A random variable has a normal distribution with mean and known variance 57 Consider the hypothesis test Ho 25 versus H 25 The sample mean X is 20 Compute the value of the sample size n that would cause us to reject the null hypothesis in favour of the alternative hypothesis at the 5 significance level Give your answer to 3 decimal places TL From your answer, what realistic sample size would you recommend in this case On 27 Ons7 On6 On 26

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A random variable has a normal distribution with mean and known variance 57. Consider the hypothesis test Ho: 25 versus H: <25. The sample

A random variable has a normal distribution with mean and known variance 57. Consider the hypothesis test Ho: 25 versus H:

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