The ____ is often the preferred measure of central tendency if the data are seve

Question

The ____ is often the preferred measure of central tendency if the data are severely skewed Mean Median Mode Range Approximately what percentage of scores fall within one standard deviation of the mean in a normal distribution? 34% 95% 99% 68% We have computed the probability of an event to be 0.01. Which of the following statements is correct? The event is unlikely to occur. We would expect the event to occur about 10 percent of the time. The event can not occur. All of the above. True or False. The correlation measures the strength and direction of the linear relationship between two quantitative variables. True False True or False. We use sample statistics to estimate population parameters. True False How much confidence should you place in a single research study? you should completely trust a single research study. you should trust research findings after different researchers have found the same findings

Explanation / Answer

11.) (B)Median

Explanation Median is the most preferred measure of central tendency when data are severely skewed or you have ordinal data.

12.) (D) 68%

13.) (A) the event is unlikely to occur.

Explanation a probability of 0.01 means 1 in hundred. So if we start with 100 sample there is a good chance that no sample will have that event.

14.) (b) False

Explanation Correlation is the statistical measure that indicates the extent to which two or more variable fluctuates together or the linear relationship between them.

The strength of linear relationship is indicated by Correlation coefficient.

15.) (a) True

16.) (b) you should trust research findings after different researchers have found the same findings.

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