Question

Multiple Choice Questions

9.To test a hypothesis involving proportions, both np and n(1-p) should

a) Be at least 30

b) Be equal or greater than 5

c) Lie in the range from 0 to 1

d) There are no specific conditions surrounding the values of n and p

10. The purpose of hypothesis testing is to:

(a) Determine value of the sample mean.

(b) Determine evidence in favor of a parameter.

(c) Determine the appropriate value of test statistic.

(d) Derive the standard error of the data.

11. Chebyshev's Theorem states that the percentage of measurements in a data set that fall within two standard deviations of their mean is:

- 75%
- At least 75%
- 88.89%
- At least 88.89%.

12. Normally distributed data are referred to as:

- Bell-shaped
- Asymmetrical
- Skewed
- Peaked

Answer #1

9.**To test a hypothesis involving proportions, both np
and n(1-p) should**

**Be equal or
greater than 5 (b)**

10. **The purpose of hypothesis testing is
to:**

**Determine
evidence in favor of a parameter.(b) .**

11. **Chebyshev's Theorem states that the percentage of
measurements in a data set that fall within two standard deviations
of their mean is: **

**At least
75%.(b)**

[ according to Chebyshev's rule at least of data lies within k sd of the mean.

here, k = 2

the percentage of data that lies within 2 sd from the mean is :-

at least ]

12. **Normally distributed data are referred to
as:**

**Bell-shaped
(a)**

*** if you have any doubt regarding the problem ,please write it
in the comment box...if satisfied,please
**UPVOTE.**

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Test ONE claim about a population parameter by collecting your
own data or using our class survey data. Include your
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