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If other factors remain constant, the larger the sample is, the more likely you are to obtain a significant value for the repeated-measures t.
true or false?
Explain how the marketing analyst can use independent samples to collect the data.
a company pays its employees an average of 15.90 an hour with a standard deviation of 1.50. if thh wages are normally
the lifetimes in years of a certain kind of electronic component is a random variable having probability density
Estimate the proportion of infants whose mothers experienced toxemia during pregnancy. Use 95% confidence level and doctors think that more than 20% of the infants their mothers experienced toxemia. Is that correct?
Household income does not tend to follow a normal distribution in a particular state, yet average income is approximately $45,000/year in this state, with a standard deviation of about $9000.
suppose that x1...xn form a random sample from a normal distribution with meanu u pronounced mu and variance1.a write
Examined the effect of body position on blood pressure
Same survey showed that average length of time each store was in business in 6 years, with standard deviation of 2.5 years. Which is more variable, number of magazines or number of years?
when analysis of data reveals a difference between levels of a factor what is this called?a. factor effectb. level
Diamonds and Hearts are red and Clubs and Spades are black. Suppose you randomly select three cards from the deck. The outcome of interest is the colour of each of the selected cards.
The average price of a home is reported to be $203,190. Use this price as the population mean, and assume the population standard deviation is 43,890.
Write a correct null and alternative hypothesis for testing the claim that the mean life of a battery for a cell phone is at least 115 hours.
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