ciarrap552
13.12.2020 •
Mathematics
QUESTION 7
Cerulean City's Nurse Joy claims that the mean number of Pokemon the trainers at Cerulean Gym have is 23. Saffron City's Nurse Joy wants test the claim. A random sample of 21 trainers has a mean number of 20.4 Pokemon. The standard deviation for all trainers is 4.2 Pokemon. At a level of significance of 5%, do you have enough evidence to reject the claim? Assume the population is normally distributed.
A. Find the standardized test statistic. Show work in order to receive credit on this question. Round answer to the hundredths place (2 decimal places).
B. Find the P-value. Explain how you found the value in order to receive credit on this question.
C. Decide whether to reject or fail to reject the null hypothesis. Explain your reasoning to receive credit on this question.
Label your answers as A, B and C.
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Ответ:
i got 10x/3 if its not, Then my apologies
Step-by-step explanation: