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To test Upper H 0​: mu equals 50 versus Upper H 1​: mu less than 50​,...

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Statistics

To test Upper H 0​: mu equals 50 versus Upper H 1​: mu less than50​, a random sample of size n equals 22 is obtained from apopulation that is known to be normally distributed. Completeparts​ (a) through​ (d) below. LOADING... Click here to view the​t-Distribution Area in Right Tail. ​(a) If x over bar equals 47.1and s equals 12.9​, compute the test statistic. t 0 equals nothing​(Round to three decimal places as​ needed.)

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Solution State the hypotheses The first step is to state the null hypothesis and an alternative hypothesis Null hypothesis u 50 Alternative hypothesis u 50 Note that these    See Answer
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