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Doctoral assistant ships of Ph.D students 50% have paid assistant ships. a random sample of n=200 students is chosen.. based on this sample and using the properties of the binomial distribution, what is the approximate standard deviation of the expected number of students who have paid assistant ships?
measurement of water intake obtained from a sample of 17 rats that had been injected with a sodium chlorine solution
(i) Interpret the parameter on GDP. Make sure to talk about Sign and Size.
suppose that a box contains 5 candies in which 2 of them are sugar-free. you select two candies and eat them. find the
A manufacturer of batteries is considering three new battery designs. An attempt was made to determine whether the mean lifetime in hours is the same for each of the three designs.
She decided to investigate and gather the following sample information. Would it be reasonable for her to conclude that union nurses earn more? Use the .02 significance level. What is the p value?
Give a possible description why serum cholesterol values for older males are lower than for younger males and reverse is true for females.
Calculate the conservative margin of error, as a proportion and as a percentage, for each of the following possible sample sizes:
High-alumina refractory castables have been extensively investigated in recent years because of their significant advantages over other refractory brick of the same class-lower production and application costs, versatility, and performance at high..
Troista Mobile Accessories sells mobile apps on their Web site. If a customer spends on average, $12 per visit and visits the Web site 20 times each year, what is the average nondiscounted gross profit during a customer's lifetime? Given that Troi..
You are given the following information for Kleen Power Co. Assume the company's tax rate is 38 percent.
We have the following data: sample mean ¯x= 42.6, sample deviation s= 2, number of samples n= 33 and the null hypothesis is µ0= 42.
A medical researcher estimates that no more than 55% of US adults eat breakfast every day. In a random sample of 250 US adults, 56.4% say that they eat breakfast every day. At 0.01 level of significance, is there enough evidence to reject the re..
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