Fresh Mart QQ's profit on each delivery is estimated by RM P, where the random variable P has mean u and variance 1.92. According to previous record, the value of u used to be 0.85. Manager suspects that this value has increased. In order to test at the 5% significance level whether the value of u has increased, a random sample of 50 delivery transaction is chosen. Assume the variance of P is unchanged. Given that Ep 59. Find the unbiased estimates of the population mean. Stating the null and alternative hypotheses, test at 5% significance level on whether the manager's suspicion is true. The alternative hypothesis for a test is stated as below: H:u # 30 ate the null hypothesis and determine whether this test is one-tail test or two-

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Fresh Mart QQ's profit on each delivery is estimated by RM P, where the
random variable P has mean u and variance 1.92. According to previous
record, the value of u used to be 0.85. Manager suspects that this value has
increased. In order to test at the 5% significance level whether the value of u
has increased, a random sample of 50 delivery transaction is chosen. Assume
the variance of P is unchanged. Given that Ep 59.
Find the unbiased estimates of the population mean.
Stating the null and alternative hypotheses, test at 5% significance level on
whether the manager's suspicion is true.
The alternative hypothesis for a test is stated as below:
H:µ # 30
State the null hypothesis and determine whether this test is one-tail test or two-
tail test hypothesis.
Transcribed Image Text:Fresh Mart QQ's profit on each delivery is estimated by RM P, where the random variable P has mean u and variance 1.92. According to previous record, the value of u used to be 0.85. Manager suspects that this value has increased. In order to test at the 5% significance level whether the value of u has increased, a random sample of 50 delivery transaction is chosen. Assume the variance of P is unchanged. Given that Ep 59. Find the unbiased estimates of the population mean. Stating the null and alternative hypotheses, test at 5% significance level on whether the manager's suspicion is true. The alternative hypothesis for a test is stated as below: H:µ # 30 State the null hypothesis and determine whether this test is one-tail test or two- tail test hypothesis.
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