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Question: Your company prepares and distributes frozen foods. The package claims a net weight of 24.5 oz. A random sample of today's production was weighed, and the results were summarized as follows: average¼24.41 oz, standard deviation¼0.11 oz, sample size¼5 packages. Find the two-sided 95% confidence interval for the mean weight you would have found had you weighed all packages produced today.
A game involves selecting a card from a regular 52-card deck and tossing a coin. The coin is a fair coin and is equally likely to land on heads or tails.
If nine managers who recently changed jobs are randomly chosen, what is the probability that Three changed for intellectual challenges.
(b) Using n = 15 compare your results to those of part (a) first by inspection of the two histograms (note the scale) and by comparing the numerical results summarizing mean and variance of the estimator.
Develop a Venn diagram to illustrate the data, hence use it to find the probability that a worker picked at random: (1) Does not speaker English, (2) Speak neither of the languages, (3) Speak French and Russian but not English.
a real estate agent has 12 properties that she shows. she feels there is a 40 chance of selling any one property during
Suppose that I am indifferent about the following two choices: a sure $3,000 payoff, and a payoff of $5,000 with probability 0.2 and $500 with probability 0.8.
What is the probability that the sum of the values of the two cards (where we count jacks, queens, and kings as 10, and count aces as 1) is at least 4?
Suppose 10 studies were done to assess the relationship between watching violence on television and subsequent violent behavior in children.
suppose bolts are being manufactured using a process so that it is known that the length of the bolts follows a normal
a) Under what circumstances can z be greater than one? b) Under what circumstances can a probability be greater than one?
Following Theorem 6.6 prove that the reciprocal proportionality model (Section 6.4.1) is invariant with respect to scaling of the observed random variables.
A manufacturer claims that the life span of its tires is 51,000 miles. Assuming the manufacturer's claim is correct, what is the probability the mean of the sample is 50767 miles or less?
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