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In a random sample of 32 large cap mutual funds, the average YTD return is 3.05%...

  1. In a random sample of 32 large cap mutual funds, the average YTD return is 3.05% with a standard deviation of 9.77%. Conduct by hand an appropriate hypothesis test at the 5% level to test whether the average YTD return for a large cap mutual fund is positive. (Again, that means to write the hypotheses, compute the test statistic, and estimate the p-value.) Give your test conclusion in terms of the question being asked. Confirm your test statistic and result with Minitab. Also, interpret the associated confidence bound for this test.
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Given: n=32, X=3005 Sz9077 Hypotheses & но сре 0 Hi & M 70 Sürce sample standard deviation only known , We will use t-statiste Value - 0004363 (from Praline for) funlue u lip Alon А1о-о) therefore there is supcient evidence to reject Ho. Hence there

From Minitab it can be done in the following steps:

Choose Stat > Basic Statistics > 1-Sample t

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