Mathematics, 17.08.2019 17:20 beccaxhope
3. the average annual income of 100 randomly chosen residents of santa cruz is $45,221 with a standard deviation of $30,450. a. what is the standard deviation of the mean annual income? b. test the 1-sided hypothesis that the average annual income is $40,000 against the alternative that it is less than $40,000 at the 10% significance level. c. test the 2-sided hypothesis that the average annual income is equal to $42,000 against the alternative that it is not at the 5% significance level. d. what is the confidence interval for part (c)? e. what is the p-value for part (b)? f. do you reject or fail to reject part (c)? write your answer and a complete, accurate, sentence.
Answers: 2
Mathematics, 21.06.2019 21:30
Plz hurry evaluate the expression a+b where a=8 and b=19
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Mathematics, 21.06.2019 22:20
The four students in the table below each recorded the time and distance traveled while exercising. exercising distance (miles) time (minutes) gia 2 30 harris 5 50 ian 3 40 jackson 4 80 which list ranks the students from fastest walker to slowest walker? jackson, gia, ian, harris harris, jackson, ian, gia harris, ian, gia, jackson jackson, harris, ian, gia
Answers: 3
Mathematics, 21.06.2019 23:40
Me d is also an option but i couldn't get it in the picture
Answers: 2
3. the average annual income of 100 randomly chosen residents of santa cruz is $45,221 with a standa...
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