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46% of men consider themselves professional baseball fans. you randomly select 10 men and ask if he considers himself a professional baseball fan. Find the probability that the number who consider themselves baseball fans is (a) exactly eight, (b) at least eight, and (c) less than eight.
Based on this information can we determine the proportion of weeks the family spends less than $200. If so, find this proportion. If not, explain why.
Find the expected frequency to test the claim that walking and low, moderate, and high blood pressure are not related. Round to the nearest tenth if necessary.
How to explain the influences on z-scores with constant variables in hypothesis tests with
How large a sample is required to estimate the mean speed with a margin of error equal to 2 miles per hour with 90% confidence?
System data for a job shop revealed that the average time spent by a job in the shop was approximately n = 5 working days. Construct a statistical test using a level of significance of alpha = 0.05
Find the zeros of the function in terms of e, f, and g. Under what condition would the zeros of the given function be two distinct real values?
Write three quadratic equations within a, b, c (coefficients of x^2, x and the constant as 1 integers, 2 rational, 3 irrational numbers).
Carbon monoxide emissions for a certain kind of cary vary with mean 2.9 gm/mi and standard deviation 0.4 gm/mi. A company has 80 of these cars. Estimate the probability that the mean CO level is between 3.0 and 3.1 gm/mi.
The table shows the results of a survey im which 180 family were asked if they own a home and if they will be purchasing a new vehicle this year.
A fair coin is tossed four times and X is number of heads on first three tosses and Y on last three. What is the joint probability mass function of x and y? What is the marginal pmf? Are X and Y independent?
Use analysis of variance to test any differences in mean glue strengths.
Under what situations must the nonparametric test be used? Describe in detail. Write down the strengths and weaknesses of nonparametric tests?
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