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1. Quality control. A tire manufacturer recently announced a recall because 2% of its tires are defective. If you just bought a new set of four tires from this manufacturer, what is the probability that at least one of your new tires is defective?
2. Pepsi promotion. For a sales promotion, the manufacturer places winning symbols under the caps of 10% of all Pepsi bottles. If you buy a six-pack of Pepsi, what is the probability that you win something?
3. Auto warranty. In developing their warranty policy, an automobile company estimates that over a 1-year period 17% of their new cars will need to be repaired once, 7% will need repairs twice, and 4% will require three or more repairs. If you buy a new car from them, what is the probability that your car will need:
a) No repairs?
b) No more than one repair?
c) Some repairs?
Rewrite in the following alternative format with left and right endpoints:Would a given mean value of 79.56 be likely, given the calculated confidence interval?
A manufacturer of a chemical used in glue, attempting to control the amount of a hazardous chemical its workers are exposed to, has given instructions to halt production if the mean amount in the air exceeds 3.0 ppm.
a farm brings 15 tons of watermelons to market. find 95 confidence interval for the population mean? given a population
Consulting income at Kaplan Associates for the period February - July is shown in the table below. Assume that the initial forecast for February is $65,000. Use Exponential smoothing to forecast August's income. Month Income ($1,000) February 70.0 Ma..
a company can decide how many additional labor hours to acquire for a given week. subcontractor workers will only work
which of the following statements is a good definition of instrument validity?a it is the accurate measurement of a
a government agency has specialists who analyze the frequencies of letters of the alphabet in an attempt to decipher
Where does the p-value come from for the spatial scan statistic used in SaTScan? How Monte Carlo simulation is used to derive a p-value for a cluster ?
What is the standard deviation of the number of requests in a 10 hour work day? Give your answer to four decimal places.
Describe your answer to a person who has never had a course in statistics.
Problem: The random variable T denotes the time in second for which a firework burns before exploding. The probability density function of T is given by
you find that a small business loan in the amount of 50000 is the amount you need to purchase the restaurant location.
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