Test of a hypothesis for a single population mean
For a right-tailed test of a hypothesis for a single population mean with n = 10, the value of the test statistic was 1.411. The p-value is
less than .001.
between .10 and .05
between .05 and .025.
greater than .10
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At the library 200 people were surveyed about magazines they read. 75 read US News, 45 read Rolling Stone, 120 read Time, 15 read all three magazines.
Determine the p-value. (Give your answer correct to four decimal places.) Describe the appropriate conclusion. Reject the null hypothesis, there isn't significant evidence that the mean is less than 52.
It was extremely dark in room and banta could not see cards, after thinking bit banta divided cards in 2 piles and quite surprisingly on counting number of inverted cards in both piles were equal. What do you believe banta should have done?
In a chi-square test of independence, the number of degrees of freedom equals the
The town in mid west has been experiencing the steady population decline of 5 % per year for past decade. If there were 40750 residents in year 2011 and trend continues, determine population in the year 2027?
An experiment was designed to determine the mean difference in weight gain for pigs fed ration A as compared with those fed ration B. Eight pairs of pigs were used. The pigs within each pair were litter-mates.
Complete the hypothesis test with alternative hypothesis ?d ? 0 based on the paired data that follows and d = O - Y. Use ? = 0.01. Assume normality.
A study over a 10-year period showed that the certain mammogram test had a 50 percent rate of false positives. This indicates that
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