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### Question #2000009: Descriptive Statistics

Question: A sample of 36 eggs is taken by the owner of chicken farm. He measures a mean weight of 30 grams with a standard deviation of 3 grams. The…

### Question #2000010: T-test: Testing hypotheses

Question: Deliverable Length: 3-4 paragraphs Details: A member of the management team at Widgecorp asks if an ANOVA test would be useful for any of the statistics you've produced to…

### Question #2000011: Normal Distribution problems

Question: A sample of 16 is taken from a population that has a normal distribution with mean 123 and standard deviation 20. The probability that the sample mean is less…

### Question #2000012: Confidence Intervals – Calculation

Question: A sample of 48 families is taken, and a sample mean income of $68,000 with a sample standard deviation of $12652 is calculated. Determine a 98% confidence interval for…

### Question #2000013: Z-test Hypothesis Testing

Question: You're trying to explain null and alternative hypotheses to one of the senior managers at Company W and he's not "getting it" when you use snack food sales. Help…

### Question #2000014: Calculating Confidence Intervals

Question: The national association of Independent colleges and universities reported that students graduating from public colleges and universities carry an average debt of $12,000 upon graduation. Assume that this average…

### Question #2000015: Hypothesis Testing

Question: Perform the following hypothesis test. Note that you will do both a p-value hypothesis test and a critical-value hypothesis test. The Motor Trend New Car Buyer’s Guide listed the…

### Question #2000016: Working with Confidence Intervals

Question: a) In a study of sudden infant death syndrome [SIDS], the authors report that "7 of the 53 infants who had broncheo-pulmonary displasia [BPD] (13%) and two of the…

### Question #2000017: Testing Hypothesis with the Z-statistic

Question: A case control study was done to investigate the association between tuberculosis and heavy smoking in a particular population. One question that arose was whether or not there was…