# QNT 275 Week 5 Practice Set

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QNT 275 Week 5 Practice Set

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# QNT 275 Week 5 Practice Set

**Complete **the Week 5 Practice Set problems.

**Click** the Assignment Files tab to submit your assignment.

Practice Set 5

# Practice Set 5

- This distribution has only one parameter. The curve is skewed to the right for small
*df*and

becomes symmetric for large *df*. The entire distribution curve lies to the right of the vertical

axis. The distribution assumes nonnegative values only

- t distribution

- Normal distribution

- Chi-square distribution

- Linear regression.

- Find the value of x2 for 12 degrees of freedom and an area of .025 in the right tail of the chi-

square distribution curve. What is the value of chi-square? Round to three decimal places

- Determine the value of x2 for 14 degrees of freedom and an area of .10 in the left tail of the

chi-square distribution curve. What is the value of chi-square? Round to three decimal places

- Determine the value of x2 for 23 degrees of freedom and an area of .990 in the left tail of the

chi-square distribution curve. What is the value of chi-square? Round to three decimal places.

- Α ____________ compares the observed frequencies from a multinomial experiment with

expected frequencies derived from a certain pattern or theoretical distribution. The test

evaluates how well the observed frequencies fit the expected frequencies.

- Goodness-of-fit test

- Chi-square test

- Linear regression

- The __________ are the frequencies obtained from the performance of a

multinomial experiment. The expected frequencies are the frequencies that we expect to obtain

if the null hypothesis is true.

- Observed frequencies

- Expected frequencies

- Fluctuating frequencies

# x

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