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Please answer the following questions below: (Notation: X~N(µ, σ), read as X has a normal distribution with mean µ and SD σ ) 2pt Q1: If X~(42,10) and is computed from a random sample of size n=81, what is the distribution of ?2pt Q2: If X~N(42,10) and is computed from a random sample of size n=16, what is the distribution of ?2pt Q3: When constructing a confidence interval for a mean, what are the two fundamentally different scenarios we would be working under?2pt Q4: Interpret the following probability statement into a...
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would you please tell me what you use in stat crunch to get the result please Question Help A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed below are the amounts of mercury (ppm) found in tuna sushi sample at different stores na major city Construct a 90% confidence interval estimate of the mean a mercury in tuna sushi? mount of mercury in the population Does it appear that there...
please do this probability problem and please explain thank you STAT 353 Homework 3 STAT 353:...

please do this probability problem and please explain thank you STAT 353 Homework 3 STAT 353: Homework 3 (Probability Distributions) Points Possible: 10 Problems: . A synthetic fabric is produced in continuous rolls of uniform width. The probability distribution of the number of imperfections per 10 meters is given in the table. 0 # imperfections probability 4 0.41 0.37 0.16 0.05 0.01 a) b) What is the expected number of imperfections in a 10 meter section? Find the standard deviation...

where should I go in stat crunch to get the result please? steps from stat crunch...

where should I go in stat crunch to get the result please? steps from stat crunch please Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two fast food restaurants. Construct a 95% confidence inte estimate of the mean drive-through service time for Restaurant X at dinner then do the same for Restaurant Y. Compare the results 囲Click the icon to view the data on drive-through service times Construct a 95% confidence interval...
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or a data set of chest sizes (distance around chest in inches) and weights (pounds) of ten anesthetized bears that were measured, the linear correlation coefficient is requals0.817. Use the table available below to find the critical values of r. Based on a comparison of the linear correlation coefficient r and the critical values, what do you conclude about a linear correlation? LOADING... Click the icon to view the table of critical values of r.The...
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Calculate the variance and the standard deviation. The Department of Transportation (DOT) fields thousands of complaints about airlines each year. The DOT categorizes and tallies complaints, and then periodically publishes rankings of airline performance. The following table presents the 2006 results for the 10 largest U.S. airlines.a. Which airline fielded the least amount of complaints? Which airline fielded the most? Calculate the range.b. Calculate the mean and the median number of complaints for this sample.c. Calculate the variance and the...

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In an effort to cut costs and improve profits, any US companies have been turning to outsourcing. In fact, according to Purchasing magazine, 54% of companies surveyed outsourced some part of their manufacturing process in the past two to three years. Suppose 555 of these companies are contacted.What is the probability percentage that 338 or more companies outsourced some part of their manufacturing process in the past two or three years? Round the percent to two decimal places. What is the probability percentage that...
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An institute reported that 65% of its members indicate that lack of ethical culture within financial firms has contributed most to the lack of trust in the financial industry. Suppose that you select a sample of 100 institute members. Complete parts (a) through (d) below.Keep at least three decimal places for the standard error in order to get an answer close to the solution in the system.a. What is the probability that the sample percentage indicating that lack of ethical...
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wants to stimate the standard deviation of the time takes a bus to travel between two steps in a chy . To develop an estimate for the standard deviation , the city has collected a random sample of the times required for 19 trips The sample standard deviation is 5.9minutes Based on these data what is the 90% conlidence interval estimate for the true population standard deviation les ses minutes Round to two decimal places as needed )

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How large a sample should be selected to provide a 95% confidence interval with a margin of error of 8? Assume that the population standard deviation is 50. Round your answer to next whole number.

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would you please tell me what you use in stat crunch to get the result please...

please do this probability problem and please explain thank you STAT 353 Homework 3 STAT 353:...

where should I go in stat crunch to get the result please? steps from stat crunch...

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