Suppose the weights of seventh graders at a certain school vary according to a Normal distribution, with a mean of 100 pounds an
d a standard deviation of 7.5 pounds. A researcher believes the average weight has decreased since the implementation of a new breakfast and lunch program at the school. She finds, in a random sample of 35 students, an average weight of 98 pounds.
What would the P?value tell the researcher in this situation?
a.) the probability that a random sample of students would have a mean of 100 pounds, if the true population mean is 98 pounds
b.) the probability that a random sample of students would have a mean of 98 pounds, if the true population mean is 100 pounds
c.)the probability that a random sample of students would have a mean less than or equal to 100 pounds, if the true population mean is 98 pounds
d.)the probability that a random sample of students would have a mean less than or equal to 98 pounds, if the true population mean is 100 pounds
What would the P?value tell the researcher in this situation?
a.) the probability that a random sample of students would have a mean of 100 pounds, if the true population mean is 98 pounds
b.) the probability that a random sample of students would have a mean of 98 pounds, if the true population mean is 100 pounds
c.)the probability that a random sample of students would have a mean less than or equal to 100 pounds, if the true population mean is 98 pounds
d.)the probability that a random sample of students would have a mean less than or equal to 98 pounds, if the true population mean is 100 pounds
1 answer:
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Answer:
Step-by-step explanation:
Alright, lets get started.
The probability that an event will occur is 2/3.
Means out of 3 times, 2 times that event will occur.
Please refer the pie chart for this, blue is the color which represents event to be occur and orange is not to be occur.
We can see, blue part is much more than orange part.
means the likelihood of event occuring is LIKELY. : Answer
Hope it will help :)
