a researcher collects a simple random sample of grade-point averages of statistics students, and she calculates the mean of this sample. under what conditions can that sample mean be treated as a value from a population having a normal distribution? question content area bottom part 1 select all that apply. a. the researcher collects more than 30 samples. b. if the population of grade-point averages has a normal distribution. c. if the population of statistics students has a normal distribution.

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14-10-2022
Mathematics

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a researcher collects a simple random sample of grade-point averages of statistics students, and she calculates the mean of this sample. under what conditions can that sample mean be treated as a value from a population having a normal distribution? question content area bottom part 1 select all that apply. a. the researcher collects more than 30 samples. b. if the population of grade-point averages has a normal distribution. c. if the population of statistics students has a normal distribution.

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kumargaurav1012000 kumargaurav1012000 · Answer 1 · 2022-10-26T10:09:50-04:00

An sample mean can be thought to be the worth from populace having a typical dissemination when both or both of these circumstances is met:

1) The populace from which the example is being taken is Regularly circulated. So for this situation, if the number of inhabitants in grade-point midpoints is regularly circulated, the example mean would be treated as a worth from a populace having a typical dissemination

2) The example size is more prominent than 30. On the off chance that we don't know about the populace, yet the example size is more prominent than 30, the example mean can be considered as a worth from a populace having a typical conveyance.