Question
Suppose a firm that produces light bulbs wants to know whether it can say that its light bulbs typically last more than 1600 hours. Hoping
Suppose a firm that produces light bulbs wants to know whether it can say that its light bulbs typically last more than 1600 hours. Hoping to find support for their claim, the firm collects a random sample and records the lifetime (in hours) of each bulb. The information related to the hypothesis test is presented below.
Test of m <= 1600 versus one-tailed of alternative
Hypothesized mean 1600.0
Sample mean 1609.5
Std error of mean 4.854
Degrees of freedom 35
t test statistic 1.953
p-value- 0.031
Can the sample size be determined from the information above? Yes or no? If yes what is the sample size in this case?
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