Need major Statistics help with this one. Null Hypothesis, Alternative Hypothesis, Statistic type, Value of Statistic, P-Value, etc. (will write the whole problem in a response)

Question

anonymous · Answer

The mean SAT score in mathematics, (Mu), is 53. The standard deviation of these scores is 41. A special preparation course claims that its graduates will score higher, on average, than the mean score 503. A random sample of  70 students completed the course, and their mean SAT score in mathematics was 505. At the 0.05 level of significance, can we conclude that the preparation course does what it claims? Assume that the standard deviation of the scores of course graduates is also 41.

Perform a one-tailed test. Then fill in the table below.

Carry your intermediate computations to at least three decimal places, and round your responses as specified in the table.

anonymous · Answer

attachment

anonymous · Answer

oh dang...ya this hurts my brain looking at this. WOA

anonymous · Answer

Right?? This is torture.

anonymous · Answer

@undeadknight26

anonymous · Answer

he might get this. I dont know. But this...WOA

anonymous · Answer

Is the Null Hypothesis u=503?

perl · Answer

so the null hypothesis says that the mean score hasn't changed, it is the old score

anonymous · Answer

okay so it is u=503? So then the alternate hypothesis would be u>503?

perl · Answer

your question has a typo , please check

perl · Answer

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