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The amount of cream sauce on the fettuccine at Al Fred-O's follows a Normal distribution, with...
1. The amount of meat on a Subbies foot-long sub follows a Normal distribution, with a...
1. The amount of meat on a Subbies foot-long sub follows a Normal distribution, with a mean of 8 ounces and a standard deviation of 0.6 ounce. A random sample of 25 subs is selected every day and measured. What is the probability that the mean weight will exceed 8.2 ounces? 0.0478 0.9521 0.3333 0.6667 0.12 2. Micah is cooking a pork roast for his family. He wants to be sure the pork roast has an internal temperature of at...
The amount of fill (weight of contents) put into a glass jar of spaghetti sauce is...
The amount of fill (weight of contents) put into a glass jar of spaghetti sauce is normally distributed with mean μ = 853 grams and standard deviation of σ = 14 grams. (a) Describe the distribution of x, the amount of fill per jar. 1) skewed right 2) normal 3) skewed left 4) chi-square (b) Find the probability that one jar selected at random contains between 838 and 856 grams. (Give your answer correct to four decimal places.) (c) Describe...
The amount of corn chips dispensed into a 13-ounce bag by the dispensing machine has been identified as possessing a normal distribution with a mean of 13.5 ounces and a standard deviation of 0.3 ounce. Suppose 40 bags of chips were randomly selected from
The amount of corn chips dispensed into a 13-ounce bag by the dispensing machine has been identified as possessing a normal distribution with a mean of 13.5 ounces and a standard deviation of 0.3 ounce. Suppose 40 bags of chips were randomly selected from this dispensing machine. Find the probability that the sample mean weight of these 40 bags exceeded 13.6 ounces.
The distribution of actual weights of 8-oz chocolate bars produced by a certain machine is normal...
The distribution of actual weights of 8-oz chocolate bars produced by a certain machine is normal with mean 7.8 ounces and standard deviation 0.14 ounces. (a) What is the probability that the average weight of a bar in a Simple Random Sample (SRS) with three of these chocolate bars is between 7.6 and 7.99 ounces? ANSWER: (b) For a SRS of three of these chocolate bars, what is the level ?L such that there is a 4% chance that the...
The amount of fill (weight of contents) put into a glass jar of spaghetti sauce is...
The amount of fill (weight of contents) put into a glass jar of spaghetti sauce is normally distributed with mean μ = 859 grams and standard deviation of σ = 11 grams. (a) Describe the distribution of x, the amount of fill per jar. skewed right normal skewed left chi-square (b) Find the probability that one jar selected at random contains between 841 and 863 grams. (Give your answer correct to four decimal places.) (c) Describe the distribution of x,...
The amount of soda a dispensing machine pours into a 12-ounce can of soda follows a...
The amount of soda a dispensing machine pours into a 12-ounce can of soda follows a normal distribution with a mean of 12.45 ounces and a standard deviation of 0.30 ounce. Each can holds a maximum of 12.75 ounces of soda. Every can that has more than 12.75 ounces of soda poured into it causes a spill and the can must go through a special cleaning process before it can be sold. What is the probability that a randomly selected can will need to...
Use the standard normal distribution or the t-distribution to construct the indicated confidence interval for the...
Use the standard normal distribution or the t-distribution to construct the indicated confidence interval for the population mean of each data set. Justify your decision. If neither distribution can be used, explain why. Interpret the results. (a) In a random sample of 36 patients, the mean waiting time at a dentist’s office was 24 minutes and the standard deviation was 7.5 minutes. Construct a 90% confidence interval for the population mean. (b) In a random sample of 25 cereal boxes,...
A candy maker produces mints whose weight follows a normal distribution with mean 21:37g and standard...
A candy maker produces mints whose weight follows a normal
distribution with mean
21:37g and standard deviation 0:4g. Suppose 15 mints are selected
at random. Let Y be
the number of mints among them that weigh less than 20:857g. Then,
P(Y 2) = 0:816.
True False
A candy maker produces mints whose weight follows a normal distribution with mean 21.37g and standard deviation 0.4g. Suppose 15 mints are selected at random. Let Y be the number of mints among them...
Use standard normal and t-Distribution tablesYou are expected to use the Standard Normal and the...
Use standard normal and t-Distribution tablesYou are expected to use the Standard Normal and the t-Distribution Tables for all answers on this quiz. You must algebraically calculate the Margin or Error by hand for problems requiring that. Calculator-produced probabilities or confidence intervals will receive minimal credit. 1. (1.5 points) A survey of 177 fatal accidents showed that, in 42 cases, the driver at fault was inadequately insured. Find a point estimate for the population proportion, p, of accidents where the...
The amount of coffee that people drink per day is normally distributed with a mean of...
The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a deviation of 5.5 ounces. 32 random possible standard ly selected people are surveyed. Round all answers to 4 decimal places where a, what is the distribution of X? X-N(16-55 b. What is the distribution of #? z N 169727 e What is the probability that one randomly selected person drinks berween 15.7 and 165 ounces of coffe per day? d....
A candy maker produces mints whose weight follows a normal
distribution with mean
21:37g and standard deviation 0:4g. Suppose 15 mints are selected
at random. Let Y be
the number of mints among them that weigh less than 20:857g. Then,
P(Y 2) = 0:816.
True False
A candy maker produces mints whose weight follows a normal distribution with mean 21.37g and standard deviation 0.4g. Suppose 15 mints are selected at random. Let Y be the number of mints among them...
Use standard normal and t-Distribution tablesYou are expected to use the Standard Normal and the t-Distribution Tables for all answers on this quiz. You must algebraically calculate the Margin or Error by hand for problems requiring that. Calculator-produced probabilities or confidence intervals will receive minimal credit. 1. (1.5 points) A survey of 177 fatal accidents showed that, in 42 cases, the driver at fault was inadequately insured. Find a point estimate for the population proportion, p, of accidents where the...
The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a deviation of 5.5 ounces. 32 random possible standard ly selected people are surveyed. Round all answers to 4 decimal places where a, what is the distribution of X? X-N(16-55 b. What is the distribution of #? z N 169727 e What is the probability that one randomly selected person drinks berween 15.7 and 165 ounces of coffe per day? d....
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