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Question: Is Paul tall? According to the National Center for Health Statistics, the distribution of heights for 15-year-old males has a mean of 170 centimeters (cm) and a standard deviation of 7.5 cm. Paul is 15 years old and 179 cm tall.
(a) Find the z-score corresponding to Paul's height. Explain what this value means.
(b) Paul's height puts him at the 85th percentile among 15-year-old males. Explain what this means to someone who knows no statistics.
Create a stem-and-leaf plot for the male speeds.- Create a histogram for the male speeds.- Compare the pictures created in (a) and (b) and the dotplot in Case Study.
in a study of the effect of diet on cholesterol rats were fedseveral different diets. 2 one diet had 5 added ?ber from
1. What are the minimum and maximum lengths required for a bolt to meet factory tolerances? 2. What percentage of bolts will be rejected?
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?
Use the Probability applet or statistical software to simulate 100 free throws shot by a player who has probability 0.75 of making each shot. (In most software, the key phrase to look for is "Bernoulli trials." This is the technical term for indep..
A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it.
A bag of jelly belly candies contains the following colored jelly beans: red (10), blue (2), orange (5), brown (21), green (0), and yellow (18). Construct the probability distribution for x.
An analysis of 1,000 cellular phone calls made from company phones at the offices of Kant, Taekitini, Moore, LLC reveals that the length of these calls is normally distributed, with m = 240 seconds and s = 40 seconds.
consider the experiment of selecting a playing card from a deck of 52 playing cards. each card corresponds to a sample
consider the formula used for any confidence interval and the elements included in that formula. what happens to the
The number of defects in a machine-made product is a random variable X with the following probability distribution:- Show that P(x) is a probability distribution.
Using WSJ or IBD look up the following stocks: General Electric, General Motors, Microsoft and Intel and answer the following questions for each stock. You may have to refer to several issues of your newspaper for all of the information if the pap..
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