Customers of two national big-box discount retail outlets were surveyed to measu

Question

Customers of two national big-box discount retail outlets were surveyed to measure their store. A sample of 240 Store-C customers had a mean satisfaction rating of 79 (out of 100) and a standard deviation of 12. A sample of 220 Store-S customers had a mean satisfaction rating of 77 (out of 100) and a standard deviation of 10. A hypothesis test is conducted to assess whether a difference existed between the mean satisfaction ratings of all customers of the two stores. The significance level was set at 5% and the test resulted with a p-value ota052 the degree of satisfaction they had with Since the significance level was set at 5%, the ( Maximum probability of a Type II error is 5% O Minimum probability of a Type l error is 5% O None of the above O Minimum probability of a Type II error is 5% @ Maximum probability of a Type l error is 5%

Explanation / Answer

as we know that signiicance level is equaivalent to type I error ; therefore correct option is :

maximum probability of a type I error is 5%.

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