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lawyer [7]
3 years ago
5

shane wants to figure out what grade he is getting in math. His test scores were 85.6 ,78.5 ,92.5 ,67 and 83.7. What was his ave

rage test score? What grade will he receive?
Mathematics
2 answers:
allsm [11]3 years ago
6 0
Average is 81.46% grade will be b


Zigmanuir [339]3 years ago
5 0
The average test score his 81.46.the grade he will receive would be 81 %.
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Step-by-step explanation:

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Let, NULL HYPOTHESIS, H_0 : \mu = 14.8 hours  {means that the mean amount of time American teenagers watch social media posts per month is same as the mean amount of time last year}

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The test statistics that will be used here is One-sample t-test;

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