A marketing researcher is hired by a corporation to conduct a study and estimate the population mean for the attribute of interest using a 95% confidence interval with a maximum error of 5. It will cost the researcher $5 per sample to conduct the study and the researcher has been given a budget of $500 to conduct the study. Based on prior studies the researcher can estimate the standard deviation using, σ≈15�≈15.   Step 2 of 3 :   How much will it cost the researcher to conduct this study?

Q: A data set has a mean of 300 and a standard deviation of 40. What value would have a z-score of z =…

A: z-score of z = - 2 is -7.55 Reason: z-score of z = - 2=-2-meanstandard deviation=-2-30040=-7.55

Q: When we compute a standard deviation, we are trying to get a measure of the average distance of…

A: Let us understand better by assuming X1, X2, ...., Xn be n data points. Then,…

Q: What is F, the daily average temperature in degrees Fahrenheit in Raleigh during this period? b)…

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Q: Annabelle earned a score of 410 on Exam A that had a mean of 450 and a standard deviation of 40. She…

A: Here we need to find the score for exam B such that it is equivalent to the score of exam A. Inorder…

Q: The means and standard deviations are given in the data table. With a correlation of 0.826,…

A: Given: Correlation coefficient r = 0.826 Mean of Dose X = 1.651 The standard deviation of Dose SX =…

Q: Your instructor tells you that past average scores for the final exam are 75%. But this semester he…

A: Find the distribution that has to be used to perform hypothesis testing in the given situation:The…

Q: Suppose a friend tells you that the average length of trout caught in pyramid lake is u=19 inches.…

A: Given information Hypothesized mean = 19 Sample Standard deviation = 3.5 Sample mean = 18.6 Sample…

Q: Claire earned a score of 96 on Exam A that had a mean of 100 and a standard deviation of 10. She is…

A: Here Claire scores 96 for exam A. We need to find the mark equivalent to exam A for exam B. Given…

Q: A simple random sample of 64 observations was taken from a large population.  The sample mean and…

A: Solution-: Given: n=64,x¯=320,s=120 We want to find the standard error of the sample mean=?

Q: The scores on a test are normally distributed with a mean of 150 and a standard deviation of 30.…

A: The normal distribution:A continuous random variable X is said to follow normal distribution if the…

Q: The scores on a psychology test were normally distributed with a mean of 65 and a standard deviation…

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Q: A study compared the weight loss of people on a low-fat diet versus people on a low-carb diet. In a…

A: Given: First sample: Sample size, n1 =100 Sample mean, x1=7.6 Sample standard deviation, s1 = 3.2…

Q: ora earned a score of 14 on Exam A that had a mean of 20 and a standard deviation of 4. She is about…

A: Nora earned a 14 on Exam A score that had a mean of 20 and a standard deviation of 4. She is about…

Q: A data set has a mean of x=443 and a standard deviation of 18 . Find the z-score of x =429 .

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Q: A simple random sample of 36 observations was taken from a large population. The sample mean and the…

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Q: P(30 <x<60) = 0.6293 (Round to four decimal places as needed.) d Find the number of women in the…

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Q: What is the standard error of the sample mean if your sample size is 36? Give your answer to 2…

A: It is given that  Population standard deviation, σ = 4.8 Sample mean, x̅ = 25.9 Sample standard…

Q: A population of scores has a mean of 56. In this population, a raw score of 40 corresponds to a z…

A: Given Information: A population of scores has a mean of 56. μ=56 Raw score X = 40 corresponds to a z…