In an ESP experiment, a subject is asked to guess randomly generated numbers fro

Question

In an ESP experiment, a subject is asked to guess randomly generated numbers from 1 to 10. In 900 guesses, the subject guesses correctly 101 times.

If the subject is merely guessing, he should guess correctly ---90--- times.

The standard error (SE) is ---9--- . (Hint: This is the standard error for the sum.)

Compute the z-test statistic for 101. ---1.2222---

Find the observed significance level or P-value of the statistic (answer in decimal form). ---?---

Let's reject the null hypothesis if the P-value is less than 5 percent. In this problem, should you reject the null hypothesis that the subject is merely guessing and any variation is due to chance? Enter yes or no. ---NO--

Explanation / Answer

here mean =np=900*1/10=90

std error =(np(1-p))1/2 =9

test statistic z=(X-mean)/std error =1.2222

p value for above test statistic =0.1108 ( try 0.1112 if this does not work for rounding)

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