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Here are the statistics for the anxiety scale again, with means and standard deviations for the sample (M= 33.56, SD = 19.40) and for the population (µ = 14.20, o = 9.70). With their sample size of N = 92, the researchers reported the following results from a z test: “z= 19.15, p< .05." What can we conclude from the statistics that the researchers reported? O A. The difference between the sample mean and the population mean is statistically significant. O B. The researchers rejected the null hypothesis. O C. The sample of children with AS had significantly higher anxiety, on average, than the population.

Here are the statistics for the anxiety scale again, with means and standard deviations for the sample (M= 33.56, SD = 19.40) and for the population (µ = 14.20, o = 9.70). With their sample size of N = 92, the researchers reported the following results from a z test: “z= 19.15, p< .05." What can we conclude from the statistics that the researchers reported? O A. The difference between the sample mean and the population mean is statistically significant. O B. The researchers rejected the null hypothesis. O C. The sample of children with AS had significantly higher anxiety, on average, than the population.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Here are the statistics for the anxiety scale again, with means and standard deviations for the sample (M= 33.56, SD= 19.40) and for the population (u = 14.20, o = 9.70). VWith their sample size of N = 92, the researchers reported the following results from a z test: “z = 19.15, p< .05." What can we conclude from the statistics that the researchers reported? O A. The difference between the sample mean and the population mean is statistically significant. O B. The researchers rejected the null hypothesis. O C. The sample of children with AS had significantly higher anxiety, on average, than the population. O D. All of these are correct.
Transcribed Image Text:Here are the statistics for the anxiety scale again, with means and standard deviations for the sample (M= 33.56, SD= 19.40) and for the population (u = 14.20, o = 9.70). VWith their sample size of N = 92, the researchers reported the following results from a z test: “z = 19.15, p< .05." What can we conclude from the statistics that the researchers reported? O A. The difference between the sample mean and the population mean is statistically significant. O B. The researchers rejected the null hypothesis. O C. The sample of children with AS had significantly higher anxiety, on average, than the population. O D. All of these are correct.
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