 6.2, construct a confidence interval at a 97% confidence level. Assume the…

A: Solution: The following information is given to us: s=6.2 n =28 A 97% confidence interval is…

Q: A survey of 30 adults found that the mean age of a person’s primary vehicle is 5.6 years. Assuming…

A: A confidence interval is a type of estimate computed from the statistics of the observed data. This…

Q: Find a 90% confidence interval for the population mean age of the Smurfs if a sample of 52 smurfs…

A: It is given that, There is a random sample of size 52 and has a mean of 49.7 and the standard…

Q: If n=28, (x-bar)=45, and s-8, construct a confidence interval at a 99% confidence level. Assume the…

A: Given that.  Sample size n =28 Sample mean=45 Standard deviation =8

Q: An analyst constructed a confidence interval for the amount of product yielded in a batch run by…

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Q: f n=19, sample mean=50, and s =8, construct a confidence interval at a 99% confidence level. Assume…

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Q: If n=30, (x-bar)=45, and s=13, construct a confidence interval at a 95% confidence level. Assume the…

A: We have given that,  Sample mean (x̄) = 45, sample size (n) = 30 and standard deviation (s) = 13…

Q: If n=21, (x-bar)=37, and s=3, construct a confidence interval at a 90% confidence level. Assume the…

A: Given Information: Sample size n=21 Sample mean x¯=37 Sample standard deviation s=3 Confidence level…

Q: If n = 11,(x -bar)= 31, and s = 19, construct a confidence interval at a 99% confidence level.…

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Q: If n=17, (x-bar)=48, and s=2, construct a confidence interval at a 80% confidence level. Assume the…

A: We have to construct confidence interval for mean of single normal population.

Q: Find z given a 94% confidence interval and a= 0.06. z = ?

A: Confidence level=94%

Q: A survey of 30 adults found that the mean age of a person's vehicle is 3.6 years. Assuming the…

A: We have given that,  Sample mean (x̄) = 3.6, population standard deviation (σ) = 2 and sample size…

Q: The number of television sets coming off a production line each day is known to have a standard…

A: Given: Standard deviation σ = 130.5 Confidence interval for the population mean = 735.5 to 820.5…

Q: From a sample of 500 Pepperdine students, 205 said they commuted to school. Find the 95% confidence…

A: We have given that,  Favorable cases (X) = 205 and sample size     (n) = 500  Then,  We will find…