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We have administered an anxiety test to all members of the class. The mean anxiety score is 71 and the standard deviation is 9. (higher score=higher anxiety)
What percentage of people scored over 86 on the anxiety test?
Can you conclude that the information in the article is untrue? Use the 0.05 significance level. Determine the p-value and explain its meaning.
What is the probability of selling your home for the median price in your city (My zip code is 91730 Alta Loma). How has the graphical display of data changed in the last 10 years? How will it change in the next 10 years?
At the 0.01 level of significance, can the student group conclude that there is a difference in average textbook prices for new textbooks sold on campus and over the Internet?
10.3% of students in statistics actually take the course because they want to. If two students are selected at random, find the probability that both took statistics because they wanted to.
The probability that house sales will increase in the next 6 months is estimated to be 0.25. The probability that the interest rates on housing loans will go up in the same period is estimated to be 0.74. The probability that house sales or intere..
How much should you be willing to pay for this deal? Do you think you would actually pay that much? Why? Expected Value:? Pay it? Why?
The samples a group of 100 new fathers and finds that their mean is 64.5. What is the shape of the comparison distribution?
If a random sample of 40 customers is taken, what is the probability that the sample average expenditure per customer for this sample will be 87.00 or more?
Under ordinary traffic conditions. What is the probability that a single car chosen at random will travel through the tunnel in 10 minutes?
(a) Use the steps of hypothesis testing, (b) figure the effect size for the study; and (c) explain your answers to (a) and (b) to someone who has never had a course in statistics.
Can you show me an example of this? I am a nurse, can you show me an example from the health care field to help me to understand this?
An online book store wants to determine if there is an association between coupon redemption and gender. After a special coupon broadcast to its reward members, the following data on coupon redemption at check out were collected.
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