A appropriate statistical tool to: (i) estimate the mean calories of beers with confidence; and (ii) test that the mean percentage of alcohol content of beers is less than at significance.

Assuming that the weights of newborn babies are normally distributed, with mean pounds and standard deviation pounds, _____ babies in a group of 80 are expected to weigh more than pounds.

A die is loaded in such a way that an even number is twice as likely to occur as an odd number.E is the event that a number is less than 4 occurs on a single toss of the die, Find P(E) Statistics homework help

Question: A four digit number, in the range of 0000 to 9999 inclusive, is formed. Find the probability that a. The number begins or ends with zero b. The number contains exactly two non-zero digits Statistics homework help

There are 12 face cards in a standard deck of 52 cards. How many ways can you arrange a standard deck of 52 cards such that the first card is a face card?

You have a coin which is loaded so that the probability of tossing heads is If you toss the coin three times, what is the probability that you will obtain three tails? Round your answer correct to three decimal places.

a mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed with a mean life of 34,000 miles and a standard deviation of 2700 miles he wants to give a guarantee for free replacement of tires that dont wear well. how should he word his guarantee if he is willing to replace approximately 10% of the tires Statistics homework help

Chicken Delight claims that 88% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 90 orders revealed that 74 were delivered within the promised time. At the 0.01 significance level, can we conclude that less than 88% of the orders are delivered in less than 10 minutes Statistics homework help

Last question for me. I get null and alternate hypotheses, but when it throws p-value into the mix I get a little lost. Any help or direction would be appreciated.

Question: simple random sample of size n= 40 is drawn from a population? the sample mean is found to be x = and the sample stand devia is found to be s= co struct a confidence interval for the population mean Statistics homework help

Dr. Michaella Evans, a statistics professor at the University of Maryland University College, drives from her home to the school every weekday. She has three options to drive there: She can take the Beltway, or she can take a main highway with some traffic lights, or she can take a back road which has no traffic lights but is a longer distance. Being as data-oriented as she is, she is interested to know if there is a difference in the time it takes to drive each route. Statistics homework…

A check is issued to a customer for an amount (say $100). Another business charges a percentage to cash the check for the customer. How do you adjust the amount of the check so that the customer receives the full amount after the check cashing percentage is deducted? Statistics homework help

An elevator has a maximum occupancy of 16 people and a weight limit of 2500 lbs. The average weight of the population is 150 lbs, with a standard deviation of 27 lbs, and the distribution of weight in the population is approximately normal. Suppose that a random sample of size 16 people is chosen. a) Is this a problem about means or proportions? If proportions, do we meet the c) What symbol do we use to represent the sample statistic? Statistics homework help