SOLUTION: A lady stenographer claims that she can take dictation at the rate of 118 words per minute can we reject her claim on the basis of 100 trials in which she demonstrates a mean of 11

Question 976038: A lady stenographer claims that she can take dictation at the rate of 118 words per minute can we reject her claim on the basis of 100 trials in which she demonstrates a mean of 116 words and a S.D. of 15 words
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

You didn't specify a confidence interval however for the 90% confidence interval, the critical value is 1.645.
So assuming a confidence level of 90% or better, you cannot reject the null hypothesis ().

RELATED QUESTIONS
Olive has a report to type which is 10,000 words long. She can type at an average speed... (answered by josgarithmetic)

Pat can type 36 words per minute. At that rate, how many words can she type in 42... (answered by ewatrrr)

An advertising firm claims that the average expenditure for advertising for their... (answered by ewatrrr)

Rebecca is a typist. She can type 8400 words every two and a half hours. What is her work (answered by ewatrrr)

bridgett says she can swim 500 yards in 5 minutes. She claims this is the rate of 35 mph. (answered by jorel1380,ewatrrr)

please help me solve this word problem: sham are's ex girlfriend can only type two words... (answered by Cromlix)

I need some help with some statistics problems. I'll start with the one below. If... (answered by stanbon)

In a test of H0 : μ = 100 against Ha : μ < 100, a random sample of size 65... (answered by jim_thompson5910)

josie can type 100 words in the same time that it take jane to type 75 word. if jane's... (answered by Theo)