Question

Consider the following hypotheses: HO: 76.7 HA u > 76.7 A sample of 41 observations yields a sample mean of 78.0. Assume that the sample is drawn from a normal population with a population standard deviation of 4.4. (You may find it useful to reference the appropriate table: z table or t table) a-1. Find the p-value. es O 0.05 s p-value < 0.10 Op-value 20.10 O p-value < 0.01 O 0.01 s p-value <0.025 O 0.025 s p-value < 0.05

Answer 1

Pago to Data Hypothesis is Hoa u < 76.7 Hal- u 76.7 Significance level K010 Given n=41 F = 78.0 S = 4.4 Test statistic: 2 = ولد n Neo, slun Zcal 78 76: 7 4.4 / 1:3 06871 zcal - 1.842

Pago NO. MDJ Data REDMI NOTE 6 PRO Critical value z tab za - zot 1:28 P value:- from Excel P-value NORM SPIST (2) NORMSDIST (11892) 9707 P-value 0.9707 P-value 0293 P-value Reject Ho Conclusioni- -p-value is Reject He since the smaller than a kle conclude that is greater than 76:7 the sample mean