in a random sample of 63 professional actors, it was found that 41 were extrover

Question

in a random sample of 63 professional actors, it was found that 41 were extroverts.
I found the point estimate, just do not know how to find the 95 perfect confidence interval for p with the upper and lower limit. how do you do this on a calculator??

ror ths problem, carry at least tour digits after the decimal in your calculations, Answers may vary sitghtly due to roundwng. In a random sampie ot 63 professional actors, it was found that 11 were extroverts. Let p represent the proportion of all actors who are extroverts. nnd a pont estimate tor p. Round your answer to four deamw your answers to two detamal places) tenet mherpretaton of the mea of the interval we are confident that the true propertin are extraverts falla ou site this mlervar of actors who are ext con dent that the revie portion above thia Lurerwa

Explanation / Answer

Here pcap = 41/63 = 0.6508

For 95% CI, z-value =1.96

lower limit = 0.6508 - sqrt(0.6508*(1-0.6508)/63) = 0.5907

upper limit = 0.6508 + sqrt(0.6508*(1-0.6508)/63) = 0.7109

You can directly put above expression in excel to get your answer or use respective functions of "+", "-" and square root in your calculator.

Let me know if you are looking for some specific calculator.

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.