1as part of a promotion for a new type of cracker free

Reference no: EM13353639

1. As part of a promotion for a new type of cracker, free trial samples are offered to shoppers in a local supermarket. The probability that a shopper will buy a packet of crackers after tasting the free sample is 0.200. Different shoppers can be regarded as independent trials. If is the proportion of the next 100 shoppers that buy a packet of the crackers after tasting a free sample, then has approximately a

A. N (0.2, 0.0016) distribution.
B. N (0.2, 0.04) distribution.
C. N (0.2, 4) distribution.

2. As part of a promotion for a new type of cracker, free samples are offered to shoppers in a local supermarket. The probability that a shopper will buy a packet of crackers after tasting the free sample is 0.200. Different shoppers can be regarded as independent trials. If is the proportion of the next 100 shoppers that buy a packet of the crackers after tasting a free sample, then the probability that fewer than 30% buy a packet after tasting a free sample is approximately (don't use the continuity correction)
A. 0.3000
B. 0.9938
C. Neither choice is correct.

3. Suppose that you are a student worker in the Statistics Department and agree to be paid by the Random Pay system. Each week the Chair flips a coin. If the coin comes up heads, your pay for the week is $80; if it comes up tails, your pay for the week is $40. You work for the department for 100 weeks (at which point you have learned enough probability to know the system is not to your advantage). The probability that , your average earnings in the first two weeks, is greater than $65 is

A. 0.2500.
B. 0.3333.
C. 0.5000.

Reference no: EM13353639

Questions Cloud

1from previous polls it is believed that 66 of likely : 1.from previous polls it is believed that 66 of likely voters prefer the incumbent. a new poll of 500 likely voters

1which of the following would have a binomial : 1.which of the following would have a binomial distribution?a.a couple will have children until they have three girls

1incomes in a certain town are strongly-right skewed with : 1.incomes in a certain town are strongly-right skewed with mean 36000 and standard deviation 7000. a random sample of

1the scores of individual students on the american college : 1.the scores of individual students on the american college testing act program composite college entrance examination

1as part of a promotion for a new type of cracker free : 1.as part of a promotion for a new type of cracker free trial samples are offered to shoppers in a local supermarket.

1as part of a promotion for a new type of cracker free : 1.as part of a promotion for a new type of cracker free samples are offered to shoppers in a local supermarket. the

1suppose that scores on the math sat exam follow a normal : 1.suppose that scores on the math sat exam follow a normal distribution with mean 500 and standard deviation 100. two

1a set of ten cards consists of five red cards and five : 1.a set of ten cards consists of five red cards and five black cards. the cards are shuffled thoroughly and i am given

1you decide to test a friend for esp using a standard deck : 1.you decide to test a friend for esp using a standard deck of 52 playing cards. such a deck contains 13 spades 13

User Account

All Pages