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Textese is a sound based form of spelling to reduce the time of text messaging and no. of characters, using textisms such as "2day" for "today". Parents have been concerned about effect of textese on spelling ability. A study of Australian children aged 10-12 considered the effect of text entry method on the spelling subtest of the Wide Range Achievement Test (WRAT). Multipress is the orginal entry method in which 3 or 4 letters are assigned a key and the key must be pressed one to four times to produce each letter. Predictive is a single key-press per letter with suggested completion of the word. a total of 84 students took WRAT test and were classified according to the test entry method usually used: Multipres (27), Predictive (45) or non-texter (12 students).
a) What is explanatory and response variable?
b) Is this an experimental study or an experiment? Explain why?
c) The differences among 3 texting methods were not statistically significant. What does no significant difference mean in describing mean in describing the outcome of this study?
d) This design is unbalanced. How many teens would be in each group if the design were balanced?
E) Why is it unlikely to have balanced groups for a study such as this one?
Roybow Corporation sells lawn mowers that cost $160 each to purchase and prepare for sale. Annual sales are 5,000 mowers, carrying costs are 20 percent of inventory costs, and Roybow incurs a cost of $32 each time an order is placed.
discuss what policy actions might have prevented or mitigated the balance-of-payments problem and the subsequent
Chi Square Goodness of fit and test for independence are two important test statistics. Briefly discuss the difference between these two.
A person wanting to lock in an exchange rate for the payment of a foreign-currency obligation to someone else would:
create a research paper that discusses how one company illustrates social responsibility in its environment.discuss
Ed and Linda are near retirement. They expect to be in retirement for 25 years. Inflation is 4%, they need 47500 annually, and they are making 6.5% interest. How much do they need in the bank today to begin retirement.
the australian government has just issued treasury bonds with a par value of 1000 a maturity of 14 years and annual
how many additional sales dollars must be produced to cover each $1.00 of inremental advertising and the total contribution dollars if the price of product is reduced by 10 percent?
Try flexing the june budget, comparing it with the original june budget, and so find the sales volume variance.
A futures price is currently 40 cents. It is expected to move up to 44 cents or down to 34 cents in the next six months. The risk-free interest rate is 6%. What is the value of a six month call option with a strike price of 39 cents?
If Simpson is going to make up 45% of the new firm (and Lachey will comprise the remaining 55%), what will be the beta of the new merged firm? There will be no additional infusion of debt in the merger.
debtequity ratio. the present capital structure of jones corporation is shown below.debentures1200000collateral
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