MMs weight solutions milk chocolate
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Weight1sample size30
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1.782sample mean x̅1.746
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1.663sample standard deviation sx0.05028
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1.704sample standard error for the mean SE0.009180=D3/sqrt(30)
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1.755t-critical2.0452
=tinv(1-0.95,30-1)
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1.796margin of error for the sample mean E = tc*SE0.018776=D5*D4
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1.817
lower bound for the 95% confidence interval for µ: x̅-E
1.727
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1.718
upper bound for the 95% confidence interval for µ: x̅+E
1.765
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1.7591.69 included in confidence interval?
No, the confidence interval does NOT include 1.69
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1.71101.69 a possible population mean for the sample?
No, at a confidence level of 95%, the the population mean for the population from which the sample came could not be 1.69 ounces
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1.8011Hypothesis test result?
Reject the null hypothesis: The sample does not come from a population with a mean weight of 1.69 ounces
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1.67
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1.70DescriptorSample dataTest value
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1.78lower bound1.7271.69
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1.80point est µ1.7461.69
The point estimate for the population mean of the sample!
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1.74point est µ1.7461.69
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1.70
upper bound
1.7651.69
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1.82
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1.84
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1.73
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1.67
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1.78
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1.74
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1.64
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1.79
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1.74
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1.78
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1.76
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1.74
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1.73
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1.77
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