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A national real estate magazine advertised that 16% of first-time home buyers had a family income below $43,000. A national real estate firm beleeves this percentage is too low and samples 100 of its records. the firm finds that 23 of its first-time home buyers did have a family income below $43,000. Does the smaple suggest that the prportion of first-time home buyers with an income less than $43,000 is more than 16%?
a) Write the null and alternative hypotheses;
H0 = H1 =
B) Decide an appropriate distribution from h0
C) What conditions should we check
D) Set decisions rule with a=0.05
E) What is the value of the test statistic
F) What is the associated p-value
G) State your conclusion only with p value at a=0.05
All three wines are produced in the optimal solution. How little would the profit for Blanc have to be for it to no longer be produced?
How did you think that your sample would compare to the national mean? This is your hypothesis. State either the alternate or null hypothesis and identify which one you are stating.
If the store's meat scale is off by 0.1 lb (e.g., a purchase listed as 1 lb actually weighs 1.1 lb), what will be the values of the sample mean and standard deviation after the owner corrects his data for the weighing error?
Suppose the sample variance for 30 parts turns out to be s 2 = .0005. Use α = .05 to test whether the population variance specification is being violated.
Estimate the mean score for all the students in the district, using a 99% confidence interval.
Polling disclaimer. A newspaper article that reported the results of an election poll included the following explanation.
Class consists of 55% women, and 45% men 10% of the women smoke and 20% of the men smoke, what is the probability that a randomly selected smoker is female?
the number of viewers for the american idol television show follows a normal distribution with a mean of 29 million and
Marketing and Consumer Behavior Many homeowners use TIKI torches for outside decoration and to burn special oil to repel insects. Independent random samples.
Assume the underlying population is normal and σ = 0.04. Is there any evidence to suggest that the true mean percentage of 8h is different from 1%? Use a = 0.01 and compute the p value.
ACT scores are approximately Normally distributed with a mean of 21 and a standard deviation of 5, as shown in the figure.
determine the optimal strategy for the situation by representing it as a game and finding the saddle point. state your
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