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After the success of the company’s first two months, Santana Rey continues to operate Business Solutions. The November 30, 2019, unadjusted trial balance of Business Solutions (reflecting its transactions for October and November of 2019) follows.

Hi, I really need help with the remaining questions, I had answers before but I Just couldn't understand what I did wrong! Part 14.pngPart 12.pngPart 13.pngPart 11.pngPart 10.pngPart 9.pngPart 8.pngPart 7.pngPart 6.pngPart 5.pngPart 4.pngPart 3.pngPart 2.pngPart 1.png
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3.8 A sampling experiment. Let us illustrate sampling variability in a small sample from a small population. Ten of the 25 club members listed below are female. Their names are marked with asterisks in the list. The club chooses 5 members at random to receive free trips to the national convention.(a) Label the sampling frame starting with ‘01’. Draw one SRS of 5 starting at line 117 of Table A. Then draw 19 SRSs of size 5, using a different...
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The following data are the monthly salaries y and the grade point averages x for students who obtained a bachelor's degree in business administration.GPAMonthly Salary ($)2.63,5003.43,9003.64,3003.23,7003.54,2002.92,300The estimated regression equation for these data is = -544.6 + 1,310.8x and MSE =340,878. Use Table 1 of Appendix B.a. Develop a point estimate of the starting salary for a student with a GPA of 3.0 (to 1 decimal).$b. Develop a 95% confidence interval for the mean starting salary for all students with a 3.0 GPA (to 2 decimals).$ ( , )c. Develop a...

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Given are five observations for two variables, x and y.x i12345y i3751213Round your answers to two decimal places. Use Table 1 of Appendix B.a. Using the following equation:Estimate the standard deviation of ŷ* when x = 3.b. Using the following expression:Develop a 95% confidence interval for the expected value of y when x = 3. to c. Using the following equation:Estimate the standard deviation of an individual value of y when x = 3.d. Using the following expression:Develop a 95% prediction interval for y when x = 3. If your answer is negative, enter minus (-) sign.
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There are multiple ways to refer to or describe a variance or a standard deviation of either a population or a sample. Likewise, each measure has multiple appropriate equations or symbols. The first table consists of alternative ways of referring to each of these measures. The second table consists of equations or symbols for each of these measures.Alternative Descriptiona. Square root of the population varianceb. Mean squared deviation from the sample meanc. Average squared distance from the population meand. Standard...
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A researcher for Agri-Giant Corporation wants to study how many pounds of tomatoes are typically picked by a manual labourer in an 8-hour day. The Corporation will consider using picking machines if the labourers cannot pick at least 240 pounds, on average. The researcher randomly sampled 100 farm labourers, found out how many pounds of tomatoes each picked and calculated the sample mean and standard deviation. Part a)Which of the following is/are parameter(s) of interest with respect to the new...

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Human Resource Consulting (HRC) is surveying a sample of 66 firms in order to study health care costs for a client. One of the items being tracked is the annualdeductible that employees must pay. The state Bureau of Labor reports the mean of this distribution is $498 with a standard deviation of $85.(a) Compute the standard error of the sample mean for HRC. (Round your answer to 2 decimal places.)Standard error(b) What is the chance HRC finds a sample mean...
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Find the minimum sample size n needed to estimate μ for the given values of c=90, σ=9.6, and E=2.Assume that a preliminary sample has at least 30 members.
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A recent article in BusinessWeek listed the “Best Small Companies.” We are interested in the current results of the companies’ sales and earnings. A random sample of 12 companies was selected and the sales and earnings, in millions of dollars, are reported below.1. CompanySales($ millions)Earnings ($ millions)CompanySales($ millions)Earnings ($ millions)Papa John’s Internationa l$89.2$4.9Checkmat e Electronic s$17.5$ 2.6Applied Innovation18.64.4Royal Grip11.91.7Integracare18.21.3M-Wave19.63.5Wall Data71.78.0Serving-N- Slide51.28.2

Psyc stats

1. Using the unit normal table, find the proportion under the curve that lies above (in other words to the right) of the following z-scores. (Remember you may need to adjust your strategy for negative z scores). a. z = 2.00b. z = -1.5c. z = 02. Using the unit normal table, find the proportion that lies between a z = -1.5 and a z = 1.5. 3. The final exam in Stats has a mean of 70 and a variance of 25 a. What is the percentile rank for an exam score of 80? b. What...

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After the success of the company’s first two months, Santana Rey continues to operate Business Solutions. The November 30, 2019, unadjusted trial balance of Business Solutions (reflecting its transactions for October and November of 2019) follows.

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