Calculus and Above

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The mean incubation time for a type of fertilized egg kept
The mean incubation time for a type of fertilized egg kept at 100.4°F is 20 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 days. ​(a) Wha… read more
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When dragons on planet Pern lay eggs, the eggs are either
When dragons on planet Pern lay eggs, the eggs are either green or yellow. The biologists have observed over the years that 37% of the eggs are yellow, and the rest green. Next spring the lead scienti… read more
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The mean incubation time for a type of fertilized egg kept
The mean incubation time for a type of fertilized egg kept at a certain temperature is 18 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 … read more
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The mean incubation time for a type of fertilized egg kept
The mean incubation time for a type of fertilized egg kept at 100.5​°F is 19 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 days. ​(a) Wh… read more
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the mean incubation time for a type of fertilized egg kept
the mean incubation time for a type of fertilized egg kept at 100.8 degrees is 19 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 days. Wh… read more
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"For Guru2009 only" 1. A random sample of fifty-five 200-meter
"For Guru2009 only" 1. A random sample of fifty-five 200-meter swims has a mean time of 3.98 minutes and a standard deviation of 0.06 minutes. Construct a 905 confidence interval for the population me… read more
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I Calculated The Sample Mean For 12 Randomly Selected High
I calculated the sample mean for 12 randomly selected high school seniors' test scores. The mean was 908.3 and the sample standard deviation was 305.4. Can you construct a 99% confidence interval for … read more
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A researcher wishes to estimate, with 95% confidence, the proportion
A researcher wishes to estimate, with 95% confidence, the proportion of adults who have high-speed Internet access. Her estimate must be accurate within the 2% of the true proportion. a. Find the mini… read more
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Consider a normal population with µ = 25 and σ = 8.0. (A)
Consider a normal population with µ = 25 and σ = 8.0. (A) Calculate the standard score for a value x of 22. (B) Calculate the standard score for a randomly selected sample of 30 with = 22. (C) Explain… read more
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Please help with these 17 questions!! 1. Find the margin of
Please help with these 17 questions!! 1. Find the margin of error for the given values of c,s,and n. c=0.90,s=2.9,n=100 2. Construct the confidence interval for the population mean u. c=0.98,x=8.4,s=0… read more
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1) Consider a normal population with µ = 25 and σ = 8.0. (A)
1) Consider a normal population with µ = 25 and σ = 8.0. (A) Calculate the standard score for a value x of 22. (B) Calculate the standard score for a randomly selected sample of 30 with = 22. (C) Expl… read more
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1.) Suppose we wish to estimate the mean of the property tax
1.) Suppose we wish to estimate the mean of the property tax on houses in a certain area from a sample of 32 houses. The point estimate of the the population of houses in the area is 8688.44 Assuming … read more
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For questions needing a probability table, please use the table
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Pg.431 1)The mean of the sampling distribution of means is
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A worker randomly selects 16 packages from the mail. The sample
A worker randomly selects 16 packages from the mail. The sample has a mean weight of 13.5 lbs and a population standard deviation of 3.21 lbs. The weights of all packages are normally distributed. a. … read more
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16. In a survey of 630 males ages 18-64, 391 say they have
16. In a survey of 630 males ages 18-64, 391 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and com… read more
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Hello Greg, I have the following for today. I was careful
Hello Greg, I have the following for today. I was careful to copy the questions in their entirety this time. These need to be done by midnight, like usual. Thanks Greg:) 1. Consider a normal populatio… read more
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1.Assume that the weight loss for the first month of a diet
1.Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform distribution… read more
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Master's Degree
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