Plzzz answer :
a) -9/10
b) -3/10
c) 3/10
d) 9/10
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Answers: 2
Mathematics, 21.06.2019 19:30
Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20
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Mathematics, 21.06.2019 23:20
Which equation can be solved to find x the measure of jk in the apex
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Mathematics, 22.06.2019 01:00
Is experimental probibilty the same as the observed frequency in math? i need the answer asap!
Answers: 1
Mathematics, 22.06.2019 02:30
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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