in percentage of water in hydrated salts experiment

1.How does the “percent-water in the hydrated salt” will be affected -?

a.If you handle the crucible with (oily) fingers before its mass measurements.

. b.If the hydrated salt is overheated and the anhydrous salt thermally

c.decomposes, one product being a gas d.If one student decided to skip the step of reheating the sample in the experimental procedure.

e.If the original sample is unknowingly contaminated with a second anhydrous salt.

2. What is the % mass of water present in a 4.63 g sample of FeCl3 ●6H2O?

1.

Given the following information, what is the percentage dividend yield between today and period 1?

Calculate your answer to two decimal places (e.g., 2.51)

2.

Given the information in the table, what is the price of the stock in YEAR 1?

The following data represent soil water content (percentage of water by volume) for independent random samples of soil taken from two experimental fields growing bell peppers.

Soil water content from field I: x1; n1 = 72

15.2 11.3 10.1 10.8 16.6 8.3 9.1 12.3 9.1 14.3 10.7 16.1 10.2 15.2 8.9 9.5 9.6 11.3 14.0 11.3 15.6 11.2 13.8 9.0 8.4 8.2 12.0 13.9 11.6 16.0 9.6 11.4 8.4 8.0 14.1 10.9 13.2 13.8 14.6 10.2 11.5 13.1 14.7 12.5 10.2 11.8 11.0 12.7 10.3 10.8 11.0 12.6 10.8 9.6 11.5 10.6 11.7 10.1 9.7 9.7 11.2 9.8 10.3 11.9 9.7 11.3 10.4 12.0 11.0 10.7 8.5 11.1

Soil water content from field II: x2; n2 = 80

12.1 10.2 13.6 8.1 13.5 7.8 11.8 7.7 8.1 9.2 14.1 8.9 13.9 7.5 12.6 7.3 14.9 12.2 7.6 8.9 13.9 8.4 13.4 7.1 12.4 7.6 9.9 26.0 7.3 7.4 14.3 8.4 13.2 7.3 11.3 7.5 9.7 12.3 6.9 7.6 13.8 7.5 13.3 8.0 11.3 6.8 7.4 11.7 11.8 7.7 12.6 7.7 13.2 13.9 10.4 12.9 7.6 10.7 10.7 10.9 12.5 11.3 10.7 13.2 8.9 12.9 7.7 9.7 9.7 11.4 11.9 13.4 9.2 13.4 8.8 11.9 7.1 8.8 14.0 14.2

Answer questions 1 to 5 below. Show all your work with steps and not just final answers.

1. Compute the sample mean and sample standard deviations of soil water content for field I and for field II.

2. Let μ1be the population mean for x1and let μ2 be the population mean for x. Find a 95% confidence interval for μ1 – μ2.

3. Examine the confidence interval and explain what it means in the context of this problem. Does the interval consist of numbers that are all positive? all negative? of different signs? At the 95% level of confidence, is the population mean soil water content of the field I higher than that of the field II?

4. Which distribution (Standard Normal or Student’s t) did you use? Explain why? Do you need information about the original soil water content distributions?

5. Use α = 0.01 to test the claim that the population mean soil water content of field I is higher than that of field II. Please provide the following information:

(a) What is the level of significance? State the null and alternate hypotheses.

(b) What sampling distribution will you use? What assumptions are you making? Compute the sample test statistic to nearest hundredth.

(c) Find (or estimate) the P-value. Sketch the sampling distribution and show the area corresponding to the P-value.

(d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis? Are the data statistically significant at level α?

(e) Interpret your conclusion in the context of the application.

Government G levies an income tax with the following rate structure:

Required:

1. Taxpayer A’s taxable income is $122,500. Compute A’s tax and average tax rate. What is A’s marginal tax rate?
2. Taxpayer B’s taxable income is $210,000. Compute B’s tax and average tax rate. What is B’s marginal tax rate?

The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week. Assume that a sample of 420 accidents provided the following data. Sunday 63. Monday 47. Tuesday 55. Wednesday 45. Thursday 57. Friday 67. Saturday 86. 1)Conduct a hypothesis test to determine if the proportion of traffic accidents is the same for each day of the week. What is the p-value? 2. Compute the value of the x^2 test statistic (to 3 decimals). 3. The p-value =? 4. Compute the percentage of traffic accidents occuring on each day of the week (to one decimal)

Using the percentage-of-receivables method for recording bad debt expense, estimated uncollectible accounts are $55,000. If the balance of Allowance for Doubtful Accounts is $11,000 debit before adjustment, what is the balance after adjustment?

A) $55,000

B) $11,000

C) $66,000

D) $44,000

write about chase bank as a whole Industry growth:       Rate of growth in percentage terms (increase in industry sales averaged for five-year period). Where is the industry in the life cycle - emerging, rapid growth, maturity, decline?

Question: Peoples Company uses the percentage of Sales method to determine bad debt expense; based on company's history, 3% of the Sales balance will be uncollectible. Year Sales Write-offs Accounts Receivable 20x5 $5,000,000 $1,000,000 20x6 $7,000,000 $120,000 $1,200,000 20x7 $9,000,000 $190,000 $1,400.000 20x8 $10,000,000 $200,000 $1,600,000 Based on the information above, determine, the following: A. Bad Debt Expense B.Allowance for Uncollectible Accounts: view the Written Example to see how to calculate, there is a spreadsheet attached. C. Net Realizable Value Please show all steps thanks.

Can you distinguish between absolute changes and percentage changes in the financial statement numbers? Which is a better measure of change? How do you tell?

Question: Perform a common size analysis and percentage change analysis for 2016 and 2017. What do these analyses tell you about Brinker?