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Computing the probability values using normal distribution.
The mean price of new homes from a sample of houses is $155,000 with a standard deviation of $15,000. The data set has a bell-shaped distribution. Between what two prices do 68% of the houses lie?
How would I go about finding a 95% confidence interval for the population mean if a sample of size 20 has a mean of 18.2 and a sample standard deviation of 3.6?
Black Hole Pizza Parlor instructs its cooks to put a "handful" of cheese on each large pizza. A random sample of six such handfuls were weighed.
Create the 95% confidence interval for portion of respondents who feel president is doing a good job. Based on the intervalin part(a), It is sensible to conclude that majority.
A new group comes along and that only has 5 people. Their weights are also measured initially and after 9 weeks. What would be the most accurate methodology for determining the percentage of weight loss for this new group?
Make a decision regarding the null hypothesis based on the sample information. Interpret the results of the test and state your conclusion.
Critically discuss the assumptions, if any, regarding a Chi-square test? What are the assumptions to apply linear regression?
A Myrtle Beach resort hotel has 120 rooms. In the spring months, hotel room occupancy is approximately 75%. What is the probability that at least half of the rooms are occupied on a given day?
Of the 1,4000 homemakers sampled, 420 were able to identify the brand by name. Compute the standard error of the proportion.
A southern state has an unemployment rate of 6%. The state conducts monthly surveys in order to track the unemployment rate. In a recent month, a random sample of 700 people showed that 35 were unemployed.
Is there a relationship between sales and newspaper?
If we select 84 students (ASSUME INDEPENDENCE), what is the Standard Deviation of the Probability Distribution that would list the number of students.
Given that R2 = 0.31, complete the ANOVA table. State conclusion about the regression relationship. Testing Hypothesis about the coefficients b3, b4, using alpha = 0.05.
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