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Mathematics, 21.08.2019 09:30, irenecupcake4348
Suppose a 15-minute call costs $5.26, and a 30-minute call costs $10.24. find a formula relating time (in minutes) and cost (in dollars).
how do you do
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Answers: 1
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Mathematics, 21.06.2019 22:30, noathequeen
James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?
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Mathematics, 22.06.2019 02:30, Leii691
According to a research study, parents with young children slept 6.4 hours each night last year, on average. a random sample of 18 parents with young children was surveyed and the mean amount of time per night each parent slept was 6.8. this data has a sample standard deviation of 0.9. (assume that the scores are normally distributed.) researchers conduct a one-mean hypothesis at the 5% significance level, to test if the mean amount of time parents with young children sleep per night is greater than the mean amount of time last year. the null and alternative hypotheses are h0: μ=6.4 and ha: μ> 6.4, which is a right-tailed test. the test statistic is determined to be t0=1.89 using the partial t-table below, determine the critical value(s). if there is only one critical value, leave the second answer box blank.
Answers: 3
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Suppose a 15-minute call costs $5.26, and a 30-minute call costs $10.24. find a formula relating tim...
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