a-nutritionist-is-testing-whether-the-variability-in-daily-calcium-intake-among-

Question

A nutritionist is testing whether the variability in daily calcium intake among adults has increased compared to the known standard deviation. The population is assumed to be normally distributed. She performs a right-tailed chi-square test using a random sample of 1010  adults. She chooses a significance level of 0.100.10. What is the critical value and the rejection region for this right-tailed chi-square test?

Accepted Answer

Critical value: χ0.10,92=14.684\chi_{0.10,9}^2=14.684Rejection region: 14.684"\u003eχ2\u003e14.684\$$chi^2$$\u003e14.684

Answer

Critical value: χ0.10,92=15.987\chi_{0.10,9}^2=15.987Rejection region: χ215.987\$$chi^2$$

Answer

Critical value: χ0.10,92=15.987\chi_{0.10,9}^2=15.987Rejection region: 15.987"\u003eχ2\u003e15.987\$$chi^2$$\u003e15.987

Answer

Critical value: χ0.10,92=14.684\chi_{0.10,9}^2=14.684Rejection region: χ214.684\$$chi^2$$