1m a survey of 150 senior executives, 50% said that the most common ob interview

Question

1m a survey of 150 senior executives, 50% said that the most common ob interview mistake is to have a tle or no knowledge of the company Use a o os sgte an le el totest the claim that inthep 1 of all senior executives 45% say that the most common ob interview mistake is n have itle or nok de of the company, Vdentily the uill hypothesis, altemative hypothesis, test statistic, Pvalue, conclusion about the nul hypothesis, and final conclusion that addresses the original claim Use the P-value method Use the nomal distribution as an approximation of the binomial distribution dentity the ul and shemative hypotheses Choose the corect answer below H p055 H, p>055 H >045 H, P#056 OF. H, p 045 H, p#04S H p045 The tes saintie is z«D Rond to two decimal places needed) Th. P-vsiae isRondtefour decanal places as needed ) enty the conclsion aboud ths nul bypothesis and the nal conclusion that addresses the eriginal clais ufkletteluc. 5, wan-o ction of claim than among perler eseceves 45% thut the most common job interview B N

Explanation / Answer

Option- F is the correct answer.

The test statistic Z = (p - P)/sqrt (P * (1 - P) /n)

= (0.5 - 0.45)/sqrt(0.45 * 0.55 /150)

= 1.23

P-VALUE = 2 * P(Z > 1.23)

= 2 * (1 - P(Z < 1.23))

= 2 * (1 - 0.8907)

= 2 * 0.2186 = 0.4372

As the p-value is greater than the significance level 0.05, so the null hypothesis is not rejected.

So there is not sufficient evidence to support the claim.

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