if you were asked to express the weight in ounces of a ladybug in scientific notation, would the exponent of the 10 be positive
2 answers:
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<h2><u>Answer with explanation</u>:</h2>
Let be the average estimated calorie content in the population.
As per given , we have
, since the alternative hypothesis is right -tailed , so the test is a right tailed test.
Sample size : n= 58
Sample mean :
sample standard deviation : s= 86
Population standard deviation is unknown , so we use t-test.
Test statistic:
Critical value at significance level 0.001 and degree of freedom 57 (∵ df=n-1 ) :
Decision : Test statistic value is greater than the critical value at significance level 0.001, so we reject the null hypothesis .
Conclusion : We have sufficient evidence to support the claim that the true average estimated calorie content in the population sampled exceeds the actual content.