A simple random sample of size n is drawn from a population that is known to be normally distributed. The sample variance, s squareds2, is determined to be 11.611.6. Complete parts (a) through (c). (a) Construct a 90% confidence interval for sigma squaredσ2 if the sample size, n, is 20. The lower bound is 7.317.31. (Round to two decimal places as needed.) The upper bound is 21.7921.79. (Round to two decimal places as needed.) (b) Construct a 90% confidence interval for sigma squaredσ2 if the sample size, n, is 30. The lower bound is 7.907.90. (Round to two decimal places as needed.) The upper bound is 1919. (Round to two decimal places as needed.) How does increasing the sample size affect the width of the interval? The width does not change The width increases The width decreases

When an interest-bearing note comes due and is uncollectible, the journal entry includes debitingaccounts receivable and crediting notes receivable and interest revenue. accounts receivable and crediting interest revenue. notes receivable and crediting accounts receivable and interest revenue. notes receivable and crediting accounts receivable.

1. revising for conciseness - eliminating flabby expressions, limiting long lead-ins, and dropping unnecessary fillerstime is money in any business environment. people want information communicated quickly and clearly. to make your writing more concise and understandable, avoid flabby expressions, long lead-ins, and unnecessary fillers. your audience will appreciate your brevity.1. if your writing contains a flabby expression like in view of the fact that, replace it with the word because / although / probably .for each of the following two sentences, choose the best revision.2. i am sending you this letter to inform you that we have experienced an unexpected surprise within our expense sheet, but we are positively certain we will solve it.1) we need to inform you that we have experienced an unexpected surprise with our expense sheet, but we are midway to an end result.2) we have identified a problem with our expense sheet, but we will solve it.3) i am sending you this letter to inform you that we have a problem with our expense sheet, but we are positively certain we have a solution.3. it is the user who should contact the center.1) everyone knows that it is the user who should contact the center.2) the user should contact the center.3) if there is a problem, the user should contact the center. read the following passage, and then answer the question.[1] you scheduled seven conference calls for this morning between 10 and 11 a. m. [2] generally, the company limits the number of conference calls to three per hour. [3] i’m letting you know that in the future, we should be more careful about scheduling.4. which revision limits the long lead-in in sentence 3? 1) in the future, we should be more careful about scheduling.2) i’m letting you know so that in the future we are more careful about scheduling calls.3) so that you know in the future, we should be more careful about scheduling.

What type of negotiating strategy requires the supplier to open its books to the purchasers? a. competitive biddingb. cost-based price modelc. price-based modeld. market-based price modele. transparent negotiations