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How to find the weight with a height that does not fall on the SD line
Last semester's survey data found the average height of females in the class to be about 65" with an SD of about 2.5". The average weight was 135 lbs. with a SD of about 25 lbs. Suppose the following girls fell exactly on the SD line. The table below gives their heights, you fill in their weights. (Don't type in "lbs.")
Remember: all pts. on the SD line have the SAME Z scores.
a study of fast-food nutrition compared the caloric content of french fries. thirty-eight randomly selected servings of
Construct a frequency distribution (class, tally and frequency) for the data set using the indicated number of classes. In the table, include the midpoint, relative frequencies and cumulative frequencies.
ComputerWare asked 500 of its iMac purchasers what computer they owned or had owned. There were 83 new computer owners, 60 who had owned a Windows-based computer, and 357 who had owned a Macintosh.
Use a test of the difference between proportions when answering these questions.
There were 1000 more students at the soccer game than nonstudents. Student tickets were $8.50 and nonstudents were $13.25. If the total revenue for the game was $75,925, then how many tickets of each type were sold?
You take a random sample and perform a hypothesis test, getting a p-value of 0.2578. What is the appropriate conclusion? Conclude at the 5% level of significance.
a biased coin is flipped twice. there is a 59 probability that it will land heads on at least one of the two flips.
suppose a random variable x has density fx c x 3 if x equal or great than 10 else where c is a constant.a what is the
You are running a chi-squared test. If you have 5 groups with 3 characteristics each, what would your critical value be with an alpha of .25? a . Between 0 and 3.0
you conducted a t-test in your capstone research. you did not find a statistically significant difference between your
Which approach is most preferred and why? Optimistic, conservative, or minimax regret. Also, is establishing the most appropriate approach before analysising the problem important for the decision maker?
Drawing Conclusions from Unknown Characteristics of Data
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