3. A company makes a profit of $60 per software program and $45 per video game. The company can produce at most 300 software pro
1 answer:
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<h2>Answer with explanation:</h2>
Given : Sample size : n = 36
Significance level for 90% confidence :
Sample mean :
Standard deviation :
By using standard normal table for t-values,
Critical t-value :
Thus, the correct value of t to construct a 90% confidence interval for the true mean percentage of cacao :
Confidence interval for population mean :
Hence, A is the correct answer .