there is 0.01 and 0.05 alpha level, what is the critical cutoff z scores for both? which one is easier to reject the null hypothesis and why?

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A: Given Z =9.13, pvalue=0.000

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Q: A humane society claims that less than 71% of households in a certain country own a pet. In a random…

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Q: What is the critical value for a one sided z-test with an alpha = .02?

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Q: What is the critical value of a two-sided paired t test with ? = 0.05 and ? = 25?

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Q: what is the critical value of a single sample t-test based on n=23, and a two-tailed alpha of a=0.05

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Q: 17. Redo the t-test with the smaller mean difference of M1 = 14 and M2 = 12. What is your…

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Q: 6) A sample of size 11 produced a variance of 18. Is this sufficient to reject the null hypothesis…

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Q: For an ANOVA comparing three treatment conditions, what is stated by alternate hypothesis (H1)? a.…

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Q: What is the critical value of a single sample t-test based on n = 23, and a two-tailed alpha of…

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Q: At a .05 “alpha level”, what is the “critical cutoff” z-score for a “two-tailed test”?

A: The critical value is zα/2.

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.