01/23/20

Dice: How big is the probability that there will be six in each cast you make five consecutive? Answer in decimal form.
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11/20/19

random sample of 50 college students?
Suppose that 60% of college students eat pizza weekly. Answer the following questions if you have a random sample of 50 college students. What is the probability that exactly 29 eat pizza... more
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10/30/19

Checking account problem

For the month of April a checking account has a balance of $528 for 22 days , $2331 for 5 days and $231 for 5 days . What is the account mean daily balance for April
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10/30/19

What is the probability that a randomly selected day from 2013 will have a Group Trades total within 101,000 of the mean? Mean: 3421439 St Dev: 508638.08
I'm trying to apply it to Stat Crunch on the Normal Calculator, but I don't know what number I should use. Is it P(mean/101,000)?
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09/17/19

Statistics Problem about probability
We have an urn with 1 red ball and 9 yellow balls. We will sample 3 balls form the urn with replacement. What is the probability that we will obtain at least one yellow ball?
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07/14/19

HELP please! I'm stuck on this question
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 435 babies were​ born, and 348 of them were girls. Use the sample data to construct a 99​%... more
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07/11/19

Probabilty and baye's theorem
Three identical boxes A,B, C contains 2white, 3black balls; 4white, 5black balls & 3white, 4 black balls. One ball is drawn at random from each box. If the ball is white, find the probability... more
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07/02/19

stats 150 math problem

in 1980 more than 35 of cars purchased had a manual transmission by 2007 the proportion has decreased to 7.7%. a random college students who owned cars revealed the following: out of 131 cars, 21... more
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06/18/19

Binomial Probablity

A small regional carrier accepted 16 reservations for a particular flight with 15 seats. 13 reservations went to regular customers who will arrive for the flight. Each of the remaining passengers... more
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05/28/19

ANOVA (Several means test) Bonferroni Correction, and finding F critical values with significance levels other than .05 and .01
I understand how to perform a one factor ANOVA test for several means. However, Ive tried learning about Post-Hoc Comparisons and it seems to me that they compare every possible pair of groups... more
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05/23/19

In 360 tosses of a pair of dics 74 seven and 24 elevens are oserbved. Using the 0.05 significance level, test the hypothesis that the dics are fair
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05/17/19

The life of a Radio Shack record player is normally distributed with a mean of 3.2 years and a standard deviation of 0.8 years. Radio Shack guarantees its record players for 2 years.
(a) Find the probability that a record player will last less than 2 years?(a) Find the probability that a record player will last more than 4 years?
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05/15/19

6 cards are taken at random and without replacement from a standard deck .what is the probability that there are 4 heart among them?
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12/23/13

Research statistics
A business study conducted by researchers showed a positive correlation between employee engagement and customer satisfaction. This is an example of what type of research?     Choose... more
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