Independent sample T-test: * unknown variances * expected normal distribution * comparing means * (Als variantie bekend is dan z-test) * Analyse-compare means-independent sample t-test‚ define groups * H0: RateMen=RateWoman (do not differ) * Ha: Ratemen≠RateWoman (RateMen differs from RateWoman) * H0: u1 = u2 vs. HA: u1 ≠ u2 (this is two tailed ) also possible: * H0:uWomen≥ uMen vs. HA: uWomen0 OR d 6000 → Ha: p > 0‚5 of Ha≠0‚5 indien dubbelzijdig wilt
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selecting a pricing method and selecting the final price‚ Singapore GP Pte Ltd employed 2 different pricing strategies. They are 1. Price discounts and allowances 2. Differentiated Pricing Promotional pricing was not used in the sale of the FORMULA 1™ SingTel Singapore Grand Prix tickets as none of the techniques: lost-leader pricing‚ special-event pricing‚ cash rebates‚ low-interest financing‚ longer payment terms‚ warranties and service contracts and psychological discounting were used to
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ULTRASONIC TESTING (UT) USEFUL FORMULAE 1. Velocity of Ultrasonic Waves in a medium (V) = f x l OR W here f = Number of cycles per second is called frequency. Measured in ‘Hertz’. Abbreviated as ‘Hz’. One Hertz is equivalent to One cycle per second l = Distance covered in one cycle is wavelength V= Velocity of Ultrasonic wave inside the medium in ‘mm/s’ 2. A coustic Impedance (Z) = V x r W here: Z= Acoustic Impedance r= D ensity V= Velocity 3. R eflection Coefficient
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"K-I-S-S" redirects here. For other uses‚ see Kiss (disambiguation). KISS is an acronym for "Keep it simple‚ stupid" as a design principle noted by the U.S. Navy in 1960.[1][2] The KISS principle states that most systems work best if they are kept simple rather than made complex; therefore simplicityshould be a key goal in design and unnecessary complexity should be avoided. The phrase has been associated with aircraft engineer Kelly Johnson (1910–1990).[3] The term "KISS principle" was in popular
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14. If x has the probability distribution f(x) = 12x for x = 1‚2‚3‚…‚ show that E(2X) does not exist. This is famous Petersburg paradox‚ according to which a player’s expectation is infinite (does not exist) if he is to receive 2x dollars when‚ in a series of flips of a balanced coin‚ the first head appears on the xth flip. 17. The manager of a bakery knows that the number of chocolate cakes he can sell on any given day is a random variable having the probability distribution f(x) = 16 for x =
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1) 0.069 mol MgSO4/ 0.015 mol H2O = 4.6 = 5 Formulae for hydrated MgSO4 = MgSO4 5H2O 2) There are at least two reasons why heating to find percentage of water in hydrated crystals is not recommended for all hydrates. The first reason is that some hydrates have such a strong bond with the water that not all of it will be able to be removed. The second reason is that different hydrates have their own mass. Depending on the mass and type of hydrate‚ some of the molecule may be burned off from heating
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Cooper 12 minute run For my copper 12 minute run I completed 10 and ¾ laps of a 200 metre track. This totals too around 2150 Metres in 12 minutes. If I compare this to a professional athlete there score would be much greater for many reasons. For example capillirisation would occur more often in a professional athlete due to all of their training. Because they have more capillaries it means that the oxygenated blood can reach the muscles quicker so they become less fatigued. The professional athletes
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Macroeconomics 2 - Essay 1 Explain for which reasons the real wage is expected to be acyclical in the Classical model‚ countercyclical in the Keynesian model and procyclical in the New Keynesian model. Which model would better fit the empirical evidence? Real Wage is defined as the payment to labour measured in units of output adjusted for the current level of inflation. This can be written as: Real Wage= Nominal Wage x (Expected Price Level/ Price Level) W/P = ω x X /P P Real Wage cyclicality
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Chilean Copper Mine BCOM/275 CHILEAN COPPER MINE On August 5‚ 2010‚ 33 miners were trapped in a chamber 2‚300 feet below the earths surface. It is the responsibility of the company to notify the family of the situation before the media. The last thing that any company needs is to have the media represent them in a disaster such as this. Verbal Communication There are many things to address‚ but first we must focus on who was on shift at the time of the collapsed and contacting the next
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Deforestation Tropical forests include dense rainforests‚ where rainfall is abundant year-round; seasonally moist forests‚ where rainfall is abundant‚ but seasonal; and drier‚ more open woodlands. Tropical forests of all varieties are disappearing rapidly as humans clear the natural landscape for construction‚ to build roads and urban areas and make room farms and pastures (Lindsey‚ 2007). Although deforestation meets some of the human needs‚ it also has profound‚ sometimes devastating‚ consequences
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