**MA8391 Question Paper Probability and Statistics Regulation 2017 **

MA8391 Question Paper Probability and Statistics Regulation 2017 Anna University free download. Probability and Statistics MA8391 Question Paper pdf free download.

5. What are the parameters and statistics in sampling BTL -1 Remembering

6. State level of significance. BTL -1 Remembering

MA8391 Question Paper Probability and Statistics

A random sample of 25 cups from a certain coffee dispensing

machine yields a mean x = 6.9 occurs per cup. Use 0.05 level of

significance to test, on the average, the machine dispense μ = 7.0

ounces against the null hypothesis that, on the average, the machine

dispenses

μ < 7.0 ounces. Assume that the distribution of ounces per cup is

normal, and that the variance is the known quantity σ2=0.01 ounces

MA8391 Question Paper Probability and Statistics

Twenty people were attacked by a disease and only 18 were survived.

The hypothesis is set in such a way that the survival rate is 85% if

attacked by this disease. Will you reject the hypothesis that it is more

at 5% level. MA8391 Question Paper Probability and Statistics

In a large city A, 20 percent of a random sample of 900 school boys

had a slight physicaldefect. In another large city B, 18.5 percent of a

random sample of 1600 school boys had somedefect. Is the

difference between the proportions significant?

A standard sample of 200 tins of coconut oil gave an average weight

of 4.95 kg with a standard deviation of 0.21 kg. Do we accept that

the net weight is 5 kg per tin at 5% level of significance?

Write down the formula of test statistic‘t’ to test the significance of

difference between the means.

Subject Name | Probability and Statistics |

Subject Code | MA8391 |

Regulation | 2017 |

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