Mathematics, 04.08.2021 16:50 CoolDudeTrist

In an interview for a secretary position at the dealer, a typist claims a tying speed of 45 words per minute. On On the basis of 70 trials, she demonstrated an average speed of 43 words per minute with a standard deviation of 15 words per minute.
Test at 5% significance level on the typist’s claim.

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In an interview for a secretary position at the dealer, a typist claims a tying speed of 45 words pe...