Mathematics, 26.11.2019 08:31 cswalke
The market research firm salary. com reported that the mean annual earnings of all family practitioners in the united states was $178,258. a random sample of 55 family practitioners in los angeles that month had mean earnings of = $192,340 with a standard deviation of $42,387. do the data provide sufficient evidence to conclude that the mean salary for family practitioners in los angeles is greater than the national average? state the null and alternate hypotheses. compute the value of the t statistic. how many degrees of freedom are there? state your conclusion. use the α = 0.05 level of significance.
Answers: 2
Mathematics, 21.06.2019 14:30
Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.
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Mathematics, 21.06.2019 15:00
Acircular hot tub located near the middle of a rectangular patio has a diameter of 48 inches. the patio measures 11 feet by 6 feet. what is the area of the patio that is not covered by the hot tub?
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Mathematics, 21.06.2019 23:00
Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?
Answers: 2
The market research firm salary. com reported that the mean annual earnings of all family practition...
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