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To find the sample size needed for a hypothesis test, if Ho: mu=10, Ha: mu<10, sigma is unknown, alpha = 0.01, beta = 0.05 and E = 0.80(sigma), find:
D (enter as 0.x)=
The sample size needed is:
Find the probability that fewer than 5 are satisfied with the airlines. (c)Find the probability that 8 or more are satisfied with the airlines.
Before you run your scatter diagram answer the following: What do you think you will find? Bigger fields have more seats? Smaller fields have more seats? No relationship exists between field size and number of seats? A strong relationship exists betw..
determine the point estimate of the population the margin of error for the following confidence interval and the number
Obtain and interpret the 40th percentile for the finishing times and part D) find and interpret the eighth decile for the finishing times.
"Broad constructionalists" believe that modern sensibilities need to be brought into any analysis of the document and what it means and that the spirit, rather than the letter, of the document should be used in determining national laws and regulatio..
Using hypergeometric distribution, determine the probability that the sample of 6 will comprise 2 nonconforming watches?
Which of the variables below do you think will be roughly normally distributed? Please select all that apply.
The men took an average of 20.5 hours per year of personal time with a standard deviation of 2.75 hours. What is the pooled estimate of the variance? Round to three decimal places.
The average monthly gasoline purchase for a family with 2 cars is 90 gallons. This statistic has a normal distribution with a standard deviation of 10 gallons. A family is chosen at random.
we know many types of data fall into a normal distribution with most of the observations falling towards the middle.
A local pizza parlor advertises that their average time for delivery of a pizza is within 30 minutes of receipt of the order. To check the accuracy of their claim, the delivery time for a random sample of 64 orders were recorded.
Identify the null hypothesis, alternative hypothesis, test statistic, p-value or critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim.
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