Mathematics, 17.04.2020 02:33 andrea021098
Geoff has been running a restaurant in the city for many years. He knows from experience that the proportion of customers that leave tips at this restaurant is 0.58. Geoff has recently opened a restaurant in a suburban area. It seems that tipping habits are different in the suburbs: Geoff believes that the proportion of customers that tip at his new restaurant (p) may be different to 0.58. He conducts a hypothesis test to find out. The null and alternative hypotheses are:H0: p = 0.58Ha: p â 0.58Geoff takes a random sample of 117 customers and notes whether or not they leave a tip. In this sample, the proportion of people that leave a tip is 0.62.a)Calculate the test statistic (z). Give your answer to 2 decimal places.
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Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1
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Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least âc.â using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least âcâ?
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Mathematics, 21.06.2019 22:00
Which function in vertex form is equivalent to f(x) = x2 + 6x + 3? f(x) = (x + 3)2 + 3 f(x) = (x + 3)2 â 6 f(x) = (x + 6)2 + 3 f(x) = (x + 6)2 â 6
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Mathematics, 22.06.2019 00:30
y=2xâ1 5xâ4y=1 is (1,1)(1,1) a solution of the system?
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Geoff has been running a restaurant in the city for many years. He knows from experience that the pr...
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