Mathematics, 21.11.2019 07:31 champ1135
According to a lending institution, students graduating from college have an average credit card debt of $4,100.a random sample of 40 graduating seniors was selected, and their average credit card debt was found to be $4,455.assume the standard deviation for student credit card debt is $1,100. using α=0.01a. does this sample provide enough evidence to challenge the findings by the lending institution? determine the null and alternative hypotheses. h0: (μ< ,> ,≠,≥,≤,=) ish1: μ (=,≤,< ,≠,≥,> ) isb. the z-test statistic is(round to two decimal places as needed.)c. the critical z-score(s) is(are)(round to two decimal places as needed. use a comma to separate answers as needed.)d. because the test statistic (is greater than the critical value, is less than the critical value, does not fall within the critical values, falls within the critical values), (reject, do not reject) the null hypothesis. e. determine the p-value for this test. the p-value is(round to three decimal places as needed.)
Answers: 3
Mathematics, 21.06.2019 19:20
The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to
Answers: 3
Mathematics, 21.06.2019 20:10
Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12
Answers: 3
Mathematics, 21.06.2019 20:30
Ateam has p points. p = 3w + d w = wins d = draws a) a football team has 5 wins and 3 draws. how many points does the team have?
Answers: 1
According to a lending institution, students graduating from college have an average credit card deb...
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