Question: 1: z test When the population mean and population variance is given. Suppose that a sample of 100 farms in Bukidnon, the average yield of

1: z test When the population mean and population variance is given. Suppose that a sample of 100 farms in Bukidnon, the average yield of a new variety of rice is computed as 6.1 tonnes/ha and the national average is known to be 6.2 tonnes/ha and the population standard deviation is known to be 0.45 t/ha. In the language of statistics, it is desired to find out whether or not the sample mean of 6.1 t/ha for 100 farms in Bukidnon is significantly different from the national average of 6.2 t/ha. The statistical hypothesis to be tested is: Ho : = 6.2 t/ha. The alternative hypothesis is HA: 6.2 t/ha. Choose 5% level of significance. Determine Z What is the conclusion

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